Re: Disabling TCP Checksum

["Laura Chappell" <lchappell () packet-level com>]

Hey John.

 

I actually leave the checksum error checking on and disable the Checksum
Error color filter (not deleted, but disabled) as THAT is the most annoying
thing of all here. 

 

Ya know. if there really is a TCP checksum errors and the receiving TCP
dumps the cruddy packet, you'll see retransmissions - if your
retransmissions don't seem to be caused by timeouts waiting for ACKs or
packet loss then just keep the TCP checksum idea in the back of your head
(my head can't hold that information, hence the checksum validation is on,
but the colorization is disabled). 

 

Laura

chappellU.com

 

From: wireshark-users-bounces () wireshark org
[mailto:wireshark-users-bounces () wireshark org] On Behalf Of Sheahan, John
Sent: Wednesday, October 28, 2009 8:00 AM
To: 'wireshark-users () wireshark org'
Subject: [Wireshark-users] Disabling TCP Checksum

 

To avoid the TCP checksum errors for my own machine, I disabled the box that
says "Validate the TCP Checksum when possible" under
Preferences/Protocols/TCP.

 

My question is, although this clears up my traces from constantly getting
the "TCP Checksum Error", are there any cons that I am opening myself up to
by changing this setting and should be aware of?

 

Thanks

 

John

 

 

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