Re: Detecting server on lan

Knute Johnson <>
Wed, 01 Jul 2009 21:28:57 -0700
Ken T. wrote:

I would like to have the client detect a server on a lan. So there will
be some 30 clients on the same lan as a single server and when they start
I want them to be able to find the server and automatically connect to it
for using RMI.

My idea was to have them send out a UDP packet to the broadcast address
and then have the server respond saying, "Here I am!", but I'm having
difficulty figuring out how to send a UDP packet to the broadcast address
of the lan.

I tried just sending it to "", but this didn't work. Is
there a way to detect the broadcast address? Is there a way to send a
packet to it? Is there a simpler way to do what I'm trying to do?


You can't just try to connect to the server?


Knute Johnson
email s/nospam/knute2009/

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