Strange SMTP packet

[Nigel Morse]

yeah, this is an ACK FIN packet problem  where ACK FIN packets are not being
recognised as part of a connection - there has just been a big discussion on
this list about it.  I'm gonna look into and post to the list when I have
something - may take a bit of time with other work etc. though.  There
appear to be no bad effects on my network so far (AFAIK )

> -----Original Message-----
> From: Florent [mailto:florent@arcimex.com]
> Sent: 06 August 2001 10:53
> To: netfilter@lists.samba.org
> Subject: Strange SMTP packet
> 
> 
> Hi,
> 
> My FW logs some packets from SMTP connections whereas I allow 
> these packets :
> 
> LOG :   IN=eth0 OUT=eth1 .....   PROTO=TCP SPT=25 
> WINDOW=33215 RES=0x00 ACK PSH FIN UGRP=0
> 
> rule : iptables -A inet-dmz -p tcp --sport smtp -m state 
> --state ESTABLISHED -j ACCEPT
> 
> 
> Could someone point me to my error?
> 
> 
> Florent
>