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HELLO

We are running into a lot of server timeout when sending mails, I download wireshark to check the probelm on running the program i got this error

Internet protcol,src 10.200.4.2 Dsy 195.92.231.55 header checksum 0x0000 [incorrect,should be 0x3cf4 , what does this mean? we are behind a check point firewall and a cisco asa5510 firewall

Cheers

asked 07 Feb '11, 08:34

jwc1972's gravatar image

jwc1972
16112
accept rate: 0%


It means that you probably used Wireshark to capture your own traffic on your local machine. Outgoing packets will most likely show incorrect checksums due to checksum offloading, especially since yours is 0x0000. See http://wiki.wireshark.org/TCP_Checksum_Verification.

Meaning: what you found is not a problem, it's a result of your capture setup and not an error.

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answered 07 Feb '11, 09:00

Jasper's gravatar image

Jasper ♦♦
23.8k551284
accept rate: 18%

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question asked: 07 Feb '11, 08:34

question was seen: 39,146 times

last updated: 07 Feb '11, 09:00

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