From: Evan Martin (martine_at_danga.com)
Date: Mon Feb 16 2004 - 18:12:26 PST
The source port and destination port in the transport header of your
packets should always correspond to the source and destination of the
packet, regardless of the direction of the "connection" that these
transport packets are providing.
That is to say, if I have a connection open from host A port a, to host
B port b, all packets should either be:
src: A srcport: a
dst: B dstport: b
or
src: B srcport: b
dst: A dstport: a
Another way of saying this is that all packets from a given host along
a the connection should have the same host:port pair, regardless of
the packet's function.
(There is an alternative way of looking at this that reverses things,
which is what prompted this email. I won't write it out here because I
don't want to confuse you. :)
If this email seems to contradict what you're implementing, please come
see me and I will try to explain it further.)
-- Evan Martin martine_at_danga.com http://neugierig.org _______________________________________________ Cse461 mailing list Cse461_at_cs.washington.edu http://mailman.cs.washington.edu/mailman/listinfo/cse461
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