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Wireless routers and a hardware firewall

Last response: in Networking
November 11, 2010 5:37:19 PM

Hello, I am trying to design my home network.

I have a uverse modem and I am trying to connect a second wireless router to my network.

Can I put a hardware firewall Cisco ASA 5505 between the uverse and the wireless router connected via ethernet cable? Both are performing NATing.

uverse --- firewall --- wireless router
November 11, 2010 6:00:11 PM

What are you trying to accomplish?

create a separate network or use the second router as an additional wireless access point?
November 11, 2010 6:11:42 PM

Trying to create 2 separate wireless networks.

I understand 2 NATing devices may be an issue?
Related resources
November 11, 2010 6:27:07 PM


do you want the PC on the two wireless networks to be able to see each other?

If so, you can name the SSID different but still be on the same network by disabling the second router's DHCP, change the LAN IP address, and connect the network cable to one of the four LAN ports.

Otherwise you could assign a static IP to the second router based on the Cisco's IP scheme and set that IP into the DMZ on the Cisco should you experience problems
November 11, 2010 6:33:53 PM

I do not want the laptops to see each other. They should be on two different networks.

Not sure how this setup will work.

Uverse router is using NAT ---> going to a Cisco firewall ---> going to a wireless router using NAT.

I have heard double NATing breaks some protocols.
November 24, 2010 7:52:37 AM

If you're trying to use one wireless router to split it up, unless the thing can do multiple SSIDs, then no, you can't. You'd need two wireless routers. Once that's done, you wouldn't really need the FW anymore unless you want that extra security there.

In that scenario it would be:


Otherwise, just hang two wireless routers off the uverse router if it has the ports to do so.

I can't see how else you'd do that simply.
November 25, 2010 7:47:50 AM

You can use the second router as a wireless access point with different SSID. First lapton uses the router 1 then second laptop uses the access point.