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How to "pull" one IP address from a 192.168.1.x network to a 10.10.10.x network?

Posted on 2010-11-23
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Hi, I'm having a problem that I can't seem to figure out.  I have two networks (a 192.168.1.x and 10.10.10.x network-both class c's).  Both networks are at physically different locations.  Both networks are Vlan1 at each location.

If I have to pull one server from the 192 network back to the 10.10.10 network for repairs, and want to bring it up so that people can still access it remotely, but I want to keep it locally for monitoring, how can I route it's specific IP address (ex 192.168.1.216) to the 10.10.10 network?  I'm using a cisco 7210 router on the 192 network and a cisco 2801 on the 10.network.

Any ideas?  I'm also using an mpls network which is also running bgp on the head unit (the 7200 router).

I tried adding an address from the 192 network that wasn't in use, to the 10.10.10.1 router as a subinterface and add the static route on the 192 router to point to the 192 subinterface on the 10.10.10.1 router, but when I do that, all traffic stops routing to the 192 network....!!!!?????  I'm' stumped.......

Any help is GREATLY appreciated....
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Question by:sstire
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Expert Comment

by:from_exp
ID: 34203127
i think the best option will be to NAT it.
so you take your server rfom 192.168.1.x to 10.10.10.x with new ip address of 10.10.10.x
on the cisco 2801 you configure NAT: 192.168.10.y (server's ip) dst nat to 10.10.10.z (new server ip)

however, please take in mind that this will not work for things like domain controllers, dhcp etc, at least unless other changes are introduced within your networks.
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Accepted Solution

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sstire earned 0 total points
ID: 34208534
I couldn't seem to get the NAT to work.  However, I did stumble across the fix though.  Was easier than I thought.  

On the 10.10.10 router I made a static route for the 192.168.1.225 host ip to go to an interface instead of an ip.  Soon as i did that I could ping the 192.168.1.225 address.  For the other networks, I had to put one more route on the 192 router to point to 10.10.10 router for that specific IP address.  Now, everybody can access the host from all our networks....

Works very nicely....feels weird routing to an interface instead of an ip addy though....oh well...whatever works right?!!!
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Author Closing Comment

by:sstire
ID: 34228769
Found the answer was just simple routing....
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