ip forwarding: client has stalling problems

Jozsef Kadlecsik kadlec at blackhole.kfki.hu
Sat Jan 21 17:06:28 CET 2006


On Sat, 21 Jan 2006, SainTiss wrote:

> However, after I did this both on server and client, nothing changed... Also,
> using 2.6.8 on the server doesn't help...

That was a guess based on the available info.

As you are possibly behind an *DSL line, there might be that someone drops
ICMP fragmentation needed packets. Read TCPMSS target in the iptables
manpage and add the appropriate rule(s) to the firewall.

Another possibility is an ECN hole somewhere between you and the
destinations: try disabling TCP ECN on the client and give a try.

Best regards,
Jozsef
-
E-mail  : kadlec at blackhole.kfki.hu, kadlec at sunserv.kfki.hu
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Address : KFKI Research Institute for Particle and Nuclear Physics
          H-1525 Budapest 114, POB. 49, Hungary



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