Subject: how to disable ipfilter for IPv6?
To: None <tech-net@netbsd.org>
From: Pavel Cahyna <pcah8322@artax.karlin.mff.cuni.cz>
List: tech-net
Date: 09/03/2004 10:40:53
Hello,

I have frequent panics on 2.0_BETA if I do a flood ping to the wi1
interface link-local IPv6 address.

the backtrace is:
----
fr_coalesce(c0a89b00,c2b46060,c2b46000,c0d1e100,c0a89ad8) at netbsd:fr_coalesce+0x3c
frpr_ipv6hdr(c0a89b00,c2b46004,c2b46000,c0a89b30,c290d804) at netbsd:frpr_ipv6hdr+0x15a
fr_makefrip(28,c290c050,c0a89b00,4d0,fc40) at netbsd:fr_makefrip+0x7d
fr_checkicmp6matchingstate(c0a89cb0,0,0,c0a89c90,c290c048) at netbsd:fr_checkicmp6matchingstate+0xc1
fr_stlookup(c0a89cb0,c290c048,c0a89c78,0,c0b8f034) at netbsd:fr_stlookup+0x400
fr_checkstate(c0a89cb0,c0a89cac,c0a89cb0,38,0) at netbsd:fr_checkstate+0x21f
fr_check(c290c020,28,c0b8f034,0,c0a89db8) at netbsd:fr_check+0x50d
fr_check_wrapper6(0,c0a89db8,c0b8f034,1,c0d1bd00) at netbsd:fr_check_wrapper6+0x23
pfil_run_hooks(c076c140,c0a89e50,c0b8f034,1,c0a89e60) at netbsd:pfil_run_hooks+0x5b
ip6_input(c0d1bd00,c0b8f034,c0b8f000,1,0) at netbsd:ip6_input+0xa3e
ip6intr(3ecd0010,30,5f10010,10,c0a86000) at netbsd:ip6intr+0x71
DDB lost frame for netbsd:Xsoftnet+0x4d, trying 0xc0a89e70
Xsoftnet() at netbsd:Xsoftnet+0x4d
----

What is strange is that I see some ipfilter functions in the backtrace,
but I use ipfilter for IPv4 only and don't have an /etc/ipf6.conf file.
Why does ipfilter check IPv6 packets in this case?

Bye	Pavel