Duplicate IP address

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In the unlikely event that 2 clients receive the same address from a DHCP server, what would you see in the TCP/IP configuration on both adapters?

Si

 

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You should see the same thing on both PC's. At least I think you should?

 

that is what i thought, but i just came accross a test question that stated the mask would be 0.0.0.0 on the client that could not connect...

Si

 

that makes sense... 0.0.0.0 would come on if it doesnt get an IP address or an error like this case duplicate IP's

 

This depends on the OSes involved. AFAIK no decent DHCP server could do this, but I'm sure this has probably happened! I would expect ARP to whinge (well - it does on FreeBSD). Other than that the two machines I would expect to show the normal IP and mask. They would have major problems communicating though.

I would need to look at the DHCP protocol to see if it has any method of digging itself out of such a hole.

What I *have* seen fairly often is where someone sets a static on a machine not realizing that it is in the middle of a DHCP range. Again, I got a complaint from ARP on a FreeBSD box.

Harry.

 

thanks for the input, guys

Si

 

This is true on Windows boxes with duplicate IP addys