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Network IP Addressing
Summary: Two computers should never have the same IP address if they're on the same network. If they do, results are unpredictable.
An IP address uniquely identifies every computer on the internet. The key word there is unique. • If two computers on the same network have the same IP address ... well, the results are unpredictable. It depends on how all the other equipment on the network handles the problem. In general it could be as bad as both machines not being able to communicate at all. More likely only one will not be able to, or perhaps there will simply be intermittent problems on both. In short: don't do it. Related:
Article 1709 | Posted January 18, 2005 |
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It depends entirely on the functionality provided by that modem. If it's
acting like a full NAT router (which it might be), then I'd expect that
to be very similar to a standard home network.
Leo
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Posted by: Leo Notenboom at March 11, 2007 10:22 AMqVEcQEjTywSbxk3NCF/YTUc=
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Dear Leo,
i just purchased a laptop. i connected a router to the other computer i have at home, and then networked the laptop to that. it worked for the first two days, but now it says that two computers on the network have the same IP. so now my laptop can't connect to the internet.
it also says a network cable is unpluggged ( but i checked and nothing is.) maybe its caused by the IP conflict? please help.
Posted by: Daryl at August 19, 2007 10:41 PMHi,
One of my computers IP address matches with another IP address of a bad website in a different location?
Why is that? Is someone misusing my IP address?
Posted by: Senthil at October 14, 2007 12:04 AMI have a little different scenario ...
We have a Novell network here ..
and tonight for the 1st time ever we had a duplicate IP address issue ..
What happened is our main server ... say FS1 was stating that some one else on our network had the same static IP address as it (FS1) did ..
The big problem was it was the router for our Internet/Phones/Email ...etc ...
and all access to these apps died with this issue.
Question is ... does someone with the same IP address as a server (say) steal that IP address when they insert into the network ?? (ie Last 1 gets the address ..) ??
Cause it caused our server to loose access to the Ip functionality .. and so drop all incoming access to it ..
We did find the culprit, but were down for 2hrs doing so ...
When we turned the offending station off ... everything came back to life again ..
thx paul j.
Posted by: Paul Jamieson at April 24, 2008 9:15 PMCan a firewall's two interfaces have same IP?
Posted by: Nazeema at May 8, 2008 11:54 PMI know nothing about computers, But a couple of days ago, a window popped up on my computer while no programs were running. I wouldn't up the internet because it said that someone has the same IP address as I. Does that mean someone is hacking my computer?
Posted by: Shanice at May 12, 2008 4:24 PMI am really confused, i have been banned from an online game because I am suppose to have made an account on this IP address, But until 2 week ago I had NEVER been on the site before. I have checked the locotion of my Ip adress and it says i am somewhere on the other side of the country! How can this happern? And is there anyway of sorting this problem out? Would this also be the reason why my internet doesnt connect properly sometimes? It would be great If you could help, because is causing some problems.
Posted by: Lucy at June 17, 2008 4:53 AMhi leo
Posted by: martin at September 1, 2008 10:51 AMI have 2 laptops using the samke router.
My children has there own with password and username.
Is it possible to see what they are up to.
Just a bit worried but I dont want to intrude
Hi Leo,
I have one internet connection on a home computer. I unconnect and reconnect to a laptop and perform internet searches. I reconnect my home computer.
Can the laptop search history affect my home computer use in any way?
-Leo
Posted by: Jeff at September 7, 2008 11:44 AM
Hi Leao,
Posted by: Denis at September 14, 2008 7:48 PMI just want to know what happens if I register two cable Modems(Motorola SURFboard SB5120) on the same computer? Since I already have one registered(for the computer), is it possible to register the other one(for my xbox) using the same computer without affecting the first one??