I am going to be setting up a new network for our business. We are going to have a fractal T1 (768) and a DSL line. I want to run all of my servers on the T1 line and the internal users will use the DSL. I am looking for a firewall to use and need some good advice on getting a firewall that can have two WAN interfaces and one internal interface.
I would be using NAT to assign IP address to all of the computers in the network.
Right now I have the following servers on the T1:
Windows 2k server, IIS 5
Windows 2k server, SQL 2000
Windows 2k, Domain Controller/Internal DNS server
Windows 2k, Exchange 2000
I would assign all of the server an IP address that would go through the T1 line and all of the other computers will use DHCP and run off of the DSL.
I read a little on the Cisco PIX firewalls and they can run multiple interfaces. Is this all I need? Are there are other firewalls that can forward packets based on the internal IP address through a specified WAN interface?
Would I have all of the computer point to my DNS server (which runs on the T1) and then send their network traffic through the DSL?
Any help would be greatly appreciated.