[Bug 548] ip6tables accepts -p icmp

[bugzilla-daemon at bugzilla.netfilter.org]

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=548





------- Additional Comments From kaber at trash.net  2007-03-16 06:54 MET -------
I don't really consider this a bug. -p accepts any protocol number or protocol
from /etc/protocols, which contains icmp. You could just as well use "-p 123",
which AFAIK doesn't even exist.

Its just a numerical comparison in the kernel, the fact that ICMP over IPv6 does
not exist doesn't hinder anyone from sending an IPv6 packet with nexthdr = ICMP.

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