Joerg Mertin wrote:

> 
> It seems that this packet is not identified as having to be forwarded to
> the Webserver behind - but as the destination would be the firewall
> itself. Which is IMHO odd ...

It most likely means that, for some reason, the packets are not matching
either the DNAT rule or an existing conntrack entry.

> I have asked a friend to access my site and captured the requests. The IE
> request produced a Dropped packet, the Firefox not... So i could send
> these in if anyone is interested (I attached the IE-capture to this Mail).
> You can identify the requests by checking the sourceports in the pcap-file
> (using ethereal or wireshark)...

Afraid not -- either your mailer or the list software has mangled the pcap
file so that neither tcpdump nor Wireshark will have anything to do with it.

> 
> Have you seen this before ? Note that this happens only with Microsoft
> Internet Explorer since version 6 and later ...
> All other browsers have no issues ...

No such problems have been reported here in the past.

> 
> 
> I am using Shorewall 3.2.4-1 on an Ubuntu 6.06.1 LTS based system.
> 
> Thx for your Time ;)
> PS: I prefere not to send the shorewall dump to the list - can be missused
> by people accessing the archives - as the entire network infrastructure
> can be read out of it. Anyone who is si kind to help me - let me know -
> I'll send you the dump.

I'm doubtful that a dump will tell us anything. You are logging to a SQL
database and the log dump section of the dump comprises one of the most
important diagnostic tools that we have. What I suspect that we'll see is
some packets matching your log rule and the following drop rule and nothing
else.

-Tom
-- 
Tom Eastep    \ Nothing is foolproof to a sufficiently talented fool
Shoreline,     \ http://shorewall.net
Washington USA  \ [EMAIL PROTECTED]
PGP Public Key   \ https://lists.shorewall.net/teastep.pgp.key

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