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Article #11575

Re: How can my app talk to other instances, networked and local?

#11575
From: Remy Lebeau (TeamB)
Date: Thu, 05 Feb 2004 18:46
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"Bob Gonder" <notbg@notmindspring.invalid> wrote in message
news:2f63205sghfq244hhc2obsdnk25jn6852r@4ax.com...

> You mean the 255.255.255.0 subnet? I think that would be acceptable.

Even though you can specify that as the destination of the broadcast, that
doesn't mean every machine on the entire network with get the packet.  More
times then not, routers will block the broadcast packets when they arrive.
And since UDP is a connectionless protocol, the sender of the broadcast will
never know that the packets were blocked.

> I've googled, but haven't come up yet with example code
> or APIs for UDP.

UDP is implemented via WinSock just as TCP is.  A UDP socket works the same
way in terms of the API as a TCP Socket does, except for the socket type is
different (SOCK_DGRAM vs. SOCK_STREAM).


Gambit
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Subject: Re: How can my app talk to other instances, networked and local?
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