Configuring with a WRT54G router

[Pozole]

Hello,

This is probably a basic questions to some but it is typical of the setups I have on my plate.

I have a network served by a linksy WRT54G. This router has 4 ports and wireless antennae.

My question is, how would one integrate an untangle machine in bridge mode with this setup?

I would ideally like to put the untangle between the linksys and the cable modem. How would something like this work outif at all?
Thanks in advance!

[YeOldeStonecat]

I would follow the convention of, say you had an existing wired router..and you had a wireless router...and wanted to add wireless to your network. Instead of simply uplinking your newer wireless router to your wired router using the WAN/Internet port of your wireles router...and creating a double NAT situation, you want to convert your wireless router to just an access point.

Several ways of doing this..but basically..

Say your primary wired router is 192.168.0.1
Your wireless router is 192.168.1.1...change your wireless routers LAN IP address to be in the same range as your wired router, but outside the DHCP pool. For example..change it to 192.168.0.245 (254 or 253 are common octets for APs)

Now disable DHCP on your wireless router...you usually don't want more than 1x DHCP service on the same network.

Next...uplink your wireless router....to your primary router, using a LAN port on each. You will not use the WAN/Internet port of your wireless router.

Additional info...if your wrt54g is not a version 5....try flashing it with DD-WRT firmware. Excellent 3rd party firmware which introduces LOTS of extra features, lets you crank up the output power of its wireless, adds stability and performance. Also allows you to change the role of it to be an AP, as well as convert the WAN/Internet port to a 5th LAN port.

http://www.dd-wrt.com/dd-wrtv2/index.php

[gotkimchi]

***Please note, in your case, you wanted the Untangle in a bridgemode. Let your cable modem handle the routing, insert the Untangle in a bridgemode, then follow by your wireless device. Make sure you disable the NAT and routing on your wireless device.***


http://forums.untangle.com/showthread.php?t=97

Many of our customers do have wireless network. In fact, it is cheaper to buy a router/wireless/switch device than a standard switch. (example linksys, dlink, netgear)

If you have a wireless device, no need to fear. As long as the Untangle server is in front of your wireless device, it will be filtered. You might need to turn off the routing function on your wireless device, since the Untangle server is in front of that wireless device.

http://gotkimchi.com/pictures/smallofficeroutera.png

[nickjoc]

I wonder, since the WRT54G is both the router and Wireless Access point, if you put Untangle in Bridge mode, and connect the external interface to one of the Linksys LAN ports, do you connect the internal interface to another LAN port?

Would that in fact provide filtering on the wireless?

In these reponses I see that you suggest putting your AP on a switch inside, but again the WRT54G is an all in one device.

I have it working in firewall mode but am curious if I can get it working bridge mode.

[gotkimchi]

nickjoc, welcome to Untangle. You will need to separate the Wireless router's functionality. If you want the wireless users to be filtered by the Untangle, you will need to have a wireless AP behind the Untangle.

Typical setup.
modem, Untangle, wireless AP/switch

make sure to disable the wireless router's routing.

[YeOldeStonecat]

I wonder, since the WRT54G is both the router and Wireless Access point, if you put Untangle in Bridge mode, and connect the external interface to one of the Linksys LAN ports, do you connect the internal interface to another LAN port?

Would that in fact provide filtering on the wireless?

In these reponses I see that you suggest putting your AP on a switch inside, but again the WRT54G is an all in one device.

I have it working in firewall mode but am curious if I can get it working bridge mode.

It depends on if you connect something to the WAN/Internet port. If you're connecting to only a LAN port...you are pretty much only using it as an access point/repeater/switch device...although you may end up with IP conflicts and DHCP issues relating to gateway and such...but with nothing plugged into the WAN/Internet port..thus your data is not going through it...you are not using any NAT. The LAN ports, and any wireless clients..when only having local area network traffic...are not crossing the NAT of it's router...so you're not using the router component...thus...no NAT...no firewall. You're just...not using the router feature. When setup as I mentioned above...there's no router feature to disable. You're just not going through it...so no NAT...no router.