hi,
i am trying to implement a new protocol for establishing tcp/ip
between two computers through the parallel port. (some thing similar to
plip). but unlike plip i am using my own link layer header (8 bytes),
instead of the standard ethernet header plip is using.
i am using tcpdump to see the packets that are transmitted.. but
i can see garbage in the place where my header used to be (even the
header length is different) .. everything else is ok. i am sure that the frame is
setup right because, i can see that the header comes out right in the
other system.
so exactly when does tcpdump intercept the packets that are
sent..and how..?
john
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