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207

answers:

1
Q: 

Receiving UDP broadcasts on multihomed systems

I have a Windows XP machine with more than one network adapter. When I receive a UDP broadcast package from another machine that does not yet have a valid IP address, howcan I determine which network adapter received this package?

I need to implement a kind on custom DHCP server...

A: 

If the other machine doesn't have an IP address, then I don't think that it can be broadcasting UDP!

Do you mean a 'RARP' broadcast instead of a 'UDP' broadcast?

ChrisW  2009-05-15 20:10:33
Don't think so. I send UDP broadcasts myself to discover these machines, and they reply back with another UDP broadcast package. Their IP address is set zo some invalid value (I think).
theller  2009-05-15 20:21:43

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