Re: bizarre TCP behavior

[Andi Kleen]

On Tue, Apr 10, 2001 at 06:24:46PM -0400, Dave wrote:
> 
> I am having a very strange problem in linux 2.4 kernels.  I have not set
> any iptables rules at all, and there is no firewall blocking any of my
> outgoing traffic.  At what seems like random selection, I can not connect
> to IP's yet I can get ping replies from them.  Most IP's reply just fine,
> but certain ones fail to send even an ACK.  This problem disappears when I
> boot into 2.2.  Here is a brief example of what I am talking about:

Try echo 0 > /proc/sys/net/ipv4/tcp_ecn
If it helps complain to the sites that their firewall is broken.

-Andi