Solved: Using a wireless router as an access point

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dalto

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I need to replace my wireless access point with something a little faster. A friend of mine had a spare wireless router that he gave me for free. I don't really need another router as I have a custom gateway in place.

I was wondering if I set the router up and just plugged the rest of my network into one of the LAN ports if I could use it as a wireless access point? It should pass the wireless traffic across the LAN ports I think. Since I would have nothing plugged into the WAN side none of the firewall/routing/NAT functionality would available but that is basically what I want.

Am I missing some obvious reason why this would not work?
 

TerryNet

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You're right so far. Also, disable the Dhcp server on the 2nd router. Then, in case you want to access it conveniently, assign it a LAN address in the same subnet as the primary router, but outside the Dhcp server's address range. Then connect the two routers by LAN ports with a cross-over cable unless either has auto-sensing ports.
 

TerryNet

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You're welcome. When you get it working please mark this 'Solved' using the Thread Tools at the upper right.
 

JohnWill

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Here's the complete list of configuration changes to use the router as a WAP.

Connecting two (or more) SOHO broadband routers together.

Note: The "primary" router can be an actual router, a software gateway like Microsoft Internet Connection Sharing, or a server connection that has the capability to supply more than one IP address using DHCP server capability. No changes are made to the primary "router" configuration.

Configure the IP address of the secondary router(s) to be in the same subnet as the primary router, but out of the range of the DHCP server in the primary router. For instance DHCP server addresses 192.168.0.2 through 192.168.0.100, I'd assign the secondary router 192.168.0.254 as it's IP address, 192.168.0.253 for another router, etc.

Note: Do this first, as you will have to reboot the computer to connect to the router again for the remaining changes.

Disable the DHCP server in the secondary router.

Setup the wireless section just the way you would if it was the primary router, channels, encryption, etc.

Connect from the primary router's LAN port to one of the LAN ports on the secondary router. If there is no uplink port and neither of the routers have auto-sensing ports, use a cross-over cable. Leave the WAN port unconnected!

This procedure bypasses the routing function (NAT layer) and configures the router as a switch (or wireless access point for wireless routers).
 
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