Setting up wireless router behind a pix firewall

Posted on 2004-11-03
Last Modified: 2010-08-05
I have recently installed a PIX 501 firewall and a wired switch attached to one of the PIX LAN ports. The PIX is configured to assign DHCP addresses to network users. I now have a Linksys wireless router ( WRV54G) that I need to connect to provide wireless access. The wired and wireless will be part of the same network and subnet.  

My questions are:

1. Where do I attach the wireless router, i.e. from the Linksys WAN port to one of the PIX LAN ports?
2. Do I still need to fill out the WAN details in the Linksys config?
3. Will the PIX still assign DHCP addresses to wireless users or do I confiure the Linksys to assign addresses to wireless users?

I hope this all makes sense. Thanks in advance.
Question by:bchanady
    LVL 12

    Accepted Solution

    What you need is an access point. You can use the Linksys as an AP by leaving the wan port open, disabling dhcp, and assigning the lan port a static ip. Connect a crossover cable from a switch to one ot the linksys lan ports. It will then work as a ethernet to wireless bridge.
    LVL 79

    Assisted Solution

    Agree with public...

    You can use the WRV54G as a pure access-point no problem.
    Plug the LAN Uplink port from the WRV54G into the switch. Don't do anything or plug anything into the WAN port of the Linksys. Assign the Linksys a LAN IP address in the same subnet as the PIX inside, and disable the Linksys' DHCP server.


    Author Comment

    That did the trick! Thanks for your all of your help.
    LVL 79

    Expert Comment

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