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Socket question? Network unreachable

I have a simple socket program.  I've compiled it with gcc on
Debian 1.1 (kernel 2.0.29) and Red Had (Biltmore 2.0.30) and I keep
getting Network is unreachable.

Running gdb reveals the connect call is not working.
After stepping over the connect, errno = 101.  "Network is unreachable" is
displayed by perror and the program exits.

This is a small program that runs fine under SunOS 4.1.3.  The only thing
I had to do to the program was change the include paths from sys/ to linux/.

My Linux box IP

Can anyone give me a clue as to what the problem might be.  I don't know what
to look for at the moment.  The only thing I can think of is the above IPs
are not correct.  I can ping and telnet to the target which has the server this
socket program is to connect to.  I look in the arp table and it has a complete
entry.  Would arp be able to figure out everything if the above IPs we not right?

Thanks in advance for any advice.


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