[SOLVED] Re: Poor network performance: a lot of timeouts

Robert Watson rwatson at FreeBSD.org
Wed Jun 1 02:01:56 PDT 2005


On Mon, 30 May 2005, Imobach González Sosa wrote:

> First of all, THANK YOU all for your help. I tried all your solutions 
> but I didn't worked for me. Why? Simple: the problem seems to be in may 
> ADSL router.
>
> I'll explain: I took my desktop computer to my neighbour's home. I 
> connected it to his ADSL and... worked pretty fine! So I got a new 
> router (from my neighbour's sister, thank you both) and take it home. 
> Changing my old router by the new one seems to solve the problem :-P

Does your DSL router have built in NAT support, and is it enabled?  Some 
of the older SpeedStream routers shipped by some DSL providers have a poor 
implementation of NAT that interacts poorly with other NAT 
implementations, such as the FreeBSD and Linksys NAT code.  When using a 
DSL modem provided by ShenTel in the Shenandoah Valley (in .va.us), I've 
seen TCP connections wedge, close spontaneously, etc, when passing through 
the NAT box...

Robert N M Watson


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