# || is not associative in the presence of side-effects -----------------------
tcc -xif:err 2>&1 >/dev/null | grep -v '^#'
prio {
    class if (raw[0] == 0 || drop) && 0;
}
EOF
block eth0 egress
action 0 = drop
action 1 = unspec
match 0:0:8=0x00 action 1
match action 0
