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Routing question



I have two Data Centers, each of them in different location, they both use NAT to provide transparency to public IP addresses.

I have to provide solution to a business requirement; I'd like to purchase the necessary equipment.

I have two Data Center, one is a Development Environment and the other is a Commercial Environment, both geographically dispersed.
I have some remote wireless devices (cell phones) transmitting data to my Development Environment
Every once in a while developers want those cell phones to communicate to the Commercial Environment
I can not reprogram the cell phones remotely with the new IPs

I need to somehow take the IP traffic from Dev Env and forward it to Comm Env for the required time window. It would be something like this:
Take everything coming to Internal IP on Dev Env 111.111.111.111:3200 and forward it to 222.222.222.222:3200 (leaving the rest of TCP and UDP unmolested)

I don’t know if a Cisco router could solve my problem.
What would be the best solution?
Can the router be installed inside my NATted network on Dev Env with a private IP and create a rule that forward the desired traffic to a Public IP on the Comm Env?
What kind of router do I need?



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manuel2002m
Asked:
manuel2002m
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1 Solution
 
SaineolaiCommented:
How about using DNS to solve the problem?  Initially let address.domain.com point to 111.111.111.111 then change the dns entry to point to 222.222.222.222.  

This will work depending on how many dns entries you might require, the frequency with which you want to do the change over and the length of time you can wait for the switch over to be 100%.

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SaineolaiCommented:
Sorry, you did say you want the other ports off the address unaffected?  Then dns won't work.  
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manuel2002mAuthor Commented:
Thats right,,,

I have more services on the same IP
I can not use DNS.

Thanks anyways.

Still waiting for some advise
MM
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tonyteriCommented:
How about a port trigger on the router.  You'd have to turn this trigger on and off.  but you can make it so any traffic coming into this ip over a given port, be routed to the other location.

/TT
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manuel2002mAuthor Commented:
Ok Tony,,, sounds like what I have asked can be done, right?
I just need to know if I'm not thinking on something that can not be implemented.
How about the router,, what kind of router/model could do something like that?


Thanks

MM
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Ron MalmsteadInformation Services ManagerCommented:
cisco 2600
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The--CaptainCommented:
You already said you're using NAT - surely your device supports a simple port-forward (destination IP translation) to another IP?

This solution seems too obvious - may I assume there is a reason (please feel free to elucidate) that a simple port-forward does not work?

Cheers,
-Jon
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prashsaxCommented:
port forward can solve your problem.

All you need to do is to setup the router to forward a port say 3200 from Subnet 111.111.111.111 to port 3200 on subnet 222.222.222.222, provided that router can access both networks.

Assuming the Ethernet0(inside) is 222.222.222.222 and Ethernet1(outside) is 111.111.111.111, the following command should do it.

222.222.222.222--------------Router---------------111.111.111.111

ip nat inside source static tcp 222.222.222.222 port 3200 interface Ethernet 1 port 3200

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manuel2002mAuthor Commented:
MMM,, SOUNDS GOOD

If May I ask... Can I buy a Cisco for that?, which would be a good Cisco router for that?, I alos like something I can use for some other task on my network, I still dont know which ones, only that in the future I could have some more use for it.

Thanks

MM
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kevinlw1974Commented:
What router do you have in place now? It may be able to do it without having to spend the cash.
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manuel2002mAuthor Commented:
I dont have any
Well, I have my firewall Watchguard X700, but I dont think it has that capabilities.
I also Have a Cisco 1700 Series, but it belongs to my ISP (for my T1) I dont have control over it.

Thanks

MM
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prashsaxCommented:
Cisco 1710 is a good router. We are using it for internet access.

It can do all basic tasks and can handle fairly good amount of data.
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The--CaptainCommented:
manuel2002m,

One typically splits pts when accepting an answer that expands or refers to a previous post.

No problem, tho - PEs get premium access by default - the only things pts do for a PE is elevate rank in the lefthand column, AFAIK.

Cheers,
-Jon
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