bin/104921: [patch] ipfw(8) sometimes treats ipv6 input as ipv4 (another variation on PR 91245)

[Lev Serebryakov]

The following reply was made to PR bin/104921; it has been noted by GNATS.

From: Lev Serebryakov <lev at FreeBSD.org>
To: bug-followup at FreeBSD.org, seh-10lzx4 at mail.quadrizen.com
Cc: freebsd-ipfw at FreeBSD.org, freebsd-net at freebsd.org
Subject: Re: bin/104921: [patch] ipfw(8) sometimes treats ipv6 input as ipv4 (another variation on PR 91245)
Date: Wed, 20 Apr 2011 16:36:55 +0400

 Hello, Bug-followup.
 
   It is still valid for 8.2-STABLE:
 
 gateway# ipfw add 50000 allow ipv6-icmp from any to 2001:470:1f09:hhhh::/64=
 ,2001:470:hhhh:1::/64,2001:470:hhhh:2::/64 icmp6types 1,2,3,4,128,129 keep-=
 state
 ipfw: bad netmask ``470:1f09:hhhh::/64''
 gateway# uname -a
 FreeBSD gateway.home.serebryakov.spb.ru 8.2-STABLE FreeBSD 8.2-STABLE #0: F=
 ri Apr 15 16:57:44 MSD 2011     lev at vmware-8-32.home.serebryakov.spb.ru:/us=
 r/obj/nanobsd.gateway-net5501/usr/src/sys/NET5501  i386
 
   It is very annoying bug, because "allow" rule can be divided into
 one-rule-per-network, but "deny ... NOT IPv6,IPv6,..." is hard to
 emulate (with multiple skipto rules).
 
 --=20
 // Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>