Static IP's

KingDing

KingDing

KingDing

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18 Oct 2002
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513
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Dunno ??
Hi Guys.
I have a new ISP which comes with 4 static IP's.

I have a router/modem, 2 webservers and 4 pc's/laptops.

What I would like if possible is:

The Webserers to have a static ip address each.
The pc's/Laptops to have a internal DHCP address each.

Is this possible and how? hardware etc?
 
Can i do it like this..

DSL ---> Old modem/Router ----> Webserver & new router

So it splits at the old router, lan 1 to webserver (static ip 1), lan 2 to new router (static ip 2) running internal dhcp network...

would this work? i know you gonna tell me to use a linux box. lol
 
could do it with DMZ's, but then the web servers would be exposed to the net. I havent actually done it, but had been in talks with the net techs at my old work on how to do it.
 
Easy to do with tomato/dd-wrt or their variants. Not many consumer routers do it though e.g. some drayteks.
 
You mention router/modem. How is this service being provisioned to you? Is this a proper 'business' connection with an Ethernet presentation or just some kind of ADSL with a handful of IPs?

Edit, sorry - it appears I cannot read...

Edit, if it were me I would grab an old Netscreen 5GT-ADSL off the bay, will do what you want and is a proper firewall.
 
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You need somethig that can support simultanious static NAT and Overloaded NAT.

I'd scour that world renound online jumble sale for a cisco 800 series. Note, pretty much any router running cisco IOS 12.x will do this but 800s arn't modular so make sure you get the one that supports your connection type.

Looking on afforementioned website there are a couple of 877s for £120 which is a billy bargain. They come with the K9 IOS aswell which supports proper secure VPNs (including 3DES i think). Which is handy.
There are probably some lower models that will work with ADSL2+ but i know for sure that one will do ADSL2, 2+ and cable if you want it to (a mate of mine has the wifi variant :) )
 
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