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Server 2003 dual nics on same network

Posted on 2009-05-11
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I have a server 2003 box with dual nics for Websense.  Websense requires one NIC for monitoring and one for blocking.  I have them both on the same subnet with different IP's and everything else the same (GW, DNS).  What's happening is I can access all shares and RDP to the server, but I can't ping my gateway or any other hosts on my local network (nor can I ping the outside world).  DNS is working because I can try to ping internal and it will pick up the IP but not be able to ping the host.  Any suggestions?
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Question by:falban
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by:Kentrix70
ID: 24359390
You should only provide default gateway for one of the NIC's.
If you give both of the nic's a gateway address, I think that
your network infrastructure on the machine will not work.
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falban earned 0 total points
ID: 24363554
Ok, I figured this one out, just had to read the instructions better.  The second NIC needed to be in promiscuous mode to make this work.  All I had to do was unbind TCP/IP from the NIC and now all is well.  I was confused as to why/how they wanted two NIC's on the same network, that just makes a routing mess!!!!
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