Re: Weird Problem with TCP

[Rohit Neupane]

On Thu, 02 Sep 2004 11:56:59 +0100, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
> > * Everything works fine for about 5-10 mins then all of a sudden TCP services
> > are not accessable.
> > * For some reason TCP times out. However at the same time ping,traceroute and
> > dns trace works without any problem.
> > * The connected TCP sokets keeps working without any problem. I verified this
> > by using Msn chat. I observerd that I chat session ( which I had started
> > when everything was normal) continued without any problem however I was not
> > able to initiate a new chat session.
> 
> Are you using session tracking. The symptoms you describe are
> classically those of session tracking nat/firewalling/whatever running
> out of table entries and being unable to allow new connections.
> 
No, it is not running any session tracking (ip_conntrack) neither it
does nat. It is just a firewall with around 1600 rules in FORWARD
mangle table and around 1500 rules in FORWARD filter table. Out of
1500 rules , 1377 rules are MAC filter rules.
And it had 3 alias address for the interface conneted to the wirelss.

regards,
Rohit


>
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