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| Subject: | IP cheksum and libnet_pblock_coalesce |
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| Date: | 3 Sep 2004 06:48:44 -0000 |
Hello everybody, Should libnet_pblock_coalesce() set the IP checksum correctly? I'm using libnet 1.1.2.1, compiled with GCC 3.2.2 20030222 on Linux. When I create packet using libnet_build_[udp|tcp]() + libnet_build_ip(), then get the packet using libnet_pblock_coalesce() and then call libnet_ip_check() over the returned buffer, I get non-zero reply, indicating wrong IP checksum. Interestingly enough, if I create the packet with libnet_build_icmpv4_echo() + libnet_build_ip(), then libnet_ip_check() returns zero (checksum ok). Am I doing something wrong, or is there a bug? -jarppe
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