Dual Nics in Different Subnets on Server 2008

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I want to set up dual NICs on two 2008 Servers

Eth0 will be in 10.210.36.0/16 with default gateway of layer 3 switch
Eth1 will be in 10.210.36.112/16 with no default gateway

I do this because Eth0 is in different switch altogether than Eth1. So if I
lose the switch, I should fail over to Eth1 network.

I get an error message that says that having the NICs with different default
gateways will cause serious problems.

I set up Eth0 with IP and give a default gateway of layer 3 switch. Ping
from all other subnets works great. Ping to Eth1 does not work at all. Do I
need a DG on Eth1?

Any help you can give would be appreciated.

James
.

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