Hi,
On 31 Aug 2013, at 21:49, Tim Bishop <tim at bishnet.net> wrote:
> Hi all,
>
> This is regarding kern/170070 and these two threads from last year:
>
> http://lists.freebsd.org/pipermail/freebsd-stable/2012-July/068987.html
> http://lists.freebsd.org/pipermail/freebsd-stable/2012-August/069043.html
>
> I'm running stable/9 r255017 and I'm seeing the same issue, even
with
> the fix Bjoern committed in r238876.
This is still with "modulate state" in some rules that also hit ipv6
traffic ?
It almost looks like doing this kind of traffic alteration is considered harmful
for IPv6
http://forums.freebsd.org/showthread.php?t=36595
If that is the case, then this should be applicable only to ipv4 traffic,
without requiring specific knowledge from the user
>
> My setup is a dual stack one (IPv6 is done through an IPv4 tunnel) and
> the problem is only with IPv6. I have jails with both IPv4 and IPv6
> addresses, and I use pf to rdr certain ports to certain jails. With IPv6
> I'm seeing failed checksums on the packets coming back out of my
system,
> both with UDP and TCP.
>
> If I connect over IPv6 to the jail host it works fine. If I connect over
> IPv6 to a jail directly (they have routable addresses, but I prefer them
> to all be masked behind the single jail host normally), it works fine.
> So the only failure case is when it goes through a rdr rule in pf.
>
> This system replaces a previous one running stable/8 which worked fine
> with the same pf config file.
>
> Has anyone got any suggestions on what I can do to fix this or to debug
> it further?
>
> Thanks,
>
> Tim.
>
> --
> Tim Bishop
> http://www.bishnet.net/tim/
> PGP Key: 0x6C226B37FDF38D55
>
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