IPv6 and yum
Wolfgang S. Rupprecht
wolfgang.rupprecht at gmail.com
Wed Nov 11 07:41:48 UTC 2009
Allen Kistler <an037-ooai8 at yahoo.com> writes:
> If the handshake is completing, then it's probably an MTU issue.
That is one of the things I was afraid of. I'm also connected to the
ipv6 net by a tunnel so I'm losing a few bytes of MTU to that.
> 1. Make sure you're not the one blocking ICMP.
Nope. I normally spend time convincing others to stop blocking icmp (or
if they must) to only block icmp-echo-request if their religion demands
it.
> If your IPv6 is through
> a tunnel, it could be a tunnel broker that's dropping ICMP. In
> which case, there's option #2.
I hope not. I do have access to a machine on a different tunnel to this
broker, so I should be able to test end-to-end ICMP for that.
> 2. You can try MSS clamping on your outbound packets. MSS clamping sets
> an option in your outbound TCP packets to tell the other side to use
> smaller packets. MSS clamping is an ugly, ugly protocol hack, but
> sometimes it's necessary.
I may have to do that. Thanks for the idea. I didn't realize there was
an iptables plugin for that.
-wolfgang
--
Wolfgang S. Rupprecht
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