I have a Windows 2003 file server with two NICs. This server houses our website as well as print queues, applications, etc. I have 254 IP address on 1.2.3.0 that are almost gone so I want to create a new subnet (1.2.4.0) and move my statically assigned IP addressed printers to the new subnet.
I confgured the second NIC for 1.2.4.1 and left the default gateway blank. I enabled RRAS and set a static route for the second NIC as follows:
1.2.3.0 255.255.255.0 1.2.4.1
All seems to work fine for awhile but then our website becomes unavailable from outside the firewall with a “page not found” error. Internally it is still accessible. As soon as I disable the second NIC everything was fine.
My guess is that there is something I need to add to the CISCO ASA firewall. I already have a static NAT route for HTTP and HTTPS from the server (configured to the IP address on 1.2.3.4 subet) to its public address. I don’t see a way to add the IP address of the second NIC as I get an error that the rules overlap.
Can anyone hlep me resolve this issue?