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IP Addresses 1

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flugh

Technical User
Aug 23, 2002
655
US
I'm curious if anyone can give me a scenario where two seperate appliances/devices on a given network can have the same IP address.

My situation: the 6-figure-a-year manager had trouble getting the wireless router configured. The actors in this little tragedy being a dsl-modem, then the wireless devices,
then two desktop pcs.

I said "You'll have to change the ip of the router, as the dsl modem is also 192.168.1.1, and you don't want to monkey with it (ISP setup, dont mess with that if you ask me)".

He says "No, it's a wireless router. It's not competing for the ip address."

M'kay, I'm no 6-figure guy, I just run Linux for the last 8 years or so. Am I right here, or does this guy grok networking at a higher level and I just can't comprehend his advancedness? Is there a situation where two devices connected by a single cable can have the same ip address, and there NOT be a problem?

Oh, after nearly an hour of high-dollar 'why isn't this working?', he proudly announced it was working after he changed the IP on the wireless router. Hmm...


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JBR
 
If a device on 192.168.1.1 has a route stored for delivery of traffic to 192.168.1.1 to another location besides localhost, then it wouldn't operate correctly at all.

I know a number of 6-figure folks who are challenged by tying their shoes.

Not surprising that correcting the networking fixed the issue.

You are not wrong.


D.E.R. Management - IT Project Management Consulting
 
Thanks for the reassurance! I thought maybe I was getting too old for this and losing my mind :)

----
JBR
 
The only way it could have not been a problem is if the
wireless device had no IP address and was simply a bridge.
 
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