  Linux PPP HOWTO
  Robert Hart, hartr@hedland.edu.au
  v2.2, 25 August 1996
  ܂݂Ђ isle@st.rim.or.jp (1997/01/30)

  ̕ł Linux PC  PPP T[oɐڑ@A2 ̃lbg[N
   PPP łȂ@AȂ Linux }V PPP T[oɂ@ɂ
  Đ܂B
  ______________________________________________________________________

  ڎ

  1. Cg_NV
     1.1 NCAgƎgT[rX
     1.2 fBXgr[VƂ̈Ⴂ

  2. IP ԍ
  3. ̖̕ړI
     3.1 PPP NCAgݒ肷
        3.1.1 DIP ͎g킸 CHAT g
     3.2 PPP T[o̐ݒ
     3.3 2  LANA邢 LAN ƃC^[lbg PPP Őڑ@
     3.4 ̕ȂAA

  4. ̕ň\tgEFÃo[W
  5. ̗̑Lp/dvȕ
     5.1 Lp Linux ֘Ã[OXg

  6. Linux J[l̐ݒ
  7. Linux J[l\[X̃CXg[
  8. n[hEFAɂ
  9. J[l̃RpC - Linux 1.2.13 ̏ꍇ
     9.1 J[l̃RpC - Linux 1.3.x  2.0.x ̏ꍇ
     9.2 PPP-2.2  /proc/net/dev ɂ
     9.3 J[lݒ̂̑̐ݒɂ

  10. PPP ڑ邽߂ɕKvȏ
     10.1 foROւ̐ڑeXg

  11. VA|[gƂ̃Xs[hɂẴ
  12. f̐ݒ
     12.1 VA|[g̃t[ɂ

  13. PPP ƃ[g
  14. PPP ڑpݒt@C
     14.1 options.tbl t@C
     14.2 ǂ̃IvVw肷ׂH
        14.2.1 /etc/ppp/options(PAP/CHAP gȂꍇ)
        14.2.2 /etc/ppp/options (PAP/CHAPgꍇ)

  15. /etc/resolv.conf t@C̐ݒ
  16. PAP/CHAP ̔F؃t@C
     16.1 PAP ̔F؃t@C
     16.2 CHAP ̔F؃t@C

  17. PPP ڑ蓮ŋN
  18. ڑɂ - ڑpXNvg̍
     18.1 [UƃpX[hF؂̏ꍇ
     18.2 ppp-on XNvg
     18.3 PPP NXNvg̏C
        18.3.1 ppp-on XNvg
        18.3.2 T[oł PPP ̊Jn
        18.3.3 ppp-on-dialer XNvg
     18.4 chat XNvg̈Ӗ
     18.5 PAP/CHAP F؂gꍇ̃XNvg
     18.6 pppd ̃fobO -f Ŏw肷IvVt@C

  19. ڑXNvg̃eXg
  20. PPP ڑ̏I
  21. fobO
     21.1 PPP RpĈłALinux FĂ܂B
     21.2 ftHg[g(default route)ݒł܂B

  22. 2 ̃lbg[N PPP łȂɂ
     22.1 IP ԍ̐ݒ
     22.2 oH̐ݒ
     22.3 lbg[NZLeB

  23. ڑmAA
     23.1 ʂ̌oHݒ
     23.2 e-mail ̏

  24. N̏I
  25. LAN ̃[eBOɊւ
     25.1 ZLeBɂẴ

  26. ǂ悤ȂƂɁB
  27. ڑ܂ĂN₷
     27.1 PPP T[o֐ڑł܂B
     27.2 e-mail oł󂯂Ƃ܂B
     27.3 Ȃ̐l finger  WWW, gopherAtalk Ŏ̃}VɐڑłȂ̂ł傤B

  28. I IP ԍŃC^[lbg̊eT[rXgɂ
     28.1 e-mail ̐ݒ
     28.2 [Jȃl[T[o̐ݒ

  29. PPP T[o̐ݒ
     29.1 J[l̃RpC
     29.2 T[oVXe̊Tv
     29.3 \tgEFAW߂
     29.4 WI(VFoR)ڑB
     29.5 PPP ̃IvVt@C̐ݒ
     29.6 pppd [U(܂)悤ɐݒ肷
     29.7 pppd p̃GCAX̐ݒ

  30. PPP kf(VA)Ŏgɂ

  ______________________________________________________________________

  Copyright

  The copyright of this document is retained by the author.  Permission
  is granted to distribute the document by electronic means and  on CDs
  provided that it is kept entirely in its original format. Permission
  is also granted to print a copy of this document for personal use.

  The republishing of this document in part or in whole without the
  permission of the copyright holder by any means other than as noted
  above is prohibited.

  ̒̕쌠͒҂ێĂ܂B̒쌠\̂܂܎c
  Aǂ̂悤ȓdCIȕ@łA邢 CD pĔzz
  ܂B܂AlȎgpȂ΂̕vgAEg邱ƂF߂
  B

  LȊO̕@ɂ邱̈̕ꕔA邢͑Ŝ̍ĔzźA҂
  Ȃ֎~܂B

  zz

  ̓̕o[WVȂ邲Ƃcomp.os.linux.answersɓe
  ܂B܂AȉURLHTMLł\łB

  o  Linux Howto Index <http://sunsite.unc.edu/mdw/linux.html#howto>

  ̑̃tH[}bg(SGMLAASCIIApostscriptADVI) Howtos - other
  formats <ftp://sunsite.unc.edu/pub/Linux/docs/HOWTO/other-formats>
  ł܂B

  sunsite.unc.edu ͂˂ɍ׏ԂɂȂĂ܂̂ł߂̃~[TC
  g(Ⴆftp.hitachi.co.jp)pB

  ӎ

  ̕邽߂ɑ̐lXĂ܂B PPP ̂
  ̂ɂċĂꂽ Al Longyear(A̕ɊԈႢ
  ΁A͎̐ӔCł)ALinux Howto ̃eiXS Greg
  HankinsA linuxdoc-sgml pbP[W̐ݒĂꂽ Daniel
  Berinson(؂ 3 Ȃ)ÃX^CeAA_
  A̖mɂđ̏^Ăꂽ Debi
  Tackett(MaximumAccess.com)Ɋӂ܂B

   e-mail ł܂܂ȃRg̕Xɂӂ܂B
   HOWTO ̒ғlA̕菕ƂȂlX犴ӂ邱
  X̗B̕VłAŏ\Ȃ̂łB̕ƂŁA
  ܂߂SĂ Linux [U[ĂȂD OS 
  AeiXĂĂlXɑ΂؂łԂƂł
  ΁AƎvĂ܂B

  1.  Cg_NV

  PPP(Point to Point Protocol)̓VAڑ IP(Internet Protocol)
  ̑̃lbg[NvgR\zAғ邽߂̎dg݂łB
  PPP ̓kfoR̒VAڑ telnet A邢̓f
  ƓdboRڑ̏ł邱Ƃ\łBPPP g΂Ȃ
   Linux PC  PPP T[oɐڑÃT[oڑĂlbg[
  Nɂ(قƂ)ڂ̃lbg[NɐڑĂ邩̂悤
  gƂ\ɂȂ܂B

  ܂AȂ Linux PC  PPP T[oƂĐݒ肷΁ÃRs[
  ^dboRŐڑAȂ Linux PC /邢́Albg[
  NɃANZX邱Ƃ\łB

  PPP ͈Έ̒ʐMłAPPP g 2  Linux PC Ȃ
  ŁA 2 ̃lbg[Nڑ邱(邢̓[Jlbg[NC
  ^[lbgɐڑ邱)\łB

  PPP ƃC[Tlbgڑ̑傫ȈႢ̈̓Xs[hłBWIȃC[T
  lbgڑ̗_Iȍő]x 10Mbps(bSrbg)ł
  A PPP ̏ꍇAő̃fł 33.6kbps(1 b 1000 rbg)
  B܂APPP ڑ̌`ԂɂĂ͎gAvP[VT[rXɐ
  邱Ƃ܂B

  1.1.  NCAgƎgT[rX

  PPP ͌ȈΈ̃vgRłGȂ킿A(ZpIɂ)db
  ̃}VƎ󂯂鑤̃}VɈႢ͂܂BȂAb𕪂
  ₷邽߂ɃT[oƃNCAgƂʂtĎgƂɂ
  B

  db PPP ڑm鑤̃TCgNCAgƌĂсAڑ
  ̃}VT[oƌĂԂƂɂ܂B

  db󂯂 PPP ڑpӂ鑤 Linux }Vݒ肷ꍇAPPP
  T[oݒ肵Ă킯łB

  SĂ Linux PC  PPP ̃T[oɂNCAgɂȂ܂B̃V
  A|[g(ƕKvȂ΃f)΁Ã}VT[oƃNC
  AgɓɂȂ邱Ƃ\łBq̂悤ɁAPPP ڑĂ
  ΃NCAgƃT[o̊Ԃɂ͉̈Ⴂ܂B

  ̕ł͓db鑤̃}VNCAgƂAdb󂯂āA(
  [U[ ID pX[hA邢͂̑̎dg݂)[U[F؂
  ̃}VNCAgƌĂԂƂɂ܂B

  قƂǂ̐ĺAPPP NCAgŎgAC^[lbgɐڑĂ
  }Vɐڑ邱Ƃɋł傤B̏ꍇAނ PC N
  CAgƂĎgĂ킯łB

  ̕ɐĂ菇ɏ]΁AC^[lbgɎIɐڑ邱
  Ƃ\ɂȂ܂B

  āALinux PC  PPPT[oƂĐݒ肷@ɂĉA PPP 
  g 2  LAN (Sȃ[eBO)ڑ@ɂĂ
  ܂( WAN - Wide Area Network - ڑł悭@ł)B

  1.2.  fBXgr[VƂ̈Ⴂ

  ̒ɂ͂܂܂ Linux ̃fBXgr[VAꂼ
  Ǝ̕@Ă܂B

  Linux(Unix) }VNۂ̐ݒ@ƊẽC^[tFCX̐ݒ
  @ɂ́A傫 2 ̕@܂B

  BSD X^C̋N@łASystem V X^C̋N
  @łB Unix Ɋւj[XO[vɂȂȂ
  ΁A҂̊ԂɎƂċN鐹Ƃł傤B̎
  ̋c_ɋΎQĂ݂邱Ƃʔm܂B

   Linux łƂLgĂfBXgr[V̂A

  o  Slackware
      BSD X^C̋N@̗pĂA

  o  Red Hat (ƂɗR Caldera)
      SysV X^C̋N@̗pĂ܂B

  BSD X^C̋N@ł́ANp̃t@C /etc/... ɂAȉ
  悤ȃt@CɂȂĂ܂B

  ______________________________________________________________________
          /etc/rc
          /etc/rc.local
          /etc/rc.serial
  ______________________________________________________________________

  System V X^C̋N@ł́ANp̃t@C /etc/rc.d/... ɂ
  ÃTufBNgpӂĂ܂B

  ______________________________________________________________________
  drwxr-xr-x   2 root     root         1024 Jul  6 15:12 init.d
  -rwxr-xr-x   1 root     root         1776 Feb  9 05:01 rc
  -rwxr-xr-x   1 root     root          820 Jan  2  1996 rc.local
  -rwxr-xr-x   1 root     root         2567 Jul  5 20:30 rc.sysinit
  drwxr-xr-x   2 root     root         1024 Jul  6 15:12 rc0.d
  drwxr-xr-x   2 root     root         1024 Jul  6 15:12 rc1.d
  drwxr-xr-x   2 root     root         1024 Jul  6 15:12 rc2.d
  drwxr-xr-x   2 root     root         1024 Jul 18 18:07 rc3.d
  drwxr-xr-x   2 root     root         1024 May 27  1995 rc4.d
  drwxr-xr-x   2 root     root         1024 Jul  6 15:12 rc5.d
  drwxr-xr-x   2 root     root         1024 Jul  6 15:12 rc6.d
  ______________________________________________________________________

  C[TlbgC^[tFCX₻Ɋ֘Albg[ŇoH䂪
  ̂悤ɐݒ肳Ă邩𒲂ׂɂ́Ãt@C`FbNāA
  ۂɂsȂĂR}htKv܂B

  ̗ł(Ⴆ Red Hat  Caldera) X EBhEx[X PPP
  ݒc[tĂꍇ܂BȂA HOWTO 
  ́Â悤ȓ̃fBXgr[VɈˑc[̐͂
  B̃c[Ŗ肪ꍇ́AfBXgr[V̍쐬
  ɒڐq˂ĂB

  2.  IP ԍ

  C^[lbgɐڑSẴfoCX͓Ǝ IP ԍĂȂ
  ΂Ȃ܂BIP ԍǗ邽߂̑gD͊eƂɐݒuĂ
  B

  LAN oRăC^[lbgɐڑꍇA炩߂ LAN pɊ
  蓖Ăꂽ IP ԍ̒ALAN ɐڑĂSẴRs[^ƃf
  oCX IP AhXݒ肵Ȃ΂܂Bɝs IP ԍ
  g LAN (C^[lbg͌܂łȂ)ɐڑĂ͂܂B
  ň̏ꍇAPɓȂłȂAȂ́u񂾁v IP ԍA
  ̔ԍgĂRs[^̒ʐMƊđ卬炷\
  炠܂B

  ̒̕Ŏg IP ԍ(̗O)AC^[lbg
  ڑȂlbg[Npɂ炩ߗpӂĂԍ̒Ił
  邱ƂɒӂĂB

  C^[lbgɐڑĂȂ LAN pɗpӂꂽ IP ԍ͈ȉ̒ʂ
  łB

  o  Class A ̃AhX 1 
     10.0.0.0 - 10.255.255.255

  o  Class B ̃AhX 16
     172.16.0.0 - 172.31.255.255

  o  Class C ̃AhX 256
     192.168.0.0 - 192.168.255.255

  Ȃ̍ IP ԍ̊ǗgD IP ԍĂĂĂȂ (
  )LAN ɂ́A IP ԍ̒A̔ԍ肠ĂĎgĂ
  B

   IP ԍ̓C^[lbgɐڑĂfoCXɂ͌Ďg
  ͂܂BȂAC^[lbgɐڑĂ}Ṽ[J
  ȃC[TlbgC^[tFCXɊĂ邱Ƃ͉\łBȂȂAIP
  ԍƂ͎̂ۂɂ̓lbg[NC^[tFCXɕt̂łA
  Rs[^ɕt̂ł͂ȂłBłAC[TlbgC
  ^[tFCX (Ⴆ)10.0.0.1 łĂAPPP găC^[lbg
  ɐڑꍇAPPP C^[tFCXɕʂ(L) IP ԍT[o
  蓖ĂĂ炦΁APPP oRŃC^[lbgɐڑ邱Ƃ͉\łB
  ̏ꍇAȂ̃}V̓C^[lbgɐڑł܂ALAN ɐ
  ̃Rs[^͐ڑł܂B

  ȂALinux  ipfwadm \tg IP masquerade @\g΁A
  LAN ɐڑ̃}VC^[lbgɐڑ邱Ƃ\ɂȂ
  ܂(gT[rXɑ̐͂܂)B

  masquerade @\̏ڍׂɂĂ IP Masquerade mini-HOWTO(Linux IP
  Masquerade mini HOWTO <http://sunsite.unc.edu/mdw/HOWTO/mini/IP-
  Masquerade> B

  ũ}V PPP găvoC_oRŃC^[lbgɐڑ
  vƂقƂǂ̈ʃ[U[ɂƂẮAIP ԍ(萳mɂ̓lbg
  [Nԍ)Ɋ肠ĂĂ炤Kv͂܂B

  K͂ LAN C^[lbgɐڑꍇÃC^[lbg
  T[rXvoC_(ISP)A炩ߗpӂĂ IP ԍ̒
  p̃Tulbg(IP ԍ̓̑g)蓖ĂT[rXpӂĂ
  B

   PC  ISP oRŃC^[lbgɐڑ[Uɑ΂āAق
  ǂ ISP ͓I IP ԍ̊蓖ĂsȂĂ܂BȂ킿Aڑ
  ۂ ISP A̐ڑ̍ۂɂ̂ݗL IP ԍȂ PPP C
  ^[tFCXɊ蓖ĂAƂdg݂łB

  I IP ԍ̊蓖ċ@\̏ꍇA蓖Ă IP ԍ͐ڑ邽
  тɈقȂ܂B̏ꍇAT[o^CṽAvP[VAȂ킿
  sendmail  ftpdAhttpd Ȃǂ͂܂g܂BI IP ԍ̊蓖
  Ăɂ鐧ɂ(Ɖ\Ȕ͈͂ł̐ʂ@ɂ)
  ͌q܂B

  3.  ̖̕ړI

  3.1.  PPP NCAgݒ肷

  ̕ł Linux  PPP g PPP T[oɐڑAPPP g IP
  ڑ𒣂肽lɉ܂Bȉł̓J[l̍č\z PPP
  hCoRpCAȂ Linux }V PPP hCoCX
  g[Ă̂Ƃ܂(APPP hCog߂̃J[l
  ̐ݒ/RpC̕@ɂĂȒPɐ܂)

  3.1.1.  DIP ͎g킸 CHAT g

  DIP(SLIP ڑ𒣂邽߂̊{Iȕ@ł)g PPP ڑ邱
  \łADIP XNvg͊TĂ߂ĕGȂ̂ŁA̒̕
   DIP g PPP ڑ𒣂@ɂĂ͐܂B

  ̑A̕ł Linux PPP ̗pĂʓI chat/pppd g
  @܂B

  3.2.  PPP T[o̐ݒ

  ͂̕Ȃ Linux }V PPP T[o(̐lȂ Linux }
  VɓdbĂ PPP ڑ𒣂邱Ƃꍇ)ƂĐݒ肷
  @ɂĂ܂B

  Linux }V PPP T[oƂĐݒ肷@͉ʂ܂B̕
  ł(̂Ƃ)̂̈̕@݂̂܂B̕@͒
  ̏K͂ PPP T[oݒ肷邽߂Ɏĝł(ꂼ 16
  ̃fȂ܂)

  ̕@͂܂s͂łAKőP̕@ł͂܂B
  NƊȒPĂ PPP T[o̐ݒ@䑶młAЂ̕
  ̒҂ e-mail ŋĂB

  3.3.  2  LANA邢 LAN ƃC^[lbg PPP Őڑ@

  ̕ł PPP g 2  LAN ڑALAN C^[lb
  gɐڑ@ɂāA{Iȏ񋟂܂B

  3.4.  ̕ȂAA

  o  f Linux }Vɐڑݒ肷@(̏ڍ)
     Serial-HOWTO䗗B

  o  DIP g PPP ڑ𒣂@
      chat g܂B

  o  socks  IP masquerade ̎g
     ɂĂ͂ƂĂ悢ɗpӂĂ܂B

  4.  ̕ň\tgEFÃo[W

   HOWTO ł Linux 1.2.x  PPP 2.1.2 ̑gݍ킹A邢 Linux
  1.3.x/2.0  PPP 2.2 ̑gݍ킹OɂĂ܂B

  PPP 2.2.0  1.2.13 J[lƑgݍ킹邱Ƃ\łÂ߂
  ̓J[lɃpb`ĂKv܂B͂̂̕悤ȑgݍ
  ɂĂ͐܂B

  ܂ALinux 2.0.X V[ỸJ[l PPP 2.1.2 gƂ͂łȂ
  ƂɒӂĂB

  ̕ 2.0.x ̐V@\łs[h\W[Ɋւ
  ɂĂ͐܂BڍׂɂĂ kerneld mini-HOWTO  2.0.x 
  t̃J[lW[Ɋւ镶ǂł(Linux 2.0.x 
  \[Xc[ł /usr/src/linux/Documentation/..ȉ̃fBNgɊ
  A܂Ƃ߂Ă܂)B

  ͐̕V[U邱ƂӐ}ďĂ܂̂ŁA肵
  邱Ƃ悭mĂK؂ȃo[W Linux  PPP gƂ
  E߂܂B

  5.  ̗̑Lp/dvȕ

  ȉ̕ɂڂʂ邱Ƃ߂܂B

  o  PPP t̃hLg
     (/usr/doc.. ȉ̃fBNg)

  o  pppd  chat ̃}jAy[W
     (man chatAman pppd Ε\܂)

  o  Linux Network Administration Guide (NAG)
     on line łThe Network Administrators' Guide
     <http://sunsite.unc.edu/mdw/LDP-books/nag-1.0/nag.html>ł
     ܂B

  o  NET-2/3 HOWTO
     Linux NET-2/3-HOWTO
     <http://sunsite.unc.edu/mdw/HOWTO/NET-2-HOWTO.html>

  o  /usr/src/linux/Documentation ȉɂJ[lɊւ镶

  o  O'Reilly ołĂ Unix/Linux ɊւDꂽЁB (I
     C̃J^O <http://www.ora.com/>)܂BUnix/Linux ɂ
     ďS҂Ȃ΁A߂̏X܂őĂ(Ă̓_)
     肵ĂB

  Linux ̕ނɂẮAThe Linux Documentation Project Home Page
  <http://sunsite.unc.edu/mdw/>珉߂̂ł傤B[{ɖ|
  ꂽJF̕ <http://jf.gee.kyoto-u.ac.jp/JF/>H܂B]

  ̕ł PPP ڑgƂ͉\Ȃ͂łAL̕ɖ
  ʂΎۂɒŉsȂĂ邩ڂ邱Ƃł
  B܂AɂȂĂ邩m̂ɂ𗧂ł傤(ȂƂ
  comp.os.linux... ȉ̃j[XO[vłƌł͂
  )B

  L̕ł(֘A RFC Ȃǂ܂) HOWTO ł͕s\ȁAڂ
  񂪏ЉAڍׂȉȂĂ܂B

  PPP g LAN C^[lbgɐڑꍇATCP/IP lbg[N
  Ă̒mKvɂȂ܂BL̑̕ɁAO'Reilly  "TCP/IP
  Network Administration" "Building Internet Firewalls"ɗ
  傤B

  5.1.  Lp Linux ֘Ã[OXg

  Linux Ɋւ̂߂̃[OXg͂܂܂̃x̂
  ܂Bɂ͋[c_AuǂΌo[܂邱
  Ƃł傤B

  ҂ւ̈ꌾF̃[OXg͏㋉Ҍ̘b
  ȂĂ܂B̃[OXgɓĂAROM Ă邤͒N
  ܂񂪁AsK؂ȃ[OXgɁuS҂́v
  ƁAȂ茵Rg(t[ɂ͎ȂĂ)󂯂邱Ƃł
  BƂĂ guru level ̃[UuS҂́vĂ킯
  ͂ȂÃ[OXg̖ړI̘b̃xȏ
  l̊Ԃŋc_邽߂̂̂łB

  ƂɂJĂ郁[OXgɓĂ݂܂傤BłA
  [OXg̃e[}YȂB

  Linux ̃[OXgɂẮA Linux Mailing List Directory
  <http://summer.snu.ac.kr/~djshin/linux/mail-list/index.shtml>ɏڂ
  ЉĂ܂B

  6.  Linux J[l̐ݒ

  PPP g߂ɂ Linux J[l PPP @\g݂܂Ȃ΂Ȃ܂
  B܂J[l̃\[XR[h肵ĂȂ΁A\[XR[h
   Linux ̕WIȃ\[XR[h̃fBNgł /usr/src/linux
  ɒu܂傤B

  ̃fBXgr[VAI/usr/src/linuxfBNg
  \[Xc[(t@CTufBNg)CXg[̂ŁA܂
  ̃fBNg`FbNă\[XR[hCXg[ĂȂ
  `FbN܂傤B

  Linux ̃J[l\[X sunsite.unc.edu ₻̃~[TCg肷
  邱Ƃ\łB

  7.  Linux J[l\[X̃CXg[

  ȉLinux J[l̃\[XR[h肵ăCXg[邽߂̎菇
  ȒPɎ܂BڍׂȎ菇The Linux Kernel HOWTO
  <http://sunsite.unc.edu/mdw/HOWTO/Kernel-HOWTO.html>񂭂B

  LinuxJ[lCXg[ăRpCɂ̓[gKv
  B

  1. /usr/src fBNgֈړ
     cd /usr/src

  2. /usr/src/linux ȉɃ\[XCXg[ĂȂmF

  3. \[XR[hLinux kernel source directory
     <ftp://sunsite.unc.edu/pub/Linux/kernel/v2.0>肵܂

     [ł͖LZpȊww
     <ftp://ftp.tut.ac.jp/pub/Linux/kernel/v2.0>ŐṼJ[l
     ł܂B]

     (1.2.X Ȃǂ)ÂJ[lTĂꍇAÂJ[lA[JCu
     <ftp://sunsite.unc.edu/pub/Linux/kernel/old>TĂB

  4. KȃJ[lI - ʏA2.0.xV[Y̍ŐṼJ[lIт
     傤B_E[htar t@C /usr/src ɒu܂B

     ӁFLinux ̃J[l\[Xɂ͑̃t@C܂܂ȃfBN
     gɊi[Ă̂ŁA'tar' t@C͂畡̃t@C
     Ƃ߂t@CɂȂĂAʏ툳k(gq .gz)܂Btar
     t@C͂傤 DOS  zip t@Ĉ悤Ȃ̂łB
  5. łɃ\[XR[hCXg[ĂĐV̂ɍXV
     A܂Â\[XR[h폜ĂBȉ̃R}hs
     ܂B

     rm -rf /usr/src/linux

  6. Ɉȉ̃R}hŃ\[XR[hWJ܂
     tar xzf linux-2.0.6.tar.gz

  7.  cd /usr/src/linux README t@CǂłB
     t@Cɂ͂ǂ̂悤ɃJ[l̋@\ݒ肵ăRpC邩
     Ă܂̂ŁA܂̃t@CǂނƂ߂܂(
     vgAEgĎ茳ɒuĂ̂ł傤BJ[lR
     pCۂɂ͂Ȃ莞Ԃ̂ŁÅԂ README 
     ǂł݂܂傤)

  8.  n[hEFAɂ

  J[lăRpC邽߂ɂ́AȂ PC ɑg݂܂ĂJ[
  hfoCXɂĒmĂKv܂B̃foCX(Ⴆ
  ΃TEhJ[h)ł͂ڂݒ(IRQ  I/O AhXȂ)mĂ
  Kv܂B

  9.  J[l̃RpC - Linux 1.2.13 ̏ꍇ

  ݒvZXn߂ۂɂ́ACXg[𐳂s߂ README t@
  C̎wɏ]ĂBJ[l̐ݒ

       make config

  Ŏn߂܂B

  PPP g߂ɂ PPP @\J[lɑg݂ނ悤ɐݒ肵܂(PPP 
  pppd ƃJ[lɑg݂܂ꂽ PPP hCȏoKvł)B

  ______________________________________________________________________
    PPP (point-to-point) support (CONFIG_PPP) [n] y
  ______________________________________________________________________

  ̑̐ݒ́AȂ PC ɑg݂܂ꂽn[hEFAg Linux
  ̋@\ɍđIĂBɁAREADME ɏ]ăRpCAV
  J[lCXg[܂B

  1.2.13 J[lł 4  PPP foCX܂B}`|[gV
  AJ[hgꍇAJ[l PPP hCõ\[XCāA
  葽̃|[gg悤ɂĂ(KvȏC̏ڍׂɂĂ
  PPP-2.1.2 t README.linux ɐĂ܂)B

  ӁF1.2.13  make config ̐ݒ͌ɂ͖߂܂BłAԈႦ
  ꍇ CTRL C ďIAēxn߂ݒ肵ĂB

  9.1.  J[l̃RpC - Linux 1.3.x  2.0.x ̏ꍇ

  2.0.x ł 1.2.13 Ɠl̎菇ɂȂ܂B̏ꍇA\[X𐳂C
  Xg[ɂ README t@C̎wɏ]ĂBJ[l̐
  

       make config

  Ŏn߂܂B

  2.0.x ł

       make menuconfig

  g܂B

  make menuconfig ̓j[x[X̐ݒVXeŁAICwvp
  ӂADȂƂ납ݒ肷邱Ƃ\łB

  X EBhEx[X̐ݒVXeł

       make xconfig

  gƂ\łB

  PPP @\͒ڃJ[lɑg݂ނƂł܂As[hW[
  ƂăRpC邱Ƃ\łBPPP ĝ͂ꂽԂ
  AƂꍇ PPP @\̓W[ƂăRpC
  傤B'kerneld' g PPP ڑJn悤ƂۂɎI PPP
  ڑɕKvȃW[g݂ނƂł܂BĂ΃
  Ԃߖł܂FJ[l{̂XbvAEg邱Ƃ͂
  ܂񂪁A'kerneld' g݂񂾎s[hW[́AKv
  ΎIɎ͂܂B

  kerneld g߂ɂ́AI[hW[gp\ɂ܂B

  ______________________________________________________________________
          Enable loadable module support (CONFIG_MODULES) [Y/n/?] y
  ______________________________________________________________________

  PPP @\J[lɑg݂ޏꍇAȉ̐ݒ܂B

  ______________________________________________________________________
          PPP (point-to-point) support (CONFIG_PPP) [M/n/y/?]
  ______________________________________________________________________

  PPP W[ɂꍇMƓ܂BJ[lɑg݂݂ꍇY
  ƓĂB

  1.2.13 Ƃ͈قȂA2.0.x ̃J[lł PPP foCX͕KvɉēI
  ɍ쐬̂ŁAPPP foCX̐ɊւCsKv͂܂
  B

  9.2.  PPP-2.2  /proc/net/dev ɂ

  PPP-2.2 gĂꍇAfoCXIɍ쐬@\̕pƂ
  āA pppd N܂ł /proc/net Ă PPP foCX͌
  

  ______________________________________________________________________
  [hartr@archenland hartr]$ cat /proc/net/dev
  Inter-|   Receive                  |  Transmit
   face |packets errs drop fifo frame|packets errs drop fifo colls carrier
      lo:  92792    0    0    0    0    92792    0    0    0     0    0
    eth0: 621737   13   13    0   23   501621    0    0    0  1309    0
  ______________________________________________________________________

  ȂA PPP T[rXJn΁AKvȃfoCX͈ȉ
  ̂悤Ɍ悤ɂȂ܂(̉^pĂ ppp T[o̗ł)

  ______________________________________________________________________
  [root@kepler contrib]# cat /proc/net/dev
  Inter-|   Receive                  |  Transmit
   face |packets errs drop fifo frame|packets errs drop fifo colls carrier
      lo: 428021    0    0    0    0   428021    0    0    0     0    0
    eth0:4788257  648  648  319  650  1423836    0    0    0  4623    5
    ppp0:   2103    3    3    0    0     2017    0    0    0     0    0
    ppp1:  10008    0    0    0    0     8782    0    0    0     0    0
    ppp2:    305    0    0    0    0      297    0    0    0     0    0
    ppp3:   6720    7    7    0    0     7498    0    0    0     0    0
    ppp4: 118231  725  725    0    0   117791    0    0    0     0    0
    ppp5:  38915    5    5    0    0    28309    0    0    0     0    0
  ______________________________________________________________________

  9.3.  J[lݒ̂̑̐ݒɂ

  Ȃ Linux }V PPP T[oƂĐݒ肷ꍇAIP tH[[h
  @\g݂łKv܂BIP tH[[h@\́A LAN
  ڑꍇ LAN C^[lbgɐڑꍇKvłB

  LAN C^[lbgɐڑꍇ(邢 2  LAN ڑ
  )AZLeBɂĒӂȂ΂Ȃ܂BJ[l IP t@
  CA[EH[̋@\g݂ނƂK{łB

  ȑOɏqׂ悤ɁAlbg[Np IP ԍgĂlbg
  [NC^[lbgɐڑꍇAIP masquerade ̋@\KvɂȂ
  ܂B

  RpCJ[lCXg[čċN΁APPP ڑ̐ݒ
  eXg\ɂȂ܂B

  10.  PPP ڑ邽߂ɕKvȏ

  T[o PPP ڑۂɂ͈ȉ̏񂪕KvɂȂ܂(PPP T[õVX
  eǗ҂ ISP ̃[UT|[gɖ₢킹Ă)

  o  PPP T[rXĂdbԍ
     ЂȂǂ̍\ڑꍇAO֐ڑ邽߂̓ԍ
     KvłB͂Ă 0  9 ɂȂĂł傤B

  o  T[oI IP ԍ̊蓖ĂsȂĂ邩炩ߌ߂
      IP ԍgĂ邩

     PPP ڑɂ炩ߌ܂ IP AhXg悤ɂȂĂ
     A PPP ̐ڑ̍ۂɎg IP ԍKvɂȂ܂B

     قƂǂ ISP ł͓IȊ蓖ĂsȂĂ͂łBq̂悤
     ɁAIȊ蓖Ă̏ꍇAp\ȃT[rXɂ̐
     ܂B

  o  炩ߌ܂ IP ԍgꍇAlbg[N}XNKvɂ
     ̂ ISP ɖ₢킹ĂĂB

  o  ISP ̃l[T[o(Domain Name Servers)IP ԍ́H
     l[T[õAhXŒ 1 ͕KvłB

  o  T[o PAP/CHAP F؂gĂ܂H

     ̂悤ȏꍇAڑɂ͔F؂ɕKv ID ⌮(secret)KvƂȂ
      (ʏ͂Ȃ̃[U[ƃpX[hg܂)

  o  ڑ΃T[oI PPP ڑJn̂AU login 
      PPP N邽߂̃R}hKvɂȂ̂H
     PPP N邽߂̃R}hKvȂ΁ÃR}h́H

  ̏ƃĂɐi݂܂傤B

  10.1.  foROւ̐ڑeXg

  fݒ肳ĂAǂ̃VA|[gɂȂĂ邩m
  FĂB

  Ăȉ̂悤ɂȂ܂

  o  DOS com1: = Linux /dev/cua0 ( /dev/ttyS0)

  o  DOS com2: = Linux /dev/cua1 ( /dev/ttyS1)
     X

  xAʐM\tg(minicom ̂悤)gāAPPP T[o̓dbԍɐ
  ANZXł邩mFĂ݂܂傤B

  (ӁF̒iKł͂܂ PPP ڑĂ͂܂ - dbԍ
  APPP ڑn߂邽߂ɃT[oڑɂǂ̂悤ȃbZ[W𑗂
  Ă邩𐳊mɒm邱Ƃdvł)

  ̒iKł́AʐM\tg̃O@\gĐڑߒt@CɗA
  Ӑ[(߂ĒӐ[)AT[oǂ̂悤ȃvvgĂ
  āAǂ̒iKŃ[UƃpX[h͂Ȃ΂Ȃ(PPP 
  sȂ߂ɕKvȃR}h)mɏʂĂ

  ȂƂ 2 ͓dbĂł傤BT[oɂĂ
  ڑ̍ۂɃvvgςꍇ(ႦΎԂ\Ȃ)܂B
  Ȃ Linux }VΒmĂȂ΂ȂȂ 2 ̏dvȃv
  vg

  o  [U邽߂̃vvg;

  o  pX[h邽߂̃vvg;

   2 łB

  T[o PPP N邽߂ɉ炩̃R}hKvȏꍇAڑĂ
  炻̃R}hsۂ̃vvgmĂ˂΂Ȃ܂B

  ڑ̃T[oI PPP ڑJnꍇA̓dbԍɃOC
  ƉʂɈӖsȕ񂪕\͂łB PPP T[
  oȂ̃}V PPP ڑJnĊe̐ڑs߂ɑĂ
  łB

  ͈̕ȉ̂悤Ȍ`ɂȂĂ܂B

       ~y}#.!}!}!} }8}!}$}%U}"}&} } } } }%}& ...}'}"}(}"} .~~y}

  (ĂƗ܂I)

  ̒iKŃf̐ڑ؂܂傤(ʏA+++ f͂AATHO R
  }h𑗂΁Af͉ؒf OK Ԃ͂ł)

  ̃VXeł̓T[oɃOCĂ PPP 𖾎IɋN
  Kv܂BʏA PPP łʏ̃VFł[UƃpX
  [hŐڑł悤ɂȂĂꍇɂ̂悤Ȑݒ肪Ă͂
  łB̂悤ȏꍇAUOCĂKvȃR}hsĂ݂
  BƁAT[oĂӖs PPP ڑN̂߂̕
  ʂɕ\͂łBmFؒf܂傤B

  T[o PPP ڑJnĂAʂɂ̎̕񂪕\Ȃ
  A(΂ł͂܂)ȂԈĂ͂łB

  ƁAڑ PPP T[opbVu[h(M)Őݒ肳Ă
  ̂m܂BpbVu[hŐݒ肳ĂT[o̓NCAg
  (Ȃ̃Rs[^)̑ PPP ڑJnȂƉԂ
  B

  ȂAقƂǂ̃T[o̓ANeBu[h(M)Őݒ肳Ă
  AڑΈӖs̕񂪕\͂łB

  fȂꍇA܂fɕt̃}jAǂ݂܂
  BɁAgĂʐM\tg̃}jA Serial HOWTO ɖڂʂ
  B̌AL̉ߒēxĂ݂ĂB

  11.  VA|[gƂ̃Xs[hɂẴ

  (Ot)f(14,400 Baud ȏ)gĂꍇAVA|[g
  fȏ̓]xŃf[^Ƃ肷Kv܂BɃf
  f[^k@\gĂꍇAVA|[gɑxv܂B

  ̂߂̃VA|[gɂ́A16550(A) ƂV UART(Universal
  Asynchronous Reveiver Transmitter)gKv܂BÂ}V(
  邢͌ÂVAJ[h)gĂꍇAUART  8250 ɂȂĂ邱
  Ƃ͂łB8250 UART ł͍ȃfgƂƖ
  ƂɂȂ܂B

  mFɂ

       setserial -a /dev/ttySx

  Ă݂ĂB

  ƁAgĂ UART ̎ނ\܂B16550A ^Cv UART
  gĂȂꍇAVVAJ[hwł傤
  ($50 ȉœł͂ł)

  ӁFo[W 16550 UART `bvɂ̓oO܂B͑
  ɔAǔł 16550A UART `bv[X܂BA
  ̂`bvłsɏo܂Ă悤łB
  `bvɑ邱Ƃ͖Ǝv܂AɔNヂm̃VAJ[h
  ꍇAsetserial  16550A gĂ邱ƂmFĂB

  12.  f̐ݒ

  PPP 烂fg悤ɐݒ肷Kv܂B̂߂ɂ f
  ɕt̃}jAǂłBقƂǂ̃f͍Ho׎̐
   ̂܂܂ł PPP g͂łBŏKvȐݒ́A

  o  n[hEFAt[Rg[(RTS/CTS) (Hayes ñR}h̗p
     Ă鑽̃fł &K3ł)

  łB

  ̑A`FbNݒ(WI Hayes R}hŎ܂)

  o  E1 R}h Echo  ON (chat ɕKv)

  o  Q0 R}hŃUgR[hԂ悤(chat ɕKv)

  o  S0=0 Ŏ OFF (fdbɓꍇ͕sv)

  o  &C1 ŐڑɃLAfeNg ON ɂȂ悤

  o  &S0  DSR  ON ɂȂ悤

  o  (@ɂĈႢ܂) DTR  ON ɂȂ悤

  Rs[^ƃfڑ镔̃f̃VAC^[tFCX
  ǂȂĂ邩`FbNĂ̂LvłBĂ̐Vf
  ł̓VAC^[tFCX̑x͌ŒɂȂĂAdb̓]
  x͉̏ԂɂĎIɐڑ\ȍōɂIԂ悤ɂȂĂ
  ͂łB

  ̕@ split speed operation ƌĂ΂Ag̃f̋@\
  ĂꍇAf̃VAC^[tFCX͍ōxɌŒ肵Ďg
  ̂ł傤(ʏ 115,200 baud łA14,400 baud fł
  38,400 ܂ł̏ꍇ܂)

  ʐM\tg(Ⴆ minicom)gāAf̐ݒmFAPPP ɕKv
  ݒsȂĂB̃f AT&V Ō݂̐ݒԂԂ悤
  ɂȂĂ܂AmȂƂ̓f̃}jAQƂĂB
  ݒ肪S`S`ɂȂĂ܂ꍇAĂ AT&F ōHo׎̐
  ɖ߂܂(Vfł͍Ho׎̐ݒ̂܂܂ PPP 
  g܂A`FbNĂ݂邱Ƃ߂܂)B

  s RAM ɐݒۑ܂(ʏAAT &W Őݒۑ܂A
  ׂ̓f̃}jA䗗)

  ݒۑĂ΁AfZbg΂̐ݒ肪p
  悤ɂȂ܂BĂ PPP ڑ𒣂ۂ chat XNvg
  ƊȒPɂȂł傤B

  12.1.  VA|[g̃t[ɂ

  f[^VAʉ߂ہARs[^̏xf[
  ^͂ꍇ܂(Rs[^ʂ̏ddĂꍇȂǁB
  Linux ̓}`[U[A}`^XN OS ł)B̂悤ȏꍇłf[
  ^Ȃ(̓obt@f[^ȂΖȂ܂)悤
  ɂ̓f[^̃t[䂪KvɂȂ܂B

  VÃt[ɂ 2 ̕@܂B

  o  n[hEFAt[(f[^]̍ۂ Send/Request NA -
     CTS/RTS)

  o  \tgEFAt[(control S  control Q g)

  ʏ̃eLXg\p̃^[~iȂΌ҂̕@ł\܂񂪁APPP
  ڑ̏𗬂f[^ 8 rbgSĂgĂ̂ cntl-S  cntl-Q
  f[^̂ǂɌ\͂Ȃ荂Ȃ܂BłAf
  \tgEFAt[gĂꍇAɐs\ɂȂ܂B

  8 rbgSĂg PPP ڑł̓n[hEFAt[䂪K{łB

  13.  PPP ƃ[g

  PPP ł̓J[l̃[eBOe[u̕ύXƂlbg[NfoC
  Xݒ肷Kv邽߁A[gKvɂȂ܂B

  [gȊÕ[U PPP ڑݒ肷ꍇApppd vO̓[g
  setuid ĂKv܂B

       -r-sr-xr-x   1 root     root        95225 Jul 11 00:27 /usr/sbin/pppd

  /usr/sbin/pppd ̂悤ȐݒɂȂĂȂꍇA[gɂȂ

       chmod u+s /usr/sbin/pppd

  Ƃ܂B

  Ă΁A[gȊÖʃ[U pppd ̃oCisĂA
  pppd ̓[gœ悤ɂȂAʃ[Ułlbg[NC^[
  tFCXJ[l̃[eBOe[uݒ肷邽߂ɕKvȌ
  pppd s邱Ƃ\ɂȂ܂B

  [g setuid ꂽvO͐ݓIȃZLeBz[ɂȂ肪
  Ȃ̂ŁA[g setuid ꍇ͓ɒӂĂBpppd ܂߂
  [g setuid 邱ƂK{̃vO̓ZLeBɂ͏\ӂ
  ďĂ̂ŁApppd gꍇAsetuid ̖͂܂v
  傤(ۏ؂͂܂)

  Nł PPP ڑJnł悤ɂ邩ۂƂVXe̎g
  킹āAppp-on/off XNvg̓ǂݏos̋ݒ肵Ă
  BȂl PC gȂꍇAa+rx łł傤B

  APPP ڑJnłl𐧌ꍇ(Ⴆ΁AȂ̎q
  Ȃ Linux }VɃAJEgĂ邯ǁAނɂ̓C^[
  lbg֐ڑȂꍇ)APPP ڑp̃O[v(/etc/group
  C)

  o  ppp-on/off XNvg[g PPP O[v̏LɂA

  o  ppp-on/off XNvg̓ǂݏoƎs PPP O[vɂ̂
     ^܂B

         -rwxr-x---   1 root     PPP           587 Mar 14  1995 /usr/sbin/ppp-on
         -rwxr-x---   1 root     PPP           631 Mar 14  1995 /usr/sbin/ppp-off

  o  ȊŐ͗Ă܂B

  o  PPP sł郆[Û݂ /etc/group C PPP O[vɓo
     ^܂B

  ̂悤ɐݒ肵ĂAʃ[U̓\tgEFAIɂ PPP ڑ؂
  Bppp-off XNvgɂ̓[gKvłBȂAf
  ̓d͒Nł؂܂I

  ƂŎgĂ}Vł pppd  root  setuid Ă܂B PPP
  Jn邽߂ɁAmĂpX[hgă[gɂȂĎ
  sĂ܂BĂΑqC^[lbgɏɐڑ邱
  Ƃ͂ł܂B

  14.  PPP ڑpݒt@C

  PPP Nłg悤ɐݒ肵ĂꍇłA̓[g
  login ĂBPPP ڑɕKvȃfBNgAݒt@C
  C܂B

  PPP  ppp ڑݒ肷邽߂ɂ̐ݒt@C𗘗p܂B
  ̃t@C̏ꏊ▼O PPP 2.1.2  2.2 ̂őقȂĂ܂B

  PPP 2.1.2 ̏ꍇAKvȃt@C

  ______________________________________________________________________
  /usr/sbin/pppd          # pppd ̃oCi
  /usr/sbin/ppp-on        # _CA/ڑpXNvg
  /usr/sbin/ppp-off       # ڑIpXNvg
  /etc/ppp/options        # pppd SĂ̐ڑ̍ۂɎgIvV
  /etc/ppp/options.ttyXX  # |[gƂɎgIvV
  ______________________________________________________________________

  łB

  PPP 2.2 ̏ꍇA

  ______________________________________________________________________
  /usr/sbin/pppd                          # pppd ̃oCi
  /etc/ppp/scripts/ppp-on             # _CA/ڑpXNvg
  /etc/ppp/scripts/ppp-on-dialer  # ۂ chat XNvg
  /etc/ppp/scripts/ppp-off            # ڑIpXNvg
  /etc/ppp/options                # pppd SĂ̐ڑ̍ۂɎgIvV
  /etc/ppp/options.ttyXX  # |[gƂɎgIvV
  ______________________________________________________________________

  ɂȂĂ܂B

  䗗̂悤ɁA/etc fBNg ppp p̃fBNg܂B

  drwxrwxr-x   2 root     root         1024 Oct  9 11:01 ppp

  ̃fBNg΍ĂB

  ̃fBNg݂Ă΁Aoptions.tpl ƌĂ΂IvVݒ
  t@C̃qi^t@C͂łBÃt@C܂ł
  ȂfBXgr[V悤Ȃ̂ŁÃt@C͂̕
  ܂߂Ă܂B

  ̃t@Cɂ PPP ̑SăIvV̐Ă̂ŁAło
  Ă܂傤(pppd ̃}jAēǂ߂΂Lvł)B
  t@C /etc/ppp/options t@ČƂĎgƂł܂A
  RgAEgĂ镔폜Vt@C쐬
  ł傤BƒZȂāAǂ݂₷AeiX
  ₷Ȃ܂B

  ̃VA⃂fgꍇ(PPP T[oɂ悭ꍇ)AŜ
  ݒt@Cł /etc/ppp/oprions ɂ͑SĂ̓db󂯂VA|[
  gɕKvȃIvVw肵܂BPPP ڑ̂߂Ɍʂ̐ݒ̕KvȃV
  Aɂ͕ʓrʐݒp̃t@C܂B

  ʐݒp̃t@C options.ttyx1  options.ttyx2 Ƃ̂
  ȂĂ܂(x ͂g̃VA|[ĝ̖ł)

  PPP ڑgȂꍇASĂ /etc/ppp/options t@CŐݒ
  Ă\܂B܂ASẴIvV pppd Nۂ̃IvV
  ƂĎw肷邱Ƃ\łB

  ̕ /etc/ppp/options.ttySx Ɏw肷ȒPłBPPP ŕ
  قȂTCgɐڑꍇATCgƂ̐ݒt@C
  /etc/ppp/options.site pӂAڑ̍ۂɕKvȃp[^ݒt@C
  Ɏw肷邱Ƃ\łB

  14.1.  options.tbl t@C

  PPP ̃fBXgr[VɂĂ options.tpl t@Cꍇ
  ܂̂ŁAȉɊSȃt@CtĂ܂B̃t@C
  ڏC /etc/ppp/options t@CȂǂ炸AVt@CɃR
  s[ĂC邱Ƃ߂܂BĂΐݒ肪񂪂
  ĂIWĩt@Cɖ߂čďoł܂B

  ______________________________________________________________________
  # /etc/ppp/options -*- sh -*- general options for pppd
  # created 13-Jul-1995 jmk
  # autodate: 01-Aug-1995
  # autotime: 19:45

  # s\ȃvOVFXNvggăVAݒ肵܂B
  # ̃XNvgł "chat" găf_CAڑ PPP
  # ZbVNĂ܂B
  #
  #connect "echo You need to install a connect command."

  # pppd ڑ؂ɎsvOVFXNvgw肵
  # BႦ΁Afn[hEFAMŉfȂꍇȂǂɁA
  # ڑ邽߂̃R}hs邱Ƃł܂B
  #
  #disconnect "chat -- \d+++\d\c OK ath0 OK"

  # 32-bit hex ł async LN^}bv̎wB32 rbg̊erbg
  # pppd M̍ۂɂ̃LN^GXP[v邩ǂw肵܂B
  # 0x00000001  \x01, 0x800000000  \x1f ܂B
  #asyncmap 0

  # lbg[Np̃pPbgƂ肷OɐڑɔF؂߂܂B
  #
  #auth

  # VA|[g̃t[Ƀn[hEFAt[g܂B
  #
  #crtscts

  # XON/XOFF Ƃ\tgEFAt[g܂B
  #
  #xonxoff

  # IPCP ̃lS[VGV܂ꍇAڑQ[gEFCɂ
  # 悤ȌoH(default route)VXěoH\ɉ܂B̌o
  # H PPP ڑIiKō폜܂B
  #
  #defaultroute

  # `ɓ̃LN^GXP[v܂(ڑ悪̃LN^
  # async control character map Ŏw肵Ă邩ۂɂ炸)BGXP[
  # vLN^̓R}ŋ؂ 16 i\LŎw肵܂Basyncmap I
  # vVł̓Rg[R[hGXP[vłȂ̂ɑ΂ escape I
  # vVł͂LN^GXP[vł邱ƂɒӂĂB
  # GXP[vłȂmȂLN^ 0x20 -0x3f  0x5e łB
  #
  #escape 11,13,ff

  # f̐g܂B
  #
  #local

  # pppd  UUCP X^C̃bNt@CāÃvOVA
  # foCXANZXȂ悤ɂ܂B
  #
  #lock

  # f̐𑀍삵܂BUltrix ł͂̃IvV crtscts IvV
  # Ɠn[hEFAt[܂݂܂(̃IvV͊SɎ
  # Ă킯ł͂܂)
  #
  #modem

  # ڑMRU[Maximum Receive Unit]̒l <n> ɂ悤ɑk܂B
  # ̎wɂڑ <n> oCgȉ̃pPbg͑Ȃ悤Ɏw肵
  # ܂BMRU ̍ŏl 128 ŁAftHgl 1500 łBxł
  # 296 𐄏܂(TCP/IP ̃wb_ 40 oCg + f[^ 256 oCg)
  #
  #mru 542

  # C^[tFCX̃lbg}XN <n> Ɏw肵܂Bw 32 rbg
  # hbgŋ؂ 10 i\Lł(F255.255.255.0)
  #
  #netmask 255.255.255.0

  # ̑ IP AhXw肵ȂꍇAftHgł̓zXg
  # IP AhX肵܂ÃIvVw肷Ύ̑ IP A
  # hX肹Aڑ悩 IPCP ̃lSVG[V̍ۂɑĂ
  # IP AhX[J IP AhXɂ܂(R}hCIvV
  # t@CŖIɃ[J IP AhXw肷邱Ƃ\ł)
  #
  #noipdefault

  # LCP  "passive" IvV\ɂ܂B̃IvVw肷
  # ΁Apppd ͎IɐڑJn悤Ƃ܂B̃IvVw肵
  # Ɛڑ悩̕ԓȂꍇ pppd ͏I܂ÃIvV
  # w肷Ύ󓮓IɗL LCP pPbg͂܂ő҂ƂɂȂ܂B
  #
  #passive

  # ̃IvVw肷΁Aڑ悩琳 LCP pPbg͂܂
  # pppd ͐ڑJn邽߂ LCP pPbg𔭐M܂(Âo[W
  #  pppd  "passive" IvV̓w肵܂)
  #
  #silent

  # LCP  IPCP ɓʂ̃IvVg܂(ftHĝ݂̂̂g
  # ܂)
  #
  #-all

  # Address/Control kɊւlSVG[V܂(ftHgA
  # Ȃ킿Aaddress/contro tB[h͎gȂݒɂȂ܂)
  #
  #-ac

  # asyncmap ̃lSVG[V܂(ftHg asyncmap, Ȃ킿
  # SẴRg[LN^GXP[vݒɂȂ܂)
  #
  #-am

  # fork ăobNOEhvZXɂȂ܂(̃IvVw肵
  # ƁAVAfoCXw肵Ă pppd ̓obNOEhɓ܂)
  #
  #-detach

  # IP AhX̃lSVG[V܂(̃IvVw肷ꍇA
  # ڑ IP AhX̓R}hCIvVt@CŎw肵Ȃ
  # ΂܂)
  #
  #-ip

  # }WbNio[̃lSVG[V܂B̃IvVw肷
  # ƁApppd ͉[vobNԂɂȂĂĂoł܂B
  #
  #-mn

  # MRU[Maximum Receive Unit]̃lSVG[V܂(ftHglł
  #  1500 g܂)
  #
  #-mru

  # vgRtB[hk邩ǂ̃lSVG[V܂(f
  # tHgł̓vgRtB[h͈k܂)
  #
  #-pc

  # ڑ PAP F؂g悤Ɏw肵܂B
  #
  #+pap

  # PAP F؂gƂɓӂ܂B
  #
  #-pap

  # ڑ CHAP[Cryptographic Handshake Authentication Protocol]g
  # 悤ɗv܂B
  #
  #+chap

  # CHAP gƂɓӂ܂B
  #
  #-chap

  # Van Jacobson  IP wb_̈kɂẴlSVG[V܂
  # (ftHgł͈kȂݒɂȂĂ܂)
  #
  #-vj

  # fobOxグ܂(-d Ɠ)̃IvVw肳ƁApppd
  # ͑MSĂ̐ppPbg̓elԂɓǂ߂`ŋL^܂B
  # ̏̓t@CɃ_CNgA/etc/syslog.conf ŖIɂǂ
  # t@Cɑ邩w肵܂(ڍׂ syslog.conf(5))(pppd ڍׂ
  # fobOł悤ɃRpCɐݒ肳ĂꍇA daemon
  # ł͂Ȃ local2 ̋@\gċL^܂B
  #
  #debug

  # F؂̂߂̃[J̃zXg <d> ƂhCɂ܂B
  # gethostname()  porsche ƂzXgԂAۂ̃hC
  # porsche.Quotron.COM ̏ꍇAQuotron.COM w肷邽߂ɂ̃IvV
  # w肵܂B
  #
  #domain <d>

  # J[lɑg݂܂ꂽ PPP hCõfobOx <n> ɂ܂Bn
  # ͈ȉ̒l𑫂킹ʂɂȂ܂F1 ʓIȃfobObZ[WA
  # 2: 󂯂ƂpPbg̒ĝvg\Ȃ̂L^A4: M
  # pPbĝAg̃vgAEg\Ȃ̂L^B
  #
  #kdebug n

  # MTU̒l <n> ɂ܂Bڑ悩 MRU ̒lƂĂ菬Ȓlw肳
  # ȂA̒lȉ̃pPbg PPP lbg[ÑC^[tFCX
  # ֑Ȃ悤AJ[l̃lbg[NR[hɎw肵܂B
  #
  #mtu <n>

  # FؗpɎ̃VXe̖O <n> ɂ܂B
  #
  #name <n>

  # PAP ŔF؂ڑpɁA茳̃}VgĂ郆[U[̖O <u>
  # ɂ܂B
  #
  #user <u>
  # FؗpɃ[JVXê̖zXgɂ܂(name IvV𖳌
  # ɂ܂)
  #
  #usehostname

  # FؗpɃ[g̃VXe <n> ɂ܂B
  #
  #remotename <n>

  # [JVXe ARP[Address Resolution Protocol]e[uɐڑ
  # IP AhXƂ̃VXẽC[TlbgAhXǉ܂B
  #
  #proxyarp

  # PAP ̔FؗpɃVXẽpX[hf[^x[Xg܂B
  #
  #login

  #  n bƂɁAڑ LCP echo-request ̃t[𑗂܂BLinux
  # ̏ꍇAڑ悩 n bԃpPbg͂Ȃꍇ echo-request 𑗂
  # ܂BʏAڑ echo-request ͂ echo-reply Ԃ܂B
  # IvV lcp-echo-failure IvVg݂킹āAڑ؂Ă
  # 邱ƂmFł܂B
  #
  #lcp-echo-interval <n>

  # LCP echo-request  n ĂԓꍇAڑ؂Ă
  # ̂ƌȂ pppd ڑI܂B̃IvVgꍇA
  # lcp-echo-interval  0 ȊO̒lw肵ĂKv܂B̃Iv
  # Vg΁Af̐𒲂ׂȂꍇłIȐڑ؂
  # (fnOAbv) PPP ڑI邱Ƃł܂B
  #
  #lcp-echo-failure <n>

  # LCP ̍đԊu n bɂ܂(ftHg 3 bł)
  #
  #lcp-restart <n>

  # LCP terminate-request ő n 悤ɂ܂(ftHgł 3)
  #
  #lcp-max-terminate <n>

  # LCP configure-request ő n 悤ɂ܂(ftHgł 10)
  #
  #lcp-max-configure <n>

  # LCP configure-NAK  n 󂯂Ƃ configure-Reject 𑗂悤ɂ
  # (ftHgł 10)
  #
  #lcp-max-failure <n>

  # IPCP ̍đԊu n bɂ܂(ftHgł 3)
  #
  #ipcp-restart <n>

  # IPCP teriminate-request ő n 悤ɂ܂(ftHgł 3)
  #
  #ipcp-max-terminate <n>

  # IPCP configure-request ő n 悤ɂ܂(ftHgł 10)
  #
  #ipcp-max-configure <n>

  # IPCP configure-NAK  n ܂Ŏ󂯂Ƃ configure-Rejects 𑗂悤
  # ɂ܂(ftHgł 10)B
  #
  #ipcp-max-failure <n>

  # PAP F؂ĊJ܂ł̎Ԃ n bɂ܂(ftHgł 3)B
  #
  #pap-restart <n>

  # PAP autenticate-request oő n ɂ܂(ftHgł 10)
  #
  #pap-max-authreq <n>

  # CHAP F؂ĊJ܂ł̎Ԃ n bɂ܂(ftHgł 3)
  #
  #chap-restart <n>

  # CHAP F؂ő n 񎎂݂܂(ftHgł 10)B
  #
  #chap-max-challenge

  # ̃IvVw肵ꍇAڑ n bƂ CHAP F؂J
  # ܂B
  #
  #chap-interval <n>

  # ̃IvVw肷ƁA[J IP AhXIvVw肵
  # Ăڑ悪Ă IP AhX[J IP AhXɂ܂B
  #
  #ipcp-accept-local

  # ̃IvVw肷ƁA[g IP AhXIvVw肵
  # Ăڑ悪w肵 IP AhX[g IP AhXɂ܂B
  3
  #ipcp-accept-remote
  ______________________________________________________________________

  14.2.  ǂ̃IvVw肷ׂH

  [A͏󋵂ɂ܂B

  ȉɎ̂́AʓIȗ̂قƂǂJo[ł 2 ̊{I
  o[W̃IvVt@CłB

  ȂAȂꍇAqi^t@C (/etc/ppp/options.tpl)
   pppd ̃}jAǂ݂܂傤B킹āAڑ̃T[oǗ
  VXeǗ҂⃆[UT|[gWɖ₢킹Ă݂̂ł
  B

  14.2.1.  /etc/ppp/options(PAP/CHAP gȂꍇ)

  ȉ̐ݒ PAP/CHAP F؂KvƂȂꍇpłB

  ______________________________________________________________________
  # /etc/ppp/options (NO PAP/CHAP)
  #
  # pppd obNOhɓȂ悤ɂ܂
  -detach

  #  IP AhXŒȂ 0.0.0.0 𐳂 IP AhXɏ
  # B
  0.0.0.0:

  # f̐g܂B
  modem

  # VAfoCX𕡐̃vZXgȂ悤ɃbNۂ uucp
  # X^C̃bNg܂B
  lock

  # n[hEFAt[Rg[g܂B
  crtscts

  # PPP ڑftHǧoHɂ܂B
  defaultroute

  # Rg[LN^؃GXP[v܂B
  asyncmap 0

  # opPbg̑傫ő 552 oCgɂ܂B
  mtu 552

  # 󂯂ƂpPbg̑傫ő 552 oCgɂ܂B
  mru 552
  #
  #-------END OF SAMPLE /etc/ppp/options (no PAP/CHAP)
  ______________________________________________________________________

  14.2.2.  /etc/ppp/options (PAP/CHAPgꍇ)

  T[o PAP  CHAP F؂߂ꍇAL̃IvVt@CɈȉ
  ̍stĂB

  ______________________________________________________________________
  #
  # F؂̍ۂ ISP ł̃[U[zXgƂĎg܂B
  name <your ISP username>        # ̍s͖YꂸύX邱

  # PAP  CHAP F؂IɍsKvꍇAȉ̓K؂ȍs̃Rg
  # O

  #+chap
  #+pap
  #
  # /etc/ppp/pap-secrets t@CÍĂꍇAȉ̍s̃R
  # gO

  #+papcrypt
  ______________________________________________________________________

  15.  /etc/resolv.conf t@C̐ݒ

  lԂ͖Ot̂DłARs[^͐̕ӂłB
  TCP/IP lbg[N(Ȃ킿C^[lbg̐E)ł́A̓}V
  ̖̂Ŏw肵ASẴ}V͓"hC"ɑĂ܂BႦ
  ΁AgĂ Linux [NXe[V archenland ƂO
  ŁAhedland.edu.au hCɑĂ܂B̃}V̐lԌ̃Ah
  X archenland.hedland.edu.au łBÃC^[lbgɐڑ
  ꂽ}V炱̃}V邽߂ɂ IP ԍg܂B

  ̂悤ɁA}V(ƃhC)̖̂ IP ԍɕϊ()邽߂ɃC
  ^[lbgɗpӂĂ̂ Domain Name Service(DNS)łB

  PPP ڑ̏ꍇA茳 Linux }VɁAǂŃzXg IP ԍ̕ϊ
  (AhX̉)\ɂȂ邩w肵āAȂ}VgĂA
  Rs[^͕Kv IP ԍɕϊł悤ɂĂKv܂B

  ̕@͐ڑSẴzXg /etc/hosts t@Cɏނ
  ł(C^[lbgɐڑꍇAIɂ͕s\ł)GOł͂
  Aꂼ̃}V IP AhX𒼐ڎĝ̕@ł (
   LAN ȊOł͂ƂĂLłȂł傤)

  őP̕@́AǂŃzXg IP ԍ̕ϊIɍs邩
  ƂłBDomain Name Server ̃T[rXsȂĂ̂ŁAKv
  Ƃ DNS  IP ԍ /etc/resolv.conf t@CɎw肷邱ƂłB

  PPP T[õVXeǗ/[UT|[g͒ʏ 2  DNS  IP ԍ
  Ă͂ł(Œ 1 Ώ\łÃguɔ
  ĂĂ 2  DNS ݒ肵Ă܂)

  ̏ꍇA/etc/resolv.conf ͈ȉ̂悤ɂȂł傤B

  ______________________________________________________________________
  domain your.isp.domain.name
  nameserver 10.25.0.1
  nameserver 10.25.1.2
  ______________________________________________________________________

  /etc/resolv.conf C(KvȂ΍쐬)Aڑ ISP ̏
  f܂B̃t@C̃p[~bV͂̂悤ɂׂłB

       -rw-r--r--   1 root     root           73 Feb 19 01:46 /etc/resolv.conf

  LAN ɐڑĂāA /etc/resolv.conf ꍇ PPP ڑ DNS
  T[õAhXt킦邾ł܂܂B

  16.  PAP/CHAP ̔F؃t@C

  pap  chap pFؕ@gꍇÂ߂̔F؃t@C(secrets
  file)KvłB́A

  ______________________________________________________________________
  /etc/ppp/pap-secrets
  /etc/ppp/chap-secrets
  ______________________________________________________________________

  łB

  ŏɒӂĂ܂APAP  CHAP ͖{[Uł͂ȂRs[^
  VXeF؂悤ɃfUCĂ邱ƂLĂĂ
  B

  ƂƁAuǂႤ́HvƂ^₪łˁB

  ȒPɌĂ܂ƁA񂠂Ȃ̃Rs[^T[o PPP ڑ
  𒣂ƁAȂłȂAȂ̃Rs[^VXêǂȃ[U
  ł̐ڑgƂł킯łB炱APPP g 2 
   LAN(Local Area Network)т WAN(Wide Area Network)dĂ
  Ƃł킯łB

  ڑ ISP ́AISP ɐڑăC^[lbgg߂̃[U
  ƃpX[hĂ͂łBISP ɂƂāAȂ̃Rs[^
  O͂ǂł̂ŁARs[^̖OƂ ISP ɓo^Ă邠
  Ȃ̃[UgƂɂȂ܂B

  ̖O pppd  name username IvVŎw肵܂BłAISP
  [UgꍇA/etc/ppp/options t@CɈȉ̈s
  ܂B

  ______________________________________________________________________
  name your_username_at_your_ISP
  ______________________________________________________________________

  ZpIɌɌƁAPAP ̏ꍇ user our_username_at_your_ISP Iv
  VgׂłApppd PAP gꍇAI name  user
  Ɖ߂܂B name IvVg_́ÃIvV CHAP ɂ
  LȂƂłB

  PAP/CHAP ̓Rs[^F؂邽߂̕łAZpIɂ̓[
  g[̃Rs[^w肵ĂKv܂BAĂ̐l
  ͈ ISP gȂ߁Aݒt@C̃[gzXgɂ̓C
  hJ[h(*)̎wĂΏ\łB

   ISP ł́A̓dbԍɕ̃fڑAꂼقȂ
  Õ^[~iT[oɐڑĂ܂B̂悤ȏꍇ[g̃R
  s[^̖OڑOɌ肷邱Ƃ͕s\Ȃ̂ŁAݒt@C̃
  [gzXgɂ̓ChJ[h̎wĂׂłB

  16.1.  PAP ̔F؃t@C

  /etc/ppp/pap-secrets t@C͂̂悤Ȍ`Ă܂B

  ______________________________________________________________________
  # Secrets for authentication using PAP
  # client        server       secret     acceptable local IP addresses
  ______________________________________________________________________

  4 ̗Xy[XLN^ŋ؂Ă܂B

  ISP [U fredApX[h flintstone Ƃ܂B
  ꍇA /etc/ppp/options.ttySx t@Cname fred IvVݒ
  A/etc/ppp/pap-secrets t@Cɂ

  ______________________________________________________________________
  # Secrets for authentication using PAP
  # client        server  secret          acceptable local IP addresses
  fred            *       flintstone
  ______________________________________________________________________

  ̂悤ɐݒ肵܂B

  ̐ݒ́A[J}V̖O fred(ۂ̃[Jȃ}V̖O
  Ƃ͈Ă pppd ̖Og܂)āASẴT[oɐڑ
  flintstoneƂpX[hgƂɂȂ܂B

  炩ߐÓI IP AhXĂꍇȊOA[J IP Ah
  Xw肷Kv͂ȂƂɌ䒍ӂB

  PAP gĕ̃}VƐڑ悤ȏꍇAꂼ̐ڑ悲ƂɈ
  Ȃ郆[UgAڑ̃}V𒲂ׂKv܂B
  pap-secrets t@CɕKvȍstāAڑ̃}VƂname
  IvV𐳂ݒ肵܂B

  16.2.  CHAP ̔F؃t@C

  ݂̃o[W pppd ł͑ݔFؕKvłBȂ킿AȂ
  }VڑɔF؂Ɠɐڑ̃}VȂ̃}VɔF؂
  Kv܂B

  Ȃ̃}V fred Ń[g̃}V barney ̏ꍇAȂ̃}V
   /etc/ppp/options.ttySxɂname fred remotename barney IvV
  A[g}V /etc/ppp/options.ttySx t@Cɂ name barney
  remotename fred IvVꂼw肵ĂKv܂B

  fred /etc/chap-secretst@C͂̂悤ɂȂ܂B

  ______________________________________________________________________
  # Secrets for authentication using CHAP
  # client        server  secret            acceptable local IP addresses
  fred            barney  flintstone
  ______________________________________________________________________

  Abarney ̂͂łB

  ______________________________________________________________________
  # Secrets for authentication using CHAP
  # client        server  secret            acceptable local IP addresses
  barney          fred    flintstone
  ______________________________________________________________________

  17.  PPP ڑ蓮ŋN

  āA/etc/ppp/options /etc/resolv.conf t@C쐬܂(Kv
  Ȃ /etc/ppp/pap|chap-secretst@C)B PPP ڑ܂
  ǂ蓮ŎĂ݂܂傤(蓮ł܂ƂmFłĂ
  Iɐڑ@܂)

  蓮ڑ̂߂ɂ́AfZbgɏIłʐM\tgKv
  BMinicom Ȃ ALT Q ŉ\ł(Âo[W minicom Ȃ
  CTRL A Q ł)

  [gƂăOCĂ邱ƂmFĂB

  minicom ̂悤ȒʐM\tgNAʂ PPP T[oɐڑ܂BPPP
  ڑ̂߂ɉR}hKvȂ΁ÃR}hsĂB
  ȑOɃ`FbN悤

       ~y}#.!}!}!} }8}!}$}%U}"}&} } } } }%}& ...}'}"}(}"} .~~y}

  Ƃf[^Ă͂łB

  pap/chap gĂꍇAT[o}Vɐڑ邾ŎI ppp 
  NAOCȂĂL̂悤ȃf[^Ă܂(T[o
  ̐ݒɂĂ͂ȂȂꍇ܂)

  ŃfZbgɒʐM\tgI(minicom ł ALT Q 
  CTRL A Q ͂܂)ALinux ([g)vvgoA

       pppd -d -detach /dev/cuaX &

  Ɠ͂܂B

  -d IvV̓fobOo͂̎wŁÃIvVg ppp ڑ
  n܂ƂƂɁubveVXẽOt@CɋL^܂Bg
  u̍ۂɂ͂̃t@C𒲂ׂ܂傤B

  ۂɓׂ͂ cuaX ł͂ȂAʏA cua0  cua1 ƂۂɃ
  fڑĂ|[gԍw肷邱ƂYȂB

  PPP ڑm΃f̃Cg_ł͂łBPPP ڑm
  ɂ͑̎Ԃ܂B

  

       ifconfig

  R}hg PPP C^[tFCX̏Ԃ𒲂ׂ܂B

  C[Tlbg⃋[vobNfoCXȊOɁÂ悤 ppp foCX̕\
  ͂łB

  ______________________________________________________________________
    ppp0     Link encap:Point-Point Protocol
             inet addr:10.144.153.104  P-t-P:10.144.153.51 Mask:255.255.255.0
             UP POINTOPOINT RUNNING  MTU:552  Metric:1
             RX packets:0 errors:0 dropped:0 overruns:0
             TX packets:0 errors:0 dropped:0 overruns:0
  ______________________________________________________________________

  ŁA

  o  inet addr:10.144.153.104 ͂Ȃ̑ IP ԍŁA

  o  P-t-P:10.144.153.51 ̓T[o IP ԍł

  (ifconfig ͂Ȃ PPP T[oŎgĂ IP ԍȊO͕񍐂Ȃ
  m܂)

  ӁFifconfig ͐ڑ UP  RUNNING ԂɂȂĂ邱ƂĂ
  B

  Â悤ɕ\ꂽꍇA

  ______________________________________________________________________
    ppp0     Link encap:Point-Point Protocol
             inet addr:0.0.0.0  P-t-P:0.0.0.0  Mask:0.0.0.0
             POINTOPOINT  MTU:1500  Metric:1
             RX packets:0 errors:0 dropped:0 overruns:0
             TX packets:0 errors:0 dropped:0 overruns:0
  ______________________________________________________________________

  PPP ڑ܂mĂ܂BqfobOɂĂ̏͂䗗
  B

  ɁA[gzXg(Ƃ̐)ւ̌oHmĂ邩`FbN
  傤B̂߂ɂ́A

       route -n

  R}hg܂BƁAȉ̂悤ȏo͂͂łB

  ______________________________________________________________________
  Kernel routing table
  Destination     Gateway         Genmask         Flags MSS    Window Use Iface
  10.144.153.3    *               255.255.255.255 UH    1500   0        1 ppp0
  127.0.0.0       *               255.0.0.0       U     3584   0       11 lo
  10.0.0.0        *               255.0.0.0       U     1500   0       35 eth0
  default         10.144.153.3    *               UG    1500   0        5 ppp0
  ______________________________________________________________________

   ppp C^[tFCX2 ̃GgłĂ邱Ƃɓɒ
  ĂB

  ŏ̂̂̓zXgւ̌oH(H tOĂ܂)ŁAڑ IP Ah
  XĂ܂BAւ̌oH͂܂B

  2 ߂̂̂ftHǧoH(default route)ŁALinux PC ͂̌oH
  [J̃C[TlbgĂł͂ȂSẴpPbg𑗂܂B̃f
  tHǧoHlbg[Nւ̌oHƂ PPP T[ogwĂ
  BPPP T[o͉X̃pPbgC^[lbg֑肾AԓpPbg
  X̂Ƃ֑ĂȂ΂Ȃ܂B

  [eBOe[u 2 ̃GgȂꍇAԈ
  ܂(fobOɂĂ̏͂Ă)

   'ping' gĐڑeXg܂B̂߂ɂ́Aifconfig \
  ڑ IP ԍw肵āA

  ping 10.144.153.51

  Ƃ܂BƁÂ悤ȏo͂͂łB

       PING 10.144.153.51 (10.144.153.51): 56 data bytes
       64 bytes from 10.144.153.51: icmp_seq=0 ttl=255 time=328.3 ms
       64 bytes from 10.144.153.51: icmp_seq=1 ttl=255 time=190.5 ms
       64 bytes from 10.144.153.51: icmp_seq=2 ttl=255 time=187.5 ms
       64 bytes from 10.144.153.51: icmp_seq=3 ttl=255 time=170.7 ms

  ̕\͂܂ł̂ŁAKȂƂ CTRL C ďI
  傤BƁA

       --- 10.144.153.51 ping statistics ---
       4 packets transmitted, 4 packets received, 0% packet loss
       round-trip min/avg/max = 170.7/219.2/328.3 ms

  Ƃ\͂łB

  ɁAzXg ping ̃eXgĂ݂܂傤Bw肷zXg PPP
  T[oł͂ȂAʂ̃TCgɂzXgŁAĂ邱ƂmȃzXg
  Iт܂BႦ΁A

       ping sunsite.unc.edu

  Ƃ܂B

  ́Aw肵zXg /etc/resolv.conf Ŏw肵 DNS ֐q˂ IP
  ԍ֕ϊĂ邽߂ɑԂ܂SzȂ(ł̊Ԃ
  f̃Cg͓_łĂ͂ł)BĂAȉ̂悤ȏo
  \͂łB

        PING sunsite.unc.edu (152.2.254.81): 56 data bytes
       64 bytes from 152.2.254.81: icmp_seq=0 ttl=254 time=190.1 ms
       64 bytes from 152.2.254.81: icmp_seq=1 ttl=254 time=180.6 ms
       64 bytes from 152.2.254.81: icmp_seq=2 ttl=254 time=169.8 ms
       64 bytes from 152.2.254.81: icmp_seq=3 ttl=254 time=170.6 ms
       64 bytes from 152.2.254.81: icmp_seq=4 ttl=254 time=170.6 ms

  KȂƂ CTRL C Ē~Av܂傤B

       --- sunsite.unc.edu ping statistics ---
       5 packets transmitted, 5 packets received, 0% packet loss
       round-trip min/avg/max = 169.8/176.3/190.1 ms

  AĂȂ΂̃̕fobOɊւ͂ǂłB

  ׂĂ܂s΁A

       ppp-off

  R}hŐڑI܂B

  ΂炭̌ɃfnOAbv͂łB

  ܂nOAbvȂꍇAf̓d؂邩ʐM\tg𗧂
   +++ ͂ăf̃R}h[hɓAATH0 R}hŐڑ
  Af OK vvgA邱ƂmFĂB

  pppd bNt@CĂ܂傤B

  ______________________________________________________________________
  rm -f /var/lock/LCK..cuaX
  ______________________________________________________________________

  18.  ڑɂ - ڑpXNvg̍

  chat gڑp̃XNvg΁Achat OC PPP N
  ܂ŎIɍŝŁAKvȍƂ([gA邢 ppp O[v
  ̃o[ɂȂ)ڑ̂߂̃R}h͂邾ɂȂ܂B

  18.1.  [UƃpX[hF؂̏ꍇ

  ڑ ISP  PAP/CHAP F؂KvƂȂAȉ̃XNvgg
  ł傤B

  ppp pbP[WCXg[Ă 2 ̃t@C炩
  ߃TvƂėpӂĂ͂łBPPP 2.1.2 ̏ꍇÃt@C
   /usr/sbinɁAPPP 2.2 ̏ꍇ /etc/ppp/sciripts fBNg
  Ă܂B̃t@C

  PPP-2.1.2 ̏ꍇA

       ppp-on
       ppp-off

  PPP-2.2 ̏ꍇ

       ppp-off
       ppp-on
       ppp-on-dialer

  ƂȂĂ܂B

  āAPPP 2.1.2 gĂꍇAL̃Tvt@C͍폜Ă
  Ƃ߂܂B̃Tvt@Cɂ͐ݓIȖ肪
  ܂ - ułƓvAƌȂ - Ãt@C
  𒷂ԎgĂ܂( HOWTO ̍ŏ̃o[Wł͐E
  Ă̂ł)

  PPP 2.1.2 ̃[Û߂ɁAȉ PPP 2.2 ̃pbP[W玝Ă
  悢Tvt@CЉ܂Bȉ̃Tvt@CRs[
  āAPPP-2.1.2 ɕt̃XNvg̑Ɏg悤ɂ߂܂B

  18.2.  ppp-on XNvg

   PPP ڑJn邽߂ 2 {̃XNvĝÔ̂łB

  ______________________________________________________________________
  #!/bin/sh
  #
  # PPP ڑJn邽߂̃XNvgB2 ̃XNvĝ 1 ߁B
  # ̃R[h 'ps' R}hŕ\Ă܂̂ł܂Sł͂ȂA
  # ȒPB

  #
  # ̃p[^͎ۂ̒lɕύX邱
  TELEPHONE=555-1212      # ڑ̂߂̓dbԍ
  ACCOUNT=george          # OCEAJEg('George Burns'̗)
  PASSWORD=gracie         # LAJEg̃pX[h('Gracie Allen')
  LOCAL_IP=0.0.0.0        # [J IP ԍBI肠Ă̏ꍇ 0.0.0.0
  REMOTE_IP=0.0.0.0       # ڑ IP ԍB 0.0.0.0B
  NETMASK=255.255.255.0   # KvȂ΃lbg}XN̎w
  #
  # ppp-on-dialer g悤ɕϐ export
  export TELEPHONE ACCOUNT PASSWORD
  #
  # dbăOCXNvg̈ʒuB$PATH ϐ connect
  # IvVł͎gȂ̂Ő΃pXw肷邱([gł
  # ƃZLeBz[ɂȂ̂ŁǍɂĂ͎₵Ȃ)
  #
  DIALER_SCRIPT=/etc/ppp/ppp-on-dialer
  #
  # ڑ̊Jn
  #
  exec /usr/sbin/pppd debug /dev/ttySx 38400 \
          $LOCAL_IP:$REMOTE_IP \
          connect $DIALER_SCRIPT
  ______________________________________________________________________

  ppp-on-dialer XNvg͂̂悤ɂȂ܂B

  ______________________________________________________________________
  #!/bin/sh
  #
  # ppp-on XNvǧ㔼Bۂ̐ڑvgR𑗂镔
  #
  chat -v                                                 \
          TIMEOUT         3                               \
          ABORT           '\nBUSY\r'                      \
          ABORT           '\nNO ANSWER\r'                 \
          ABORT           '\nRINGING\r\n\r\nRINGING\r'    \
          ''              \rAT                            \
          'OK-+++\c-OK'   ATH0                            \
          TIMEOUT         30                              \
          OK              ATDT$TELEPHONE                  \
          CONNECT         ''                              \
          ogin:--ogin:    $ACCOUNT                        \
          assword:        $PASSWORD
  ______________________________________________________________________

  18.3.  PPP NXNvg̏C

  VXNvg 2 ɕĂ̂ŁAɏCĂ݂܂傤B

  18.3.1.  ppp-on XNvg

  XNvgCāAISP [UƃpX[ho^܂B
  ISP ̓dbԍYꂸɕύXĂB

  TELEPHONE= ȉ̊es͎ۂɂ̓VFϐ '=' ̉E̒lɐݒ肵Ă
  ̂(Rg͊܂݂܂)AesCāAۂ ISP 
  ̂ݒ肵ĂB

  ܂AIP ԍ̐ݒ肪KvȏꍇA/etc/ppp/options t@Cɐݒ肵

  ______________________________________________________________________
   $LOCAL_IP:$REMOTE_IP \
  ______________________________________________________________________

   DIALER_SCRIPT VFϐۂɃ_CA邽߂̃XNvg
  ΃pXw肵Ă邱ƂmFĂB_CÂ߂̃XN
  vgړ薼Oςꍇppp-on XNvgC邱
  YȂB

  ppp-on XNvg𐳂ݒ肵Aڑ PPP T[o[U/pX
  [h`̔F؂ĂꍇAppp-on-dialer XNvgύXKv
  ͂܂B

  N /etc/rc.serial ŃVAv[g̐ݒ͏IĂ邩m܂
  񂪁Appp-on XNvg̒ŖIɃVA|[gݒ肷̂
  ACfAłBĂ΁Af(VA|[g̐ݒZbg
  邩mȂ)̃vOňSĎgƂł܂B

  ̂߂ɂ͎ۂ pppd Jns̒OɈȉ̈s܂B

  ______________________________________________________________________
  /bin/setserial /dev/cuaX spd_vhi
  ______________________________________________________________________

  spd_vhi IvVݒ肵Ă΁A38,400 {[ŎgƂɁA
  ۂɂ 115,200 {[Őڑ邱ƂɂȂ܂B28.8k(ȏ)f
  ꍇÂ悤ɐݒ肵Ă̂ł傤BȂA
  14,400 {[̃f̓Rs[^ƃf[^Ƃ肷VA
  ̂悤ȃXs[hł͏łȂ悤łB

  f̃}jA`FbNāAf̃VA̍ō
  38,400 ̏ꍇAȉ̂悤ɐݒ肵܂B

  ______________________________________________________________________
  /bin/setserial /dev/cuaX spd_normal
  ______________________________________________________________________

  18.3.2.  T[oł PPP ̊Jn

  ppp-on-dialer XNvǵAOC pppd IɋNT[
  oŗLłAOCĂ疾I PPP NȂ΂ȂȂ
  T[o܂B

  T[o PPP N̂ɉ炩̃R}hKvȏꍇAppp-on-dialer
  XNvgCKv܂B

  XNvg̍Ō(pX[h̍s)ɁAT[o PPP N邽
   Kvȕ  PPPNR}h ̑΂ǉĂBPPP NR}
  hsۂ̓̕OCvvgɂ܂(Bourne VFœ
  ʂȈӖ - Ⴆ $ [ ] ɒӂĂ)

  Ă΁Achat VF̃vvg󂯂Ƃ΁AISP  PPP N
  邽߂̃R}hs܂B

  ̏ꍇAPPP T[o͕WI Bash ̃vvg

  ______________________________________________________________________
  [hartr@kepler hartr]$
  ______________________________________________________________________

  𑗂Ă̂ŁA̕󂯂

  ______________________________________________________________________
  ppp
  ______________________________________________________________________

  Ɠ͂āAT[o PPP N܂B

  XoPĂFł悤ɂĂ̂ŁȀ
  Aȉ̂悤<  MR}h>̑gݍ킹Iт܂B

  ______________________________________________________________________
          hartr--hartr    ppp
  ______________________________________________________________________

  ̗ł͈̎ԓɃvvg󂯂ƂȂꍇALbW
  ^[𑗂āAēxvvg҂܂B

  vvg󂯂Ƃ΁A'ppp' Ƃ𑗂܂B

  ӁFts̑O̍s̍s \ t chat XNvgŜ
  sƂ݂Ȃ悤ɂĂƂYȂ悤ɁB

  sKȂƂɁAڑ̂тƂɈقȂvvgԂĂT[o
  ܂B̂悤ȏꍇAminicom ȂǂgĉxT[oɃOC
  āAǂ̂悤ȕ񂪃vvgɎgÂ̂ǂ̕
   PPP N邽߂̕ɗpł邩𒲂ׂĂKv
  B

  18.3.3.  ppp-on-dialer XNvg

   ppp ڑJn邽߂̃XNvǧ㔼łB

  ӁFchat XNvg͒ʏsłBsɂĂobNXbV
  (\)(lԂɌ₷悤)sɕĂssɌ邽߂
  gĂAXNvg̈ꕔł͂܂B

  ̃R}hڍׂɌΎۂɉsĂ邩(s͂)
  𗝉ł͂łB

  18.4.  chat XNvg̈Ӗ

  chat ̃XNvg "󂯂Ƃ  M镶"̑gݍ킹A
  ˂̂łBȂ킿A𑗐MOɂ͉̕󂯂
  Ȃ΂Ȃ܂B

  󂯂ƂȂĂA炩牽𑗐M邽߂ɂ́A̕
  ("")󂯂Ƃ镶Ɏw肷Kv܂BlɁA
  ƂĂ炩瑗MȂꍇ͑M镶ɋ̕w肵
  B܂A񂪕̌̏ꍇ(Ⴆ NO CARRIER)ANI[g
  Ĉ̕ƌȂ悤ɂȂ΂Ȃ܂B

  ̗ł chat XNvg :-

  o  exec chat -v
     chat N܂B-v IvVw肷ƁAchat ̍sSĂ̓o
     ͂VXẽOt@C(ʏ /var/log/messages)ɏ݂܂B
     chat XNvgƓ悤ɂȂ -v IvVOĕsv
     ȃOȂ悤ɂ܂傤B

  o  TIMEOUT         3
     󂯂Ƃ܂ł̃^CAEg̎Ԃ 3 bɂ܂Bxf
     gĂꍇA̎Ԃ 5 b 10 bɂ̂΂ĂKv邩
     m܂B

  o  ABORT           '\nBUSY\r'
     BUSY Ƃ񂪗Ώ𒆎~܂B

  o  ABORT           '\nNO ANSWER\r'
     NO ANSWER Ƃ񂪗Ώ𒆎~܂B

  o  ABORT           '\nRINGING\r\n\r\nRINGING\r'
     RINGING Ƃ(JԂ)󂯂ƂΏ𒆎~܂B
     ͒NfɓdbĂĂ܂I

  o  ""              \rAT
     f當񂪗ȂĂ AT 𑗂܂B

  o  "OK-+++\c-OK";   ATH0
      chat ̃G[@\gĂ̂ŏGłB̃R}
     ḧӖ́AA
     OK ҂ĂāA OK Ȃ(̏ꍇ͂ƃfR}
     h[hɂȂĂȂ̂ł傤) +++ 𑗂(WI Hayes ݊
     ̃fŃR}h[hɂ邽߂̖)Aēx OK ҂AOK 
      ATH0(fnOAbvR}h)𑗂܂B
     Ă΁AfICɂȂĂ󋵂ł܂
     łB

  o  TIMEOUT         30
     Ȍ̃XNvgŃ^CAEg̎Ԃ 30 bɂ܂Bchat XN
     vg^CAEgŏIĂ܂ꍇA̎Ԃ 45 bƂ
     ɒĂ݂ĂB

  o  OK              ATDT$TELEPHONE
     OK ҂(ATH0 R}h󂯂f OK Ԃ܂)Adb
     ԍ_CA܂B

  o  CONNECT         ''
     CONNECT ҂(茳̃fڑ̃fɂȂ CONNECT 
     Ԃ܂)܂AԎ͉܂B

  o  ogin:--ogin:    $ACCOUNT
     ł̃G[̎dgĂ܂BOCEvvg
     ҂܂(..ogin:)A^CAEgԓɎ󂯂ƂȂ
     A^[𑗂čēxOCEvvg҂܂Bvvg
     󂯂Ƃ΁A[U𑗂܂([U$ACCOUNTƂVFϐ
     ɓĂ܂)

  o  assword:        $PASSWORD
     pX[hvvg҂ApX[h𑗂܂(pX[hVF
     ϐɓĂ܂)

   chat XNvgɂ͂Ȃ̃G[@\g݂܂Ă܂
  A chat ɂ͂Őȏɂ낢ȋ@\܂̂ŁAڍ
  ɂĂ̓}jA䗗(man 8 chat)B

  18.5.  PAP/CHAP F؂gꍇ̃XNvg

  ڑ ISP  PAP/CHAP F؂gꍇAchat XNvg͂ƊȒP
  Ȃ܂B̏ꍇAchat ͓dbĂȂ܂ő҂ŁǍ
   login  pppd ɂ܂܂B

  ______________________________________________________________________
  #!/bin/sh
  #
  # ppp-on XNvǧ㔼B

  exec chat -v                                            \
          TIMEOUT         3                               \
          ABORT           '\nBUSY\r'                      \
          ABORT           '\nNO ANSWER\r'                 \
          ABORT           '\nRINGING\r\n\r\nRINGING\r'    \
          ''              \rAT                            \
          'OK-+++\c-OK'   ATH0                            \
          TIMEOUT         30                              \
          OK              ATDT$TELEPHONE                  \
          CONNECT         ''
  ______________________________________________________________________

  18.6.  pppd ̃fobO -f Ŏw肷IvVt@C

  łɌ悤ɁApppd  -d IvVt΃fobO񂪏o͂
  悤ɂȂ܂B'debug' ƂIvV -d ƓłB

  VXNvgŐڑ̃eXĝłÂƂ debug Iv
  V͕t܂܂ɂĂ܂傤B(ӁFpppd Ƃ肷 login
  ͂Ƃ܂ syslog t@Cɂ̂ŁAfBXN̋󂫗
  悪ꍇ̓guNm܂BƂAȂ邽
  ɂ͐ڑɎsĂ΂炭̊Ԃꂱ pppd ˂񂷕Kv
  傤B)

  ׂĂƓĂ邱ƂmFłfobOIvV
  ܂傤B

  ppp ̃IvVt@C /etc/ppp/options  /etc/ppp/options.ttySx
  ȊOɒuĂꍇApppd  -f IvVŃt@Cw肵܂B

  ______________________________________________________________________
  exec /usr/sbin/pppd debug -f options.myserver /dev/ttySx 38400 \
  ______________________________________________________________________

  19.  ڑXNvg̃eXg

  X EBhEgĂꍇ͐V Xterm JA邢͐Vz
  R\[Jă[gƂăOC܂B

  ̃ZbVł /var/log/messages (AVXẽOt@C)

       tail -f /var/log/messages

  ƂăbZ[W\Ă܂B

  ŏ̃EBhE(邢͉zR\[)Ŏ̃R}hs܂B

       ppp-on &

  (/usr/sbin/ppp-on ̖OςĂ΂̖OŎsĂ) R}
  h̍Ō & tăobNOEhɂȂꍇA(ڑ؂
  )ppp I܂Ń^[~iɃvvg\ȂȂ̂Ō䒍
  ӁB

  ł̃EBhEɈڂăVXeȌԂ𒲂ׂ܂B

  (chat  -v IvVt pppd  -d IvVtĂ)
  ̂悤ȃbZ[W\͂łBO chat XNvg
  bZ[WŁA㔼 pppd ̋NbZ[WɂȂĂ܂B

  ______________________________________________________________________
  Oct 21 16:09:58 hwin chat[19868]: abort on (NO CARRIER)
  Oct 21 16:09:59 hwin chat[19868]: abort on (BUSY)
  Oct 21 16:09:59 hwin chat[19868]: send (ATZ^M)
  Oct 21 16:09:59 hwin chat[19868]: expect (OK)
  Oct 21 16:10:00 hwin chat[19868]: ATZ^M^M
  Oct 21 16:10:00 hwin chat[19868]: OK -- got it
  Oct 21 16:10:00 hwin chat[19868]: send (ATDT722298^M)
  Oct 21 16:10:00 hwin chat[19868]: expect (CONNECT)
  Oct 21 16:10:00 hwin chat[19868]: ^M
  Oct 21 16:10:22 hwin chat[19868]: ATDT722298^M^M
  Oct 21 16:10:22 hwin chat[19868]: CONNECT -- got it
  Oct 21 16:10:22 hwin chat[19868]: send (^M)
  Oct 21 16:10:22 hwin chat[19868]: expect (ogin:)
  Oct 21 16:10:22 hwin chat[19868]:  57600^M
  Oct 21 16:10:23 hwin chat[19868]: ^[[;H^[[2J^M^M
  Oct 21 16:10:23 hwin chat[19868]: ^M
  Oct 21 16:10:23 hwin chat[19868]: ^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I      This is node  kepler.hedland.edu.au^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I^I      at Hedland Campus^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I^I       Hedland College^M
  Oct 21 16:10:23 hwin chat[19868]: ^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I  Authorised user ONLY are to use this system^M
  Oct 21 16:10:23 hwin chat[19868]: ^M
  Oct 21 16:10:23 hwin chat[19868]: ^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I For more information, contact ComputerSystems^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I^I     on +61 (0)91 72 0400^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I^I^I     or^M
  Oct 21 16:10:23 hwin chat[19868]: ^I^I       email:  help@hedunx.hedland.edu.au^M
  Oct 21 16:10:23 hwin chat[19868]: ^M
  Oct 21 16:10:23 hwin last message repeated 3 times
  Oct 21 16:10:23 hwin chat[19868]: kepler login: -- got it
  Oct 21 16:10:23 hwin chat[19868]: send (hartr^M)
  Oct 21 16:10:23 hwin chat[19868]: expect (ssword:)
  Oct 21 16:10:23 hwin chat[19868]:  hartr^M
  Oct 21 16:10:23 hwin chat[19868]: Password: -- got it
  Oct 21 16:10:23 hwin chat[19868]: send (??????^M)
  Oct 21 16:10:23 hwin chat[19868]: expect (hartr)
  Oct 21 16:10:23 hwin chat[19868]:  ^M^M
  Oct 21 16:10:24 hwin chat[19868]: Last login: Sat Oct 21 14:55:53 on  ttyC0^M
  Oct 21 16:10:24 hwin chat[19868]: ^M
  Oct 21 16:10:24 hwin last message repeated 9 times
  Oct 21 16:10:24 hwin chat[19868]: ^I^IYou have logged into node  kepler.hedland.edu.au^M
  Oct 21 16:10:24 hwin chat[19868]: ^M
  Oct 21 16:10:24 hwin chat[19868]:            This is a Compaq Prolinea 486DX2/50 running Linux 1.1.54^M
  Oct 21 16:10:24 hwin chat[19868]: ^M
  Oct 21 16:10:24 hwin chat[19868]:        This computer operates as the main Hedland Campus communications^M
  Oct 21 16:10:24 hwin chat[19868]: ^I       node, providing dial-in terminal and SLIP access,^M
  Oct 21 16:10:24 hwin chat[19868]: ^I^I      Kepler also runs the Hedland end of^M
  Oct 21 16:10:24 hwin chat[19868]: ^I^I    the Hedland/Newman inter-Campus WAN link^M
  Oct 21 16:10:24 hwin chat[19868]: ^M
  Oct 21 16:10:24 hwin chat[19868]: ^M
  Oct 21 16:10:24 hwin chat[19868]: [hartr -- got it
  Oct 21 16:10:24 hwin chat[19868]: send (ppp^M)
  Oct 21 16:10:27 hwin pppd[19872]: pppd 2.1.2 started by root, uid 0
  Oct 21 16:10:27 hwin pppd[19873]: Using interface ppp0
  Oct 21 16:10:27 hwin pppd[19873]: Connect: ppp0 <--> /dev/cua1
  Oct 21 16:10:27 hwin pppd[19873]: fsm_sdata(LCP): Sent code 1, id 1.
  Oct 21 16:10:27 hwin pppd[19873]: LCP: sending Configure-Request, id 1
  Oct 21 16:10:27 hwin pppd[19873]: fsm_rconfreq(LCP): Rcvd id 1.
  Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd MRU
  Oct 21 16:10:27 hwin pppd[19873]: (1500)
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd ASYNCMAP
  Oct 21 16:10:27 hwin pppd[19873]: (0)
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd MAGICNUMBER
  Oct 21 16:10:27 hwin pppd[19873]: (a098b898)
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd PCOMPRESSION
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: rcvd ACCOMPRESSION
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: lcp_reqci: returning CONFACK.
  Oct 21 16:10:27 hwin pppd[19873]: fsm_sdata(LCP): Sent code 2, id 1.
  Oct 21 16:10:27 hwin pppd[19873]: fsm_rconfack(LCP): Rcvd id 1.
  Oct 21 16:10:27 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 1, id 1.
  Oct 21 16:10:27 hwin pppd[19873]: IPCP: sending Configure-Request, id 1
  Oct 21 16:10:27 hwin pppd[19873]: fsm_rconfreq(IPCP): Rcvd id 1.
  Oct 21 16:10:27 hwin pppd[19873]: ipcp: received ADDR
  Oct 21 16:10:27 hwin pppd[19873]: (10.144.153.51)
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: ipcp: received COMPRESSTYPE
  Oct 21 16:10:27 hwin pppd[19873]: (45)
  Oct 21 16:10:27 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:27 hwin pppd[19873]: ipcp: returning Configure-ACK
  Oct 21 16:10:28 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 2, id 1.
  Oct 21 16:10:30 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 1, id 1.
  Oct 21 16:10:30 hwin pppd[19873]: IPCP: sending Configure-Request, id 1
  Oct 21 16:10:30 hwin pppd[19873]: fsm_rconfreq(IPCP): Rcvd id 255.
  Oct 21 16:10:31 hwin pppd[19873]: ipcp: received ADDR
  Oct 21 16:10:31 hwin pppd[19873]: (10.144.153.51)
  Oct 21 16:10:31 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:31 hwin pppd[19873]: ipcp: received COMPRESSTYPE
  Oct 21 16:10:31 hwin pppd[19873]: (45)
  Oct 21 16:10:31 hwin pppd[19873]:  (ACK)
  Oct 21 16:10:31 hwin pppd[19873]: ipcp: returning Configure-ACK
  Oct 21 16:10:31 hwin pppd[19873]: fsm_sdata(IPCP): Sent code 2, id 255.
  Oct 21 16:10:31 hwin pppd[19873]: fsm_rconfack(IPCP): Rcvd id 1.
  Oct 21 16:10:31 hwin pppd[19873]: ipcp: up
  Oct 21 16:10:31 hwin pppd[19873]: local  IP address 10.144.153.104
  Oct 21 16:10:31 hwin pppd[19873]: remote IP address 10.144.153.51
  ______________________________________________________________________

  ( - ̗ł͐ÓI IP ԍgĂÃ}V炻̔ԍ
  PPP T[oɑĂ܂BI IP ԍ̊蓖ĂgĂ΁A
  悤ȂƂ͋N܂)

  ܂s悤Ɍ܂̂ŁAȑÔ悤 IP ԍƃzXgg
  ping Ă݂āAڑƓĂ邩mF܂B

  łȂ܂Bweb ̃uEUłłgălbgT[tĂ
  ܂傤B

  20.  PPP ڑ̏I

  PPP ڑIꍇAppp-off R}hg܂(̃R}h
  s邽߂ɂ̓[g PPP O[vɑĂȂ΂ȂȂ
  YȂ)

  PPP ̏Iɂ͂̂悤ȃOo͂邱Ƃł傤B

  ______________________________________________________________________
  Oct 21 16:10:45 hwin pppd[19873]: Interrupt received: terminating link
  Oct 21 16:10:45 hwin pppd[19873]: ipcp: down
  Oct 21 16:10:45 hwin pppd[19873]: default route ioctl(SIOCDELRT): Bad address
  Oct 21 16:10:45 hwin pppd[19873]: fsm_sdata(LCP): Sent code 5, id 2.
  Oct 21 16:10:46 hwin pppd[19873]: fsm_rtermack(LCP).
  Oct 21 16:10:46 hwin pppd[19873]: Connection terminated.
  Oct 21 16:10:46 hwin pppd[19873]: Exit.
  ______________________________________________________________________

  SIOCDELRT ƂbZ[WoĂ܂A͒P pppd IĂ
  ƂƂĂ邾Ȃ̂ CɂKv͂܂B

  21.  fobO

  ڑ܂ȂƂɂ͖̗R܂ - Ⴆ chat 
  IȂAdbɃmCYB肪NA܂
  syslog t@C𒲂ׂĂ݂܂傤B

  Ƃ悭ԈႢ̓XNvg̒ɉłԈႢ邱ƂłB
  XNvg炽߂ĂƌĂ݂܂傤 - XlԂ͎ۂ
  ł܂ꂽł͂ȂAł̕ǂł܂ȂƂ
  YꂸɁB

  A悭ԈႢ̓J[l 1.2.X  PPP-2.2 gĂA
  J[l 1.3.X/2.0.X  PPP-2.1.2 gĂłBJ[l̃o[
  Wɂ pppd gĂB

  ł_ȏꍇAPPP FAQ ɖڂʂ܂傤(PPP FAQ  PPP Ɋւ
  ƓW߂̂ł)A FAQ ͂܂܂ȗ̈Jo[ĂA
  Ă̖ɑ΂𓚂pӂĂ܂Bg(߂)o
  ƁA FAQ ɓ΁A ppp Ɋւ̂ł͂
  B̏ꍇ ELF ł̃J[lgȂJ[lW[K
  Ȃ̂Ƀo[WAbvĂȂAƂ̂łB́A PPP
  T[oƂ͉ƃ{Ȃ 2 (Ƃقڈ)߂Ă܂܂B

  21.1.  PPP RpĈłALinux FĂ܂B

  J[l 1.3.X/2.0.X gāAJ[lɃW[T|[g@\g
  ŁAPPP @\W[ƂăRpC(ăW[g݂
  )܂ˁH

  kerneld gĕKvȃW[[hĂȂꍇAPPP g
  OɖI ppp W[[hKv܂(VAh
  CoW[[hKvł傤)B

  蓮ł邽߂ɂ́A[gɂȂ

  ______________________________________________________________________
          insmod ppp
  ______________________________________________________________________

  ܂B

  VAhCoW[[hꍇ́A

  ______________________________________________________________________
          insmod slhc
  ______________________________________________________________________

  ܂B

  ȂAJ[lW[͎[h悤ɂ֗
  B kerneld mini-howto ǂŁA[h悤ɐݒ肵܂傤B

  ̉\́ALinux 2.0.x  ppp-2.1.2 gĂꍇł(
   1.2.x ̃J[lɕKvȃpb`Ă ppp-2.2 gĂ
  )B

  J[l ppp ̃o[Wx`FbNĂBJԂ
  A

  J[l 2.0.x  ppp-2.2 KvƂ܂B

  J[l 1.2.x  ppp-2.1.2 g܂Appp-2.2 g߂̃pb`
  ܂B

  21.2.  ftHg[g(default route)ݒł܂B

  LAN p̃C[Tlbg(̑lbg[Nڑ)gĂāAłɃf
  tHg[gݒ肵Ă܂񂩁B

  @(ȒP)Ă܂B

  ̓ftHg[g͈ݒłȂƂłBftHg[g
  Ƃ́ǍoHĂł͂ȂpPbgSđoHłBʏAf
  tHg[g̓C^[lbgĂɂȂĂ͂łB

  sKȂƂɁA Linux ̃fBXgr[Vł̓[J
  C[TlbgftHg[gɂ悤ɐݒ肵Ă܂BC[Tlbg
  ĂVXe̐ݒt@CCāA[eBOC
  A[JȃC[Tlbgɂ̓ftHg[gł͂ȂÃ[
  eBOݒ肷悤ɂKv܂B

  ̂߂ɂ NET2-Howto  Linux Network Administrator Guide 𒲂ׂ
  B

  22.  2 ̃lbg[N PPP łȂɂ

  {IɈ Linux PC  PPP T[oɐڑꍇ 2  LAN 
  PPP gĐڑꍇႢ͂܂BPPP  Έ̃vgR
  ł邱ƂYȂB

  ȂA2  LAN ڑꍇAoHǂׂ
  ƗĂKv܂BNET-2 howto  Linux Network
  Adminitrator Guide(NAG)ǂ݂܂傤B܂AO'Reilly and Assoc o
  Ă"TCP/IP Network Administration(ISBN 0-937175-82-X) 𗧂
  ł傤B

  2  LAN ڑ邽߂ɂ́AقȂ IP lbg[Nԍݒ肵(
  ͓lbg[NԍłTulbg)ÓI IP ԍgA
  IP masquerade gȂ΂܂BIP masquerade gꍇ̐ݒ
  ɂĂ IP masquerade mini-howto 䗗B

  22.1.  IP ԍ̐ݒ

  ڑ LAN ̊Ǘ҂ƑkAPPP C^[tFCX̗[Ŏg IP 
  ߂܂BÓI IP ԍgꍇA̓dbԍgKv
  ł傤B

   /etc/ppp/options[.ttyXX] t@CCKv܂BLAN 
  ڑpɌ܂fƃ|[gg悤ɂĂ̂ł傤B
  ̂߂ɂ /etc/ppp/options t@CCȂ΂ȂȂm
  B킹āALAN ԐڑȊO̐ڑ̂߂ɂK؂ options.ttyXX
  t@CKv܂B

  ÓI IP ԍgŎ悤ɁAȂ̑ PPP [ɓK؂ IP
  ԍw肵ĂB

  22.2.  oH̐ݒ

  [J LAN  PPP ڑoRăpPbg𗬂oHݒ肷Kv
  ܂B̂߂ɂ 2 ̒iKKvłB

  ܂ŏɁAPPP ڑĂ}Vڑ̃lbg[Nւ̌oH
  ݒ肵܂Bڑ悪C^[lbg̏ꍇApppd  `defaultroute' Iv
  Vt΂̌oHݒł܂B

  2  LAN Ȃ߂ PPP ڑgꍇ͓̃lbg[N[g
  w肵Ȃ΂Ȃ܂B̂߂ɂ/etc/ppp/ip-up XNvg
  route R}h܂B̕@ɂẮuڑĂAAv
  ̏͂䗗B

  ɁA[J LAN ɐڑĂ鑼̃Rs[^ցAȂ
  Linux }V ppp ŐڑĂlbg[Nւ 'gatway' ɂȂĂ
  邱Ƃm点܂B

  Aڑ̃lbg[N̊Ǘ҂ƂȂ΂܂
  BȂA()Ȃ̃lbg[NփpPbg𑗂Ă
  ̓ftHg[gł͂ȂÃlbg[N[gKvł(ڑ
   LAN Ȃ̃}VoRăC^[lbg֐ڑĂꍇ
  )B

  22.3.  lbg[NZLeB

  LAN  PPP oRŃC^[lbgɂȂ "O" LAN Ɛڑ
  ƁAZLeBɂӂ𕥂Kv܂Bt@CAEH[ݒu
  邱Ƃ𑁋}ɍl悤ɋ߂܂B

  23.  ڑmAA

  PPP ڑmApppd  /etc/ppp/ip-up `FbN܂B̃X
  Nvg݂Ďs\ɂȂĂ PPP f[͂̃XNvg
  s܂BłÃXNvg PPP ڑgꍇɎs
  ʂ̌oH̐ݒ₻̑̕KvȐݒ邽߂̃R}h
  ΁APPP ڑ̂тɎIɎsł܂B

  /etc/ppp/ip-up͕ʂ̃VFXNvgō\Ȃ̂ŁAVFXNvg
  ŉ\ȂƂ͉łł܂(肽Ƃ͉łł܂)B

  Ⴆ΁ÃVFXNvg̒ sendmail g mail queue ɗ
  Ă郁[𑗂肾悤ȂƂ\łB

  lɁAip-up (pop g)[肱ނ悤ȃR}hݒ肵A
  ISP ɓ͂Ă郁[IɎ肱ނƂ\łB

  23.1.  ʂ̌oHݒ

  2  LAN ڑꍇA'O' LAN ֌ʂ̌oHݒ肵
  ĂKv܂B /etc/ppp/ip-up XNvg̒Őݒ肷
  ȒPł傤BɂȂ̂́A PPP ڑgꍇłB

  /etc/ppp/ip-up ͑SĂ ppp ڑ̍ۂɎsXNvgȂ̂ŁAڑ
  ɉKvȌoHɊւR}hs悤ɒӐ[
  ݒ肵ĂKv܂B

  ̂߂ɂ pppd ̃XNvgɓnp[^g bash 
  'case' ŏ򂵂Ă̂ł傤BႦ΁AȉɎ
  ́AWAN ڑƎ̎ւ̃C[Tlbgڑg킯邽߂̃XNvg
  ł(҂Ƃ ppp T[ogĂ܂)

  ______________________________________________________________________
  #!/bin/bash
  # pppd ŕKvɉă[eBOݒ肷邽߂̃XNvg
  # Newman campus ւ̃Nɂ̂݃[eBOKv
  #
  # ppp ڑ̍ہÃXNvg͈ȉ̂悤ȈŌĂяoB

  #       $1      pppd gC^[tFCX(Fppp3)
  #       $2      tty foCX
  #       $3      tty foCXx
  #       $4      C^[tFCX̃[J IP AhX
  #       $5      [g IP AhX
  #       $6      pppd  ipparam IvVŎw肷p[^
  #
  case "$5" in
  # Newman Campus ̃T[oւ̃[eBOݒ
          202.12.126.1)
                  /sbin/route add -net 202.12.126.0 gw 202.12.126.1
  # [L[ɗĂ郁[𑗂肾B
                  /usr/sbin/sendmail -q &
                  ;;
          139.130.177.2)
  # C^[lbgڑ
  # ^CT[oĂȂΐڑɋNāAE̎ƓB
                  if [ ! -f /var/lock/subsys/xntpd ]; then
                          /etc/rc.d/init.d/xntpd.init start &
                  fi
  # j[XT[őN(ĂȂ)
                  if [ ! -f /var/lock/subsys/news ]; then
                          /etc/rc.d/init.d/news start &
                  fi
                  ;;
          203.18.8.104)
  #
  # ̃}VɃ[𑗂肱ށB̃C[TlbgIP masqeurade 
  # proxy arp ̃[eBOɂȂĂ̂Ń[eBO͕sv
                  /usr/sbin/sendmail -q &
                  ;;
          *)
  esac
  exit 0
  ______________________________________________________________________

  Newman campus ւ̃XNvgŐڑꍇAȉɎ悤ȃ[eB
  Oe[uݒ肳܂(̃}Ṽ͎_CAAbv PPP T[
  oC^[lbgڑ}Vł)Bꂼ̃Gg̃R
  gtĂ܂B

  ______________________________________________________________________
  [root@kepler /root]# route -n
  Kernel routing table
  Destination     Gateway         Genmask         Flags MSS    Window Use Iface
  # C^[lbgQ[gEFCւ̃zXg[g
  139.130.177.2   *               255.255.255.255 UH    1500   0      134 ppp4
  # Newman campus T[oւ̃zXg[g
  202.12.126.1    *               255.255.255.255 UH    1500   0       82 ppp5
  # ̎̃C[Tlbg LAN ւ̃zXg[g
  203.18.8.104    *               255.255.255.255 UH    1500   0       74 ppp3
  # JĂ 2 ̃_CAAbv PPP p
  203.18.8.64     *               255.255.255.255 UH    552    0        0 ppp2
  203.18.8.62     *               255.255.255.255 UH    552    0        1 ppp1
  # Newman campus LAN ւ̃lbg[N[g
  202.12.126.0    202.12.126.1    255.255.255.0   UG    1500   0        0 ppp5
  # [J̃C[Tlbgւ̃[g(2 ̘ANX C ̃lbg[N
  # ڑĂ܂)
  203.18.8.0      *               255.255.254.0   U     1500   0     1683 eth0
  # loop back foCXւ̃[g
  127.0.0.0       *               255.0.0.0       U     3584   0      483 lo
  # C^[lbgւ̃ftHg[g
  default         139.130.177.2   *               UG    1500   0     3633 ppp4
  ______________________________________________________________________

  23.2.  e-mail ̏

  O߂ł͐ڑmɒPɃ[L[tbVƂ@
  ŊO֑o[ǂ邩܂B

  WAN ڑ̏ꍇAڑ LAN ̃lbg[NǗ҂ƑkēƂ
  邱Ƃ\łBႦ΁AX WAN ڑł Newman Campus 
  /etc/ppp/ip-up XNvg͂̂悤ɂȂĂ܂B

  ______________________________________________________________________
  #!/bin/bash
  #
  # pppd ɕKvȃ[eBO̐ݒ
  # Hedlan Ă̐ڑ̏ꍇ݂̂ɕKv
  #
  # ppp ڑ̍ہÃXNvg͈ȉ̂悤ȈŌĂяoB
  #
  #       $1      pppd gC^[tFCX(Fppp3)
  #       $2      tty foCX
  #       $3      tty foCXx
  #       $4      C^[tFCX̃[J IP AhX
  #       $5      [g IP AhX
  #       $6      pppd  ipparam IvVŎw肷p[^

  case "$5" in
          203.18.8.4)
                  /usr/sbin/sendmail -q
                  ;;
          *)
  esac
  exit 0
  ______________________________________________________________________

  ISP ڑ IP AhX𓮓IɊ肠Ă PPP ڑgȂꍇł
  ISP ̃}Vɂ邠Ȃ̃[肱݂ꍇł傤B
  ̏ꍇAʓIɂ POP(Post Office Protocol)g܂BPOP 
  'popclient' vOňAip-up XNvgŐݒ肷邱ƂŎ
  邱Ƃ\łB

  K؂Ȑݒ popclient NXNvĝ݂܂ /etc/ppp/ip-up
  pӂ܂BRed Hat Linux ̓Ă郉bvgbv@(s̕Ki
  )ł́Â悤ɂĂ܂B

  ______________________________________________________________________
  popclient -3 -c -u hartr -p <password> kepler.hedland.edu.au |formail -s procmail
  ______________________________________________________________________

  j[XɂĂl̂Ƃ slurp Ȃǂ̃vOgƂŉ\
  łBip-up XNvg͒PȂ bash XNvgȂ̂ PPP ڑ
  ƂɖsׂǂȎdł邱Ƃ\łB

  24.  N̏I

  [gŎg΁A /usr/bin/ppp-off XNvgŖȂڑ
  Ił͂łBύXƂ́Asendmail []Ă
  ꍇ͂΂炭I҂悤ɂ邮炢ł傤B

  ͏hƂĎcĂ܂傤B

  AڑIꍇɂ̂ݎsXNvg邱Ƃł
  ܂B̃XNvg /etc/ppp/ip-down łB̃XNvg
  /etc/ppp/ip-up XNvgsȂύX𕜋邱Ƃ\łB

  25.  LAN ̃[eBOɊւ

  LAN ɐڑȂ PPP gꍇA(C[TlbgC^[tFCX
  oRĐڑ) LAN ֑pPbgƐڑ PPP T[o炻̐
  pPbǧoHɂčlKv܂B

  ̃ZNVł͌oHڂЉ͂܂ - P
  (ÓI)oH̗Љɗ߂܂B

  oHɂĂ悭mȂ Linux Network Administrator
  Guide(NAG)ɖڂʂ悤ɋ߂܂B܂AO'Reilly o
  Ă "TCP/IP lbg[NǗ"̖𕪂₷Ă܂B

  ÓIȌoH̊{Iȃ[́AftHg[gقƂǂ̃lbg
  [NAhXwĂAƂ̂łBȊÕlbg[NAh
  Xɂ͂ꂼɃ[eBOo^܂B

  ňB̏󋵂̓C^[lbgɐڑĂȂ LAN ɂȂ
   Linux }VāALAN gdboRŃC^[lbg
  lIɗpAƂłB

  ܂AC[Tlbgւ̌oHftHg[gł͂ȂÃlbg[
  NAhXw肷郋[eBOɂȂĂ邱ƂmFĂB

   route R}hŃ`FbN܂Broute -n ƂΈȉ̂悤ȃR
  }h\܂B

       [root@hwin /root]# route -n
       Kernel routing table
       Destination     Gateway         Genmask         Flags MSS    Window Use Iface
       loopback        *               255.255.255.0   U     1936   0       50 lo
       10.0.0.0        *               255.255.255.0   U     1436   0      565 eth0

  C[TlbgC^[tFCX(eth0)ftHǧoHɂȂĂ
  (eth0 ̍s̍ŏ̍s "default" ɂȂ܂)AC[Tlbg̏X
  NvgCāAftHǧoHł͂Ȃ̃lbg[NAhX
  w悤ɏC܂(ڍׂ Net2 HOWTO  NAG Ă)B

  Ă΁Apppd ̐ڑftHǧoHɂ邱Ƃ\łF

       [root@hwin /root]# route -n
       Kernel routing table

       Destination     Gateway         Genmask         Flags MSS    Window Use Iface
       10.144.153.51   *               255.255.255.255 UH    488    0        0 ppp0
       127.0.0.0       *               255.255.255.0   U     1936   0       50 lo
       10.1.0.0        *               255.255.255.0   U     1436   0      569 eth0
       default         10.144.153.51   *               UG    488    0        3 ppp0

  ̂悤 PPP T[o(10.144.153.51)ւ ppp0 oRzXg[g
  o^A PPP T[oQ[gEFCɂ悤ɃftHǧoH
  `Ă܂B

  ƕGȌoH䂪KvȏꍇAɏqׂhLgǂ݁AȂ
  ̃TCg̃GLXp[gɐq˂ĂB

  ڑĂ LAN [^ɂȂĂꍇÃTCĝ傫
  lbg[N֐ڑ邽߂̃Q[gEFCݒ肳Ă͂łB
  ꍇłAftHg[g PPP C^[tFCXɂāȂ̌oH
  ͂ꂼ̃lbg[N֌邱Ƃ\łB

  25.1.  ZLeBɂẴ

   LAN ɐڑĂ Linux }V PPP oRŃC^[lbgɐ
  ꍇA LAN ŜݓIɃC^[lbg։Ă邱Ƃ
  Ȃ܂ - ɂ̓NbJ[̊댯܂BPPP oRŃC^[lb
  gɐڑ܂ɂ͂Ȃ̑gD̃lbg[NǗ҂ɑkAZL
  eBɊւjmF悤ɋ߂܂BȂ PPP 
  oRĂȂ̃TCgU΁Albg[N/VXe
  Ǘ҂̔̓IɂȂ邱Ƃł傤Bɐ[Ȗ댯
  ܂B

  LAN C^[lbgɐڑOɂ́AI IP AhXpĐڑ
  AɐGꂽ O'Reilly  "Building Internet Firewalls" ǂŁA
  SȐڑ@lĂB

  26.  ǂ悤ȂƂɁB

  PPP ڑ܂ȂꍇA̕ēxǂŁASĂ`FbN
  ĂB "chat -v..." R}h̏o͂ "pppd -d" ̏o͂
  VXẽOt@C璲ׂĂ݂܂傤B

  PPP ɊւhLg FAQ ȂǁA̕ŏЉĂ镶ɂ
  ʂĂ݂ĂB

  ł܂sȂꍇAcomp.os.linux.misc 
  comp.os.linux.networking ̃j[XO[vɓeĂ݂܂傤B
  ̃j[XO[v comp.protocols.ppp lAPPP ɏڂl悭
  ł܂B

  Ă e-mail ĂĂ\łAɂd(Ɛ)
  ̂ŁA΂₭Ԏł邩͕ۏ؂̌ł͂܂(邢͑S
  Ȃ܂)B͎dׂ̕lIȐ̏󋵂Ɉˑ
  ܂B

  ꌾӂĂ܂AcȃfobOo͂j[XO[vɓe
  莄ĂɑĂȂłB O҂̓lbg[N̑ш̘Qł
  A҂ /dev/null ɂȂ܂(ɂ̏o͂ĂقƗ
  񂾎ȊO)

  27.  ڑ܂ĂN₷

  ̈́ÃT[rXvoC_ڑp̐V\tgEFApb
  P[WT|[gĂȂƂłB(T^I) Microsoft
  Windows Ō܂ :-( āÃvoC_̎⑋
  Unix(Linux)̂ƂSm܂BłAނ炩̏͂قƂ
  Ɗo債ĂĂB

  AlIȌ`Ŕނ Linux Ă邱Ƃ\ł(ISP ̎
  ⑋̒S҂̓C^[lbĝƂɂ͏ڂA Linux }V
  Ă\܂)

  27.1.  PPP T[o֐ڑł܂B

  PPP ڑȂāAPPP T[o IP ԍw肵 ping ł邯
  (PPP T[o IP ԍ ifconfig R}h ppp0  "remote" ƕ\
  Ă IP ԍł)Aւ͍sȂAƂłˁB

  ܂ /etc/resolv.conf Ńl[T[oɎw肵 IP ԍ ping Ă݂
  Bꂪ܂s悤Ȃ΁APPP T[oփpPbg͂Ă
  (PPP T[oƃl[T[o}V̏ꍇ͏)BɃT[rXv
  oC_̃}VzXg(FQDN)Ŏw肵 ping Ă݂܂傤BႦ΁A

  ping my.provider.net.au

  ł̓_ȏꍇAzXg IP AhXւ̕ϊ܂Ă܂
  B /etc/resolv.conf  typo ̂ł傤B/etc/resolv.conf
  𒍈Ӑ[`FbNāAvoC_狳ĂʂɂȂĂ邩
  `FbNĂBԈႢtȂ΁AvoC_ɓdb
  āA IP ԍmFĂB

  ł_Ȃ(voC_̃l[T[oĂ邱ƂmF
  )Aǂʂ̂Ƃɖ肪̂ł傤BVXe̐ݒ肪
  ڂ`FbNĂ݂邱Ƃ߂܂(Ƀt@Cp[~bV
  ɒ)B

  łvoC_̃l[T[o IP ԍł ping łȂꍇAl[
  T[o~܂Ă邩(db|ĊmFĂ݂܂)AvoC_̌o
  Hɖ肪̂m܂BɂăvoC_ɍēxmF
  Ă݂܂傤B

  ̉\ƂẮAڑ Linux g PPP T[o IP
  forwarding IvVJ[lɑg݂܂ĂȂ̂m܂I

  ʓIȃeXgƂẮAƂ悭gĂ Microsoft Windows
  p̃\tgEFAgĎĂ݂邱ƂłBAJEgŁAʂ OS
  Ȃ΂܂ڑł悤ȏꍇA͂Ȃ Linux ɂāAT[
  rXvoC_̑ł͂܂B

  27.2.  e-mail oł󂯂Ƃ܂B

  I IP AhX̊蓖Ă󂯂ĂꍇAꂪʂłBɐG
  ueT[rX̐ݒv䗗B

  27.3.  Ȃ̐l finger  WWW, gopherAtalk Ŏ̃}Vɐڑł
  Ȃ̂ł傤B

  I IP AhX̊蓖Ă󂯂ĂꍇAꂪʂłBɐG
  ueT[rX̐ݒv䗗B

  28.  I IP ԍŃC^[lbg̊eT[rXgɂ

  IP ԍڑ̓xɓIɊ肠ĂĂĂꍇ(ʂ̗𕥂
  ÃT[rXvoC_I IP AhX̊蓖Ă
  ܂)A̐邱Ƃo債Ȃ΂܂B

  ̏ꍇłO֌ẴNGXg͖Ȃ܂BȂ킿A
  sendmail oRŃ[܂Aftp Ńt@CĂA
  }Ṽ[U finger Aweb 肷邱ƂȂǂ͉\łB

  ڑĂȂԂŁÃ}VɎ肱ł e-mail ɕԎ
  Ƃ\łB̏ꍇAo[͎ ISP ɐڑ܂Ń[
  L[ɗĂ܂B

  AȂ̃}V 24 ԃC^[lbgɐڑĂ킯ł͂
  Aڑ̓xɓ IP ԍ炤킯ł܂BłAڂ
  Ȃ̃}V e-mail 󂯂Ƃ邱Ƃ͕s\ŁAweb  ftp ̃T[o
  pӂėFBɃANZXĂ炤悤ȂƂłBȂ̃}V
  ̓j[N IP ԍtĂȂ߁AC^[lbg̑猩
  AȂ̃}V͂݂Ă̂Ƃ͌Ȃ܂(ʂ̃}V
   IP AhX肠ĂĂ邱ƂYȂ)

  WWW T[o(₻̑̃T[o)ݒ肵ƂĂAȂ̃}VC
  ^[lbgɐڑĂA̎_Ŋ肠ĂĂ IP ԍ
  ȂANȂ̃}Vm邱Ƃł܂BFlɂȂ̃}V
  ǂ IP ԍŐڑĂ邩m点邽߂ɂ́Adb邱
  Ƃ e-mailA(voC_VFAJEgpӂĂꍇ)v
  oC_ɒuĂ ".plan" t@CŒm点邱Ƃ܂ŁA܂܂ȕ@
  ܂B

  قƂǂ̃[Uɂ͓͂ɖɂ͂ȂȂł傤Bʂ̐lKv
  Ƃ̂ e-mail ̑M(voC_̃AJEgŉ\ł)AWWW 
  ftp ƂC^[lbg̊eT[rX𗘗p邱ƂłB
  AȂ̃T[o֐ڑKvꍇAŒ肵 IP ԍ肠
  ĂĂ炤Kv܂B邢́AŎ@qgɂāA
  łJĂB

  28.1.  e-mail ̐ݒ

  I IP AhX̊蓖Ăgꍇłݒ肵Ă΃[J
  ɍ쐬 e-mail RɏoƂ͉\łBsendmail ̐ݒ͂
  Ŗʓ|ȍƂłBłA̕ł sendmail ̐ݒ@ɂĂ
  GꂸɁAڑ ISP ̃[T[oȂ̃[̃[zXg
  (sendmail.cf  DS IvV)ƂĎg@̂ݐ܂B(sendmail
  ̐ݒ̏ڍׂɂĂ sendmail ̕ނ sendmail ƋɔzzĂ
   m4 ̐ݒWǂłBKvȏ͊mɂ̒ɂ͂
  B)

  Sendmail ɂĂ͗Dꂽ{ołĂ܂(O'Reilly and
  Associates ̃oCuLł)AقƂǂ̃[UɂƂĂ͏ڂ
  ł傤B

  sendmail ݒ肷΁AO֑oL[ɗ[ PPP ڑ
  Ƃɑ肾悤ɐݒ肵Ȃł傤B̂߂ɂ
  /etc/ppp/ip-up XNvg

       sendmail -q &

  ƂR}hǉ܂B

  I IP 蓖Ăł͑Ă[󂯂ƂۂɖƂȂ܂B
  ̖ɂ́A

  o  [vO(MUA)ݒ肵āAԐM[͑S "reply to" wb_
     Ŏw肵 ISP ̃AhXɑ悤ɂ@B
     \Ȃ΁AFROM s̃AhX ISP ̃AhXɂĂ
     傤B

  o  ĂāApopclient vOgăT[rXvoC_
     [肱݂܂B

  popclient gă[肱ރR}hKvȂ /etc/ppp/ip-up
  XNvgɑg݂ŐڑɎIɍsȂƂ\łB

  28.2.  [Jȃl[T[o̐ݒ

  l[T[o͐ڑ ISP ݒ肵̂gΖ͂܂񂪁A
  [JɃLbV@\݂̂(ZJ_)l[T[o ip-up
  XNvg̒ŗ邱Ƃ\łB[J(LbV@\
  ݂)l[T[o𗧂闘_́AڑԂ̊ԂɉxJ
  ԂTCgɃANZX悤ȏꍇɎ(Ƒш)̐ߖɂȂ邱
  łB

  LbV@\݂̂gl[T[o DNS ̐ݒ͂Pł
  (named.boot t@C "forwarders"s ISP  DNS w肷邾
  )BO'Reilly  "DNS and Bind"KvȂƑSĂĂ܂B

  ܂ADNS-HOWTO ɗł傤B

  l`PbgɂĈꌾFLbV@\݂̂gZJ_̃l[Z[
  o𗧂ꍇɂ ISP ɘAċ炤悤ɂĂB
  ݒ肳΁A[J DNS グƂ ISP ɂ͉̉ey
  ڂ܂񂪁AԈꍇAgu邱Ƃ܂B

  29.  PPP T[o̐ݒ

  ɏqׂĂ悤ɁAPPP T[oݒ肷@͂܂B
  ŏЉ̂(Cyclades ̃}`|[gVAJ[hg)g
  Ă@ŁAdb͈̔ԍɕ̉ڑ郍[^[_C
  AɂȂĂ܂B

  ŏЉ@CɏȂ΁AЎ̕@łĂ݂Ă
  B HOWTO ̏̃o[Wł͂낢Ȑݒ@Љ
  ƎvĂ̂ŁARg⎎@ɂċĂB

  Ő̂ Linux  PPP T[oƂĐݒ肷b݂̂ŁAʂ
  ^[~iT[oɂĂ̐Ȃǂ()͂܂B

  ܂A shadow password Ƃ܂(Ă݂
  ̂ł)BłAȉɐb shadow password ɂĂ
  ؂Ă͂܂܂B

  29.1.  J[l̃RpC

  ܂łɏqׂĂJ[l̃RpCJ[l̃o[W pppd 
  o[W̖SĂĂ͂܂܂B̏͂ł͍܂łɏqׂĂ
  SĂɖڂʂꂽ̂ƂĘbi߂܂B

  PPP T[opɂ̓J[l IP forward@\g݂ނƂK{łBK
  vȂ΂̑̋@\(Ⴆ IP t@CAEH[ IP AJEeBO
  Ȃ)g݂łB

  }`|[gVAJ[hgꍇAKvȃhCog݂ނ̂Y
  Ȃ悤ɁB

  29.2.  T[oVXe̊Tv

  dboR PPP( SLIP)ŐڑĂ郆[UpɃ[UAJE
  gƃVFAJEg[U/pX[h̃yAgĒ񋟂܂B
  Ă(XɂƂėLȂƂ)[UKvɂȂ͈̂̃AJ
  Eĝ݂ŁÃAJEgőSĂ̐ڑsƂɂȂ܂B

  ͋@ւ̐lԂŁAX^btw̃ANZXɉۋ܂Bł
  AڑԂ̊Ǘڑ̐ɂ͔ς킳ȂƂɂ܂B

  C^[lbgƎ̃TCg̊Ԃɂ̓t@CAEH[݂At@CA
  EH[֓dboRŃANZXĂ郆[UOփANZX
  ̂𐧌܂(ۂɂ͓ɂt@CAEH[̂ł
  AɂĂ͕KvȂ̂ŐG܂)

  [U PPP ŐڑĂ菇ƂĂ(LȃAJEg
  [Uł)F

  o  [^[ɂȂĂԍɓdb(͈̓dbԍɕ
     ̃fȂĂAĂdb͍ŏ̋󂢂Ă郂f
     ɐڑ܂)

  o  [UƃpX[hgăOCB

  o  VFvvg ppp R}hgăT[o PPP N

  o  PC  PPP N([U Windows ł DOS łALinux ł MAC
     OS łAł\܂)

  T[o͂ꂼ/etc/ppp/options.ttyXX t@CgāAꂼ
  |[gƂɈقȂ IP ԍڑɃZbg܂(ڑ鑤炷
  I IP 肠ĂɂȂ܂)BT[o͐ڑĂNCAg
  proxyarp [eBOgČoH܂(pppd ̃IvVŎw肵
  ܂)BĂ routed  gated ͕svɂȂ܂B

  [Uڑ؂ꍇApppd ڑfFăfɉ؂
  ɖA PPP ڑI悤ɂ܂B

  29.3.  \tgEFAW߂

  ȉ̂悤ȃ\tgEFAKvłB

  o  LinuxBKvȋ@\𐳂g݂łƁB

  o  J[l̃o[Wɍ pppdB

  o  fƂ̐ڑƏ 'getty' vOB

      getty_ps2.0.7h gĂ܂Amgetty ̕悤Ɏv
     ܂BƂɂ mgetty  pap/chap gڑ
     F(pap  Windows95 ŕWɂȂĂ܂) pppd IɋN
     邻Ȃ̂łA܂Ƃ͂܂B

  o  dboRŐڑĂ郆[Ug DNS T[oB
     \ȂΎ DNS T[o𗧂܂傤B

  29.4.  WI(VFoR)ڑB

  PPP T[oݒ肷O Linux db󂯂邱ƂmF
  ĂB

   HOWTO ł͈͂̕܂BI getty ̃hLg
  serial HOWTO  䗗B

  29.5.  PPP ̃IvVt@C̐ݒ

  /etc/ppp/options ɂ͑SẴ|[gɋʂIvVݒ肵܂B
  gĂIvV́F

  ______________________________________________________________________
  asyncmap 0
  netmask 255.255.254.0
  proxyarp
  lock
  crtscts
  modem
  ______________________________________________________________________

   - (I)oHw肵Ă܂ - ăftHg[
  gIvVw肵Ă܂BȂȂA(PPP T[oɂƂ)Kvȋ@
  \ ppp NCAg̃pPbg LAN/Internet ֑肾A
  LAN/Internet ̃pPbgNCAg֑肾Ƃ
  B

  ̂߂ɕKvȂ̂̓NAg}Vւ̃zXgƂĂ̌oHpppd ɗ^
   'proxyarp' IvVłB

  proxyarp IvVw肷(ׂƂ) PPP T[o arp e[
  uɁuPPP NCAgẴpPbg͑SĎɑāvƂӖɂ
  Gg쐬܂Bꂪ PPP NCAgւ̌oH
  ƂȒPȕ@łBȂA̕@ł 2  LAN т
  邱Ƃ͂ł܂B̂߂ɂ proxy arp ł͂Ȃlbg[
  N[g`ĂKv܂B

  dboRŐڑĂ郆[UɓI IP AhX肠Ă邽߂
  ́A|[gƂ IP ԍ肠ĂĂ܂B̂߂ɂ
  /etc/ppp/options.ttyXX |[gƂɍĂ܂B

  ̃t@Cɂ̓[J(T[o) IP ԍƂ̃|[gɊ肠Ă
  IP ԍLqĂ܂BႦ΁F

  ______________________________________________________________________
  kepler:slip01
  ______________________________________________________________________

  ̃t@Cɂ͗LȃzXgwł邱ƂɒӂĂ(
  Ă IP ԍ͖{ɊjƂȂ}Vƃlbg[NfoCX݂̂ł
  BzXg͐Ӗ̂ŋL₷ł傤)B

  29.6.  pppd [U(܂)悤ɐݒ肷

  ppp ڑJnۂɂ̓J[l̃foCX(lbg[NC^[tFC
  X)ݒ肵AJ[l̃[eBOe[u𑀍삵Ȃ΂܂
  ̂ŁA[gKvɂȂ܂B

  KȂƂɁApppd  uid  root ɂĂuSvȂ悤ɃfUC
  Ă̂ŁA

  ______________________________________________________________________
  chmod u+s /usr/sbin/pppd
  ______________________________________________________________________

  Ă܂B

  ̃t@C ls -l Ǝ̂悤ɕ\܂B

  ______________________________________________________________________
  -rwsr-xr-x   1 root     root        74224 Apr 28 07:17 /usr/sbin/pppd
  ______________________________________________________________________

  ȂĂȂƃ[U ppp ڑJn邱Ƃł܂B

  29.7.  pppd p̃GCAX̐ݒ

  ڑĂ郆[Uɕ₷悤ɁA/etc/bashrc ɃGCAXݒ肵
  āAOCΈ̃R}h ppp Nł悤ɂĂ
  ܂傤B

  ͂GCAXĂ܂B

  ______________________________________________________________________
  alias ppp="exec /usr/sbin/pppd -detach"
  ______________________________________________________________________

  ̃GCAẌӖ

  o  exec : ݓĂvO(̗ł̓VF)ɑւāAw肵
     vONB

  o  pppd -detach : pppd  fork ăobNOEhɓȂ悤ɂ
     ċNBĂ pppd I(PPP ڑɋN)v
     ZXSďI܂B

     [UOCĂ΁A'w' R}hňȉ̂悤ɕ\
     B

  ______________________________________________________________________
    6:24pm  up 3 days,  7:00,  4 users,  load average: 0.05, 0.03, 0.00
  User     tty       login@  idle   JCPU   PCPU  what
  hartr    ttyC0     3:05am  9:14                -
  ______________________________________________________________________

  łIB߂ɌʂAPŊ{I PPP T[oVXeo
  オ܂B

  30.  PPP kf(VA)Ŏgɂ

  ͊ԂɃfAƊȒPłB

  ܂A'T[o'ƂȂ}VIсAVA|[g getty ̐ݒ
  āA minicom Ȃǂ̒ʐM\tggăVA|[g'NCAg'
  ڑł邩eXg܂B

  @\邱ƂmFł getty ͍폜Ă܂č\܂B
  Adb̏ꍇ̂悤ɁA[UƃpX[hgĐڑF؂
  ꍇ getty cĂ܂BAVAŒ悤ȏꍇA
  õ}VƂڂ͈̓͂͂ɂ͂Ȃ̂ŁAʂ͓ɔF؂Kv
  Ȃł傤B

  ɁAT[o getty OƓɁAõ}ṼVA|[g
  setserial Őݒ肳Ă邩mFĂB

  őõ}V pppd N邾łBႦ /dev/cua4 ɐڑ
  ĂꍇAõ}Vňȉ̃R}hs܂B

  ______________________________________________________________________
  pppd -detach crtscts lock <local IP>:<remote IP> /dev/cua4 38400 &
  ______________________________________________________________________

  Őڑ܂ - Aꂾł͌oH񂪐ݒ肳Ă
  Bõ}V ping ŐڑĂ邱ƂmFAvȂ悤Ȃ
  U pppd vZX kill ĐڑI܂B

  AKvƂȂoH͉ɂĈقȂ܂Â
  Ȍ`Ԃ̐ڑꍇAʓIɕЕ̂̃}VC[Tlbg(Ƃ
  )ɐڑĂ͂Ȃ̂ŁAPPP T[oƃNCAǧ`̌oH
  KvɂȂł傤B

  łAC[Tlbgɐڑꂽ}Vł pppd ̂悤ɋN
  B

  ______________________________________________________________________
  pppd -detach crtscts lock proxyarp <local IP>:<remote IP> /dev/cua4 38400 &
  ______________________________________________________________________

  ̃}Vł

  ______________________________________________________________________
  pppd -detach crtscts lock defaultroute <local IP>:<remote IP> /dev/cua4 38400 &
  ______________________________________________________________________

  Ƃ܂B̃lbg[N(VAڑgāI)ȂꍇA
  蕡GȌoH䂪KvȏꍇAq悤 /etc/ppp/ip-up gĐ
  肵ĂB

  Robert Hart
  Port Hedland, Western Australia
  August 1996

