Question:

My user just asking to me: ” How to Configuring RAS in Windows 2003 route traffic between two subnets ”

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 that are almost gone so I want to create a new subnet (1.2.10.1) and move my statically assigned IP addressed printers to the new subnet. I confgured the second NIC for 1.2.10.1 and set the default gateway as the same. The primary NIC connected to the internal network is 1.2.3.1.

All seemed to work fine for awhile but then our web page wasn’t accessible from the outside. As soon as I disabled the second NIC everything was fine.

I have installed RRAS and set a static route for the second NIC as follows:

1.2.3.0 255.255.255.0 1.2.10.1

Everything appears to be working but I’m waiting for the shoe to drop. Can anyone confirm that I have configured RRAS to function properly?

From : 96.26.208.#

Answer:

You won’t have to change the IPs, but you will have to change the mask on all of them from 255.255.255.0 to 255.255.254.0.

Your network will change from a 10.10.5.0/24 to a 10.10.4.0/23, which will add the .4 range to your addresses (ideal would have been that you would have gone with the .4 to begin with because of the way the subnets play out).

You will need to adjust your Layer 3 switches to accomodate for the growth, as well as the masks on the servers. You can leave the gateway the same if you must, but it will be confusing if you don’t document it well.

That’s really all there is to it. If you have more questions, let me know. Be sure and test it off production hours, first get the networking side done, and then you should be able to add a .4 address and route it to the internet. Then change one server’s mask and you should be able to talk between the .4 and the .5 server you changed.

Also, make sure DHCP is set correctly if you are using it on this subnet.

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