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| Subject: | Re: problem in tcp checksum? |
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| Date: | Fri, 3 Dec 2004 17:46:44 -0800 |
On Dec 3, 2004, at 3:38 PM, Shai Rubin wrote:
Dear libnet users/developers,
I have recently switched from libnet version 1.1.0 to version 1.1.2.1.
Unfortunately, my code stops working.
It seems to me that there is a problem in the tcp checksum mechanism in the new version. When I trace my packets with tcpdump I get "bad tcp cksum" if a packet that I send has an odd number of bytes. If the packet has an even number of bytes, then the tcp checksum is OK. This does not happen when I compile my program with the older version of libnet.
Anyone has a similar problem?
Thanks,
Shai Rubin
-- Mike Schiffman, CISSP http://www.packetfactory.net/schiffman Doveryay No Proveryay
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