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3 NIC's - will this work?

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3 NIC's - will this work? - 4.Aug.2006 5:07:51 AM

mhowells

Posts: 32
Joined: 18.Mar.2003
Status: offline

ISA Server 2004 has 3 NIC's:

1) External (ISP)
2) Internal - 172.16.0.0
3) Internal - 192.168.1.0

I have both Internal networks defined in the Internal network object list.

Only one default gateway is defined to the External (ISP).

In order to route between the 172 and 192 networks I created an access rule called "Internal Routing."

Within this access rule I created two subnet objects for each of the 172 and 192 networks and have them both in the FROM and TO settings within the "Internal Routing" access rule

This seems to work but is there a better way to do this? I tried to define the 192.168.1.0 network as a separate Network object and then create a Route relationship between the 172 (Internal) and 192 network but traffic would simply not flow.

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RE: 3 NIC's - will this work? - 4.Aug.2006 3:26:12 PM

tshinder

Posts: 47659
Joined: 10.Jan.2001
From: Texas
Status: offline

Hi M,

Check the DMZ articles on this site and the articles on ISA firewall Networks.

You need to create a second ISA firewall Network for the third Network.

HTH,
Tom

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(in reply to mhowells)

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