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2 servers need different external IP address behind same router

Tags:
  • Routers
  • Servers
  • IP Address
  • Networking
Last response: in Networking
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May 22, 2012 9:24:26 PM

I have a client that has 2 servers behind the same router. They have an IP block from Time Warner -> (x.x.x.18-.30) The router has the IP address of x.x.x.18. Server A (192.168.1.6) is setup with the forwarding of ports 22, 23, and 115 and can be seen with the ip address x.x.x.18. An external company needs to access the other server and is requesting an external IP for Server B (192.168.1.5) which need the same ports open along with 6200.

What is the best way to set this up with what they have? The router is a Linksys WRT54G. Is there a way to set them up with a x.x.x.19 address from time warner? Is this something time warner will need to do?

More about : servers external address router

May 22, 2012 11:30:18 PM

When you are issued a block of IPs you normally do not use a router, you use a switch first. In your case, you should use a switch to connect both servers and the router to the modem.
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May 23, 2012 12:15:48 AM

PhilFrisbie said:
When you are issued a block of IPs you normally do not use a router, you use a switch first. In your case, you should use a switch to connect both servers and the router to the modem.


Is that something the ISP would setup?
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May 23, 2012 4:05:37 AM

PhilFrisbie said:
When you are issued a block of IPs you normally do not use a router, you use a switch first. In your case, you should use a switch to connect both servers and the router to the modem.


I just thought about what you said, and I thought it would be a no brainer that everything is connected to the switch and then the linksys router...

Let me know if you meant something else by it.
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May 23, 2012 7:14:32 PM

In this case, you should attach a SWITCH to the modem, then connect both servers and the router to it. That way you can assign public IPs directly to the servers. Then attach other devices such as PCs to the router as normal.

This has another advantage: the servers can be accessed from inside your network by the public name and IP addresses.
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