setting up a router to work with 2 ip's

[dawks]

Ok.. we have a setup here.. where we have two static IP's comming off our cable modem. One is for our LAN, and therefore needs NAT. The other is for a single server related to our IP phone system..

Right now the internet connects to our Linksys router, which at this point is just a switch.. (I'd like to make it our router/firewall/nat box). From there one Cat5 cable connects to the external server, providing its public static IP access to the internet.. Another Cat5 cable connects to a SonicWall which provides NAT to our LAN..

I was hoping there is a way that the Linksys can handle it all.. It will have a static IP assigned to it, and provide NAT to our network, and will also allow our server which requires a static itself, work properly.

I can get the linksys to provide run our network properly, but I don't know how to get that other static IP address to pass through. In the linksys configuration page, the closest I've found is setting a static route, but im not sure thats it.. and I dont know what info to put in there..

Any help is appreciated!

 

[Cooky]

I don't think you can achieve what you want done if NAT is enabled on the LinkSys router...cause then you won't be able to assign the other public IP to a host behind it.

 

[dawks]

Originally posted by: Cooky
I don't think you can achieve what you want done if NAT is enabled on the LinkSys router...cause then you won't be able to assign the other public IP to a host behind it.

I was figuring that.. Just hoping there was another way.

 

[EatSpam]

A little Linksys box isn't going to handle what you want. You'll need to move up to a more advanced solution or use a Unix-ish OS for your firewall.

Personally, I use OpenBSD. One site has 5 IPs. The firewall handles all 5 and routes traffic accordingly.

 

[pcthuglife]

i dont know if this would work but why dont you just put a switch between your linksys router and cable modem? One port could go to your linksys with a static IP, and the other to your IP phone system. that way you could use your linksys as your NAT, gateway, etc and not have to worry about passing the other ip on to your phone system.

 

[dawks]

Originally posted by: pcthuglife
i dont know if this would work but why dont you just put a switch between your linksys router and cable modem? One port could go to your linksys with a static IP, and the other to your IP phone system. that way you could use your linksys as your NAT, gateway, etc and not have to worry about passing the other ip on to your phone system.

Well the idea was just to simplify things..

I think we'll stay with the SonicWall and keep the Linksys just as a switch.. I managed to get a few things working more smoothly.

Thanks!