On Tue, Apr 19, 2011 at 4:40 PM, Irmen de Jong <irmen.nos...@xs4all.nl> wrote: > On 20-4-2011 1:21, Grant Edwards wrote: >> >> If I don't call bind(), then the broadcast packets go out the wrong >> interface on the sending machine. >> > > Fair enough. > > Next issue then: as far as I know, broadcast packets are by default not > routed across > subnets by gateways. Which is a good thing. > > That would explain why your receiver doesn't see the packets unless its > interface IP > address is in the same subnet as the sender's. > > However it doesn't explain (for me) why the tcpdump program running on that > same > receiver machine still happily spits out received packets. Unless the routing > between > the subnets is somehow done on the receiving machine itself? My knowledge of > networks > and TCP/IP ends here I'm afraid. > > Cheers > Irmen.
I'm guessing there are two different subnets on the same physical cable - which is a little unusual, but not impossible. -- http://mail.python.org/mailman/listinfo/python-list
