Re: [lwip-users] UDP packet sending problem

[patrick Deflandre]

I am wondering too why my linux station send bad checksum on a few ip
 frame. I don't know if it change something on my problem, but I should
 investigate on that problem too.

Nevertheless, as the udp frame seem to be received by the target, I
don't think this is the problem for sending an udp frame from the
embedded lwIP to my linux station.

Does anybody knows about linux bad checksum of ip frame ?

2009/6/26 Bill Auerbach <address@hidden>

Could it be the checksum error?

 

User Datagram Protocol, Src Port: 41486 (41486), Dst Port: tftp (69)
    Source port: 41486 (41486)
    Destination port: tftp (69)
    Length: 13
    Checksum: 0x3333 [incorrect, should be 0x419b (maybe caused by "UDP checksum offload"?)]
        [Good Checksum: False]
        [Bad Checksum: True]
Trivial File Transfer Protocol
    Opcode: Unknown (28777)
    Data (3 bytes)

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