How do I get a Netopia 3000 DSL modem to work in bridge mode?!

May 14, 2012 4:03 PM

I'm going absolutely crazy here! I previously had a 2Wire DSL modem set to bridge mode with the Linksys router handling PPPoE auth. I recently moved and I'm trying to do the same thing with a new Motorola 3347 (Netopia 3000) and I can't get it to work to save my life.

On the modem I set the following:

DHCP Server: Off
Enable System Bridge: On

I then connected the router's WAN port to one of the modem's ethernet ports. The WAN status on the router shows a WAN IP of 0.0.0.0 and a status of "Connecting..." indefinitely.

I also tried unselecting Enable Gateway Option on the modem, which didn't do anything.

I've been at it for hours and I cannot get this to work. I just want the modem to act as a simple modem, passing the public IP to the router and not doing any routing or anything else. Please -PLEASE- help me get this working...

posted by jluce50 to computers & internet (4 answers total)

Have you tried turning on DHCP on at the modem? That setting on a modem usually doesn't mean NAT, it just means that it will use DHCP to communicate the public IP address to whatever's plugged into it.
posted by strangecargo at 4:12 PM on May 14, 2012

I've tried just about every combination of the above settings I can think of. However, the few places online that address this situation all say to disable DHCP when enabling bridge mode.
posted by jluce50 at 4:28 PM on May 14, 2012

You definitely need to disable DHCP to be in bridge mode.

It looks like the web interface may be somewhat finicky. I don't have one of these devices, nor do I know what the user interface looks like, but I'd guess you're not changing the settings in whatever magic sequence is required for them to take effect.
posted by RonButNotStupid at 4:35 PM on May 14, 2012

I followed the steps in that blog post when I first started messing with this. No dice...
posted by jluce50 at 4:38 PM on May 14, 2012