Configuring multiple NICs on Win 2003

saunaG
saunaG used Ask the Experts™
on
I have a Windows 2003 Server with multiple NICs.  It does a bunch of things including email server and file sharing over a vpn.

The addresses of the NICs are 192.1.1.100 and 192.1.1.101
I can set my email program to use a particular IP.
I want to separate my email traffic from the rest of the traffic.
I have a 2 routers, one is at 192.1.1.5 and the other 192.1.1.10

I want NIC 192.1.1.100 to use 192.1.1.10 as the gateway and
NIC 192.1.1.101 to use 192.1.1.5 as its gateway.

I can't seem to get this to work... When i change the network properties of the NICs so they have different gateways i get a warning and i ignore it... then nobody has access to anything at all.

I have read about using the route add command but it seems it is only applicable if the two NICs are on different subnets - that is not the case here.

Is there a way to seperate the traffic among these NICs??

Thanks
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Hi
when you setup NIC 192.1.1.100 to use 192.1.1.10 gateway, is it going directly to the router or through switch and what warrning message you get exactly? same question is fo the NIC 192.1.1.101 to use 192.1.1.5 gateway. What is the link between these two routers? are there other interfaces on these routers connected to somewhere else?
Commented:
I would suggest that you put the NIC's on to separate subnets.
Eg. 192.1.1.100 & 192.1.2.100

Author

Commented:
the warning i get is:
Warning - Multiple default gateways are intended to provide redundancy to a single network(such as an intranet or internet). They will not fumction properly when the gateways are on two separate, disjoint networks(such as one on your intranet and one on the internet). Do you want to save this configuration?'

there is no link between the routers:
Server with 2 NICs - each one connected to a router.
each router connected to its own DSL modem
CompTIA Cloud+

The CompTIA Cloud+ Basic training course will teach you about cloud concepts and models, data storage, networking, and network infrastructure.

Commented:
So why are both of your ip addresses in the same subnet? I can't see that working until you change one of them to be on a different subnet as I suggested above.

Author

Commented:
why can't they be on the same subnet?


i am trying your suggestion now - 192.1.1.100 and 192.1.2.100 ....

Commented:
It would probably screw up your routing tables.
SaunaG
two default gateways for same network...that doesnt make sesne..and the warning is self explainatory..you cant have two default gateways on one network..it will creat redundancy for packets to look for a gateway, ultimately..traffic will not reach the intended destination. Caltor is right..you have to have them on seperate networks..and if you have windows 2000 server, your RRAS will take care of routing as well,although u need to configure that.

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial