2 Nics and setting preferred route to net


I've got a machine with two NICs.

I'd like to set a preferred route to the Internet via one of the NICs and for the machine to only use the other route when the first one is unavailable.

I've set the Route Metric for the 'Backup' Route to 2 and after a reboot the machine appears to do the right thing and packets travel via the correct NIC.  However after a few days the 'Backup Route' gets used.

How can I force the Primary Route?

C:\Documents and Settings\Administrator>route print
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 02 e3 03 e3 ba ...... NETGEAR FA311/312 PCI Adapter
0x3 ...00 a0 c9 c8 08 27 ...... Intel(R) PRO Adapter
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
       1       2       2       2       1       1       1       1       2       1       1
Default Gateway:
Persistent Routes:

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These are your two default routes:       1       1

They both have the same metric. Surely your backup should be set at a higher metric than you primary?

You can adjust the metric for the gateway in the network connection property page (under tcp/ip settings/advanced)

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bendeckoAuthor Commented:
Wonderful Muterobert!

I'd fixed the 'Interface Metic' to 2 - but I needed to change the dialogue above - the 'gateway metric' to 2.

Works great now.

Thank you

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