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Can I use a guest wireless router with ISA on a separate network adapter?

Posted on 2008-01-26
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Last Modified: 2013-11-09
Hello experts, I need advice to use isa with a wireless access point or router.

I have an ISA 2006 firewall with 4 network adapters.  1 Internet, 1 Lan, and 1 wireless being used.  I'd like to give internet access to guests in our office bypassing our network using the ISA firewall configuration and rules.  Can I put the wireless on 1 adapter and route the wireless users directly to the internet network?  What network rules do I need and what isa policy is appropriate?

The isa firewall is on 1 machine and my dc is a sbs server on a different machine.  My first attempt with the configuration caused rpc errors that killed my vpn and terminal service authentication.
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Question by:wessir
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Keith Alabaster earned 2000 total points
ID: 20753589
Certainly can be done - its common practice

Not sure how you would be getting ip addresses for these users?
In ISA you would create a new network from the gui on a 3rd nic (like a DMZ)
You will decide if these users will route or NAT to the Internet (default is route - suggest you change this to NAT but will depend on the addresses they are picking up).
You'll add the new ip address range that will be used on that network
You'll amend the LAT tables to make sure this address range is NOT included in the LAts of the other networks you have defined within the ISA gui. (none must overlap)
you'll add access rules in the firewall policy from new_network_name to external allowing the protocols you want and you'll set that rule to All Users

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by:wessir
ID: 31425341
Thanks, I will try it soon.
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