Tuesday, March 11, 2008

How to set up the WRT54G as a switch/bridge

Lots of people report problems with the router function in the Linksys WRT54G. See here for example.

I have a broadband router upstream of my WRT54G, so I thought that I might be able to avoid the network problems I was having by making my WRT54G work simply as a switch or bridge. This is easily done.

Connect a computer to the WRT54G and use a web browser to log in to it. (Device default IP address 192.168.1.1. Default user name blank and password "admin". ) Change the configuration of the WRT54G as follows:
  1. Under Settings/Basic Settings, turn the DHCP server off. CLICK THE Save Settings BUTTON.
  2. Under Settings/Advanced Routing, change the Operating Mode from Gateway to Router (I know, confusing terms). CLICK THE Save Settings BUTTON.
Plug the ethernet cable from/to the upstream router into one of the numbered jacks, NOT the Internet jack.

That's all there is to it. It works like a charm! Devices connected wired-ly and wirelessly are bridged to the network devices upstream and the Internet beyond.

My device specs: Linksys WRT54G, Firmware 8.00.2

17 comments:

brucearthurhall said...

Thanks

This works for me also. However, every day (always overnight), the computer will not connect to internet and all I do is unplug the Linksys and plug it back in and it works?

Thoughts?

John Redmond said...

I think it may be a dhcp issue. The computer may be trying to renew an address and the Linksys doesn't respond to the computer's satisfaction. Try giving the computer a static IP.

Pierre said...

Just remember one thing

If your router runs with 192.168.1.1 as default as well ( just like the linksys ) u'd need to change the IP of 1 of the 2 so theres no conflict, else it wont work.

Matthew said...

Following this example...

I have an ADSL modem upstream from the WRT54G that has a gateway address of 192.168.0.1, and my WRT54G has an address of 192.168.1.1... Do I have to change one of the interface addresses on the WRT54G to be on the 192.168.0.x network? If so, which setting is that?

My modem has DHCP capabilities... that should assign IPs through the WRT54G switch to the computers connected to it, right?

I'm a networking newbie with some issues...

Scootawho said...

This saved my ass. Thanks.

Though, at least on my version, the settings are under "setup". Otherwise, the steps were the same.

Haakon B. Dahl said...

Thank you for the concise explanation! Seems everybody wants to know why the question is asked (sure you wanna do that bro?) instead of getting to the point.
You nailed it.

Jeremy Williams said...

That was easy!

thank you so much, just what I was looking for!

Jeremy

Jeremy Williams said...
This comment has been removed by the author.
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Hugo said...

+1

Works for me!

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patrick iversen said...

Excellent post, solved a issue I had problem solving. Tried using a splitter which really didn't work but refactored the old linksys which wasn't in use any more did the trick.

Lacy Brown said...

THANK YOU for this guide! So simple to set up the router, after trying...
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Graham Whaley said...

Thanks! This saved me a bunch of digging around... and now I have a happy printer and second access point :-)

Samuel Kaniaru said...

hey guys could u help on this i have connected my router the same way and it has worked, my question is hw do i get the ip that i have forwaded to work

Graham Whaley said...

I'm not sure I understand your question - the wrt54g should now be a 'switch' and just pass traffic across the ports - so, for instance, the static IP or DHCP IP addresses being used by your devices/main-router? should just pass through it to 'the right place'.
btw, I've had to turn mine off until I do some more reconfigure - the default IP (192.168.1.1) ended up the same as my external dns server, and thus I could not resolve any names, and my internet thus appeared 'down'. I expect I just have to move the wrt54g IP to some other range and all will be fine...