Date:  Thu, 14 Dec 2006 15:33:57 -0800
From:  "Ken Marcus - Precision Web Hosting, Inc." <kenmarcus (at mark) precisionweb.net>
Subject:  [coba-e:08193] Re: TCP Checksum Invalid
To:  <coba-e (at mark) bluequartz.org>
Message-Id:  <023f01c71fd8$54997a90$6700a8c0@OfficeKen>
References:  <005d01c71f2c$817614d0$326ba8c0 (at mark) skywaves.net>
X-Mail-Count: 08193

>>
From: Dave Doherty
Hello!

I recently installed Nu-CentOS-BQ-4.6.iso on a Dell C521 computer.

On the LAN, it seems to work fine, but outside viewers cannot see it. I 
enabled ports 444 and 81 as well as the normal HTTP, HTTPS, DNS, POP, IMAP, 
SMTP and FTP through the firewall, which is Cisco PIX506E.

I installed Ethereal on a system on the LAN and accessed the server's admin 
interface. Many of the TCP packets from the server showed "TCP checksum 
invalid" errors, which I assume is why the packets are not making it though 
the firewall.

Is this a known issue with the 4.6 release? Has anyone else experienced 
this?

-Dave Doherty
 Skywaves, Inc.

<<

I had a problem in the past where the MTU on the router was set below 1500 
and it caused problems on the  /admin pages.


----
Ken Marcus
Precision Web Hosting, Inc.
http://www.precisionweb.net