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I apologize for my idiocy, but I'm going to ask anyway.
Let me see if this is correct...
You currently have:
ADSL router that does NAT, one static IP which is the current home based web server, and the rest of your machines run NAT correct?
Or do you have.. an ADSL router, one static IP, which is currently assigned to the ADSL router, which then forwards those packets destined for the webserver. workstations ect..
And what you're looking to do:
Assign multiple static IP's to the ADSL router, and then forward packets based on incoming IP address to the appropriate internal webserver?
I think I may have posted previously that the router model you do have doesn't support sub interfaces on the WAN link ... meaning you can't have 12.222.222.222 12.222.222.223 both assigned at the same time to your ADSL router.
A couple solutions...
Find a router that supports multiple sub interfaces..
Find out which encapsulation type your ISP support PPPoE, PPPoA, or bridged ethernet, and if you're bound by the type they currently offer, meaning if you're currently setup as PPPoE can you used bridged.
In my opinion... if you are able to use a bridged connection, then make a purchasing decision based on that, find a bridging DSL router that works with your particular service. Of course that does cost a little bit of money of course.
At that point. Either setup one of the current machines.. or build a new one to use as a firewall.. I'm going to jump out on a limb here and assume you're using the Linux version of Apache.
With Linux firewall you can do a couple of things.
Setup multiple interfaces.. for instace.
eth0 0.0.0.0
eth0:0 1.1.1.1
and so forth, then configure the firewall to route internally to the specific machine based on either interface or IP address.
I hope this makes sense and wasn't too long winded.
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