Sunday, May 15, 2011

Configure bridge mode on the 2Wire 2701HG-B Gateway

Bridge mode disables all routing and DHCP services on the device and allows it to function only as a DSL modem. This enables one to use a more feature-rich router behind the 2Wire device.

Use the following instructions to configure bridge mode on the 2Wire device.
  • Connect an ethernet cable from your client directly into one of the LAN ports on the 2Wire device.
  • From your web browser, goto http://gateway.2wire.net/mdc/
  • Broadband Link->Configure->DSL and ATM Settings->disable ATM PVC Search
  • Broadband Link->Configure->Internet Connection Settings->Connection Type->Direct IP (DHCP or Static)
  • Advanced->Configure Services->uncheck Enable Routing
  • The gateway is now functioning in bridge mode. Undo the changes to disable bridge mode.
When the device is functioning in bridge mode, you will no longer be able to access it directly from your web client. Use the following instructions to access the MDC (modem diagnostic console) in bridge mode.
  • Connect an ethernet cable from your client directly into one of the LAN ports on the 2Wire device.
  • Set the static IP of the client computer to an IP in the following range 192.168.1.64-250
  • Set the netmask of the client computer to 255.255.255.0
  • Set the gateway of the client computer to 192.168.1.254
  • Restart your network interface
  • From your client computer, browse to http://192.168.1.254/mdc/
Note: When routing is disabled, NAT and the DHCP Server are disabled.

2 comments:

The Jaded Clerk said...

I was wondering if you could tell me how to do the opposite of running this modem in bridge mode. I'm switching from DSL to cable, and I want to buy a simple cable modem, but still use the wireless and DHCP in the 2701HG-B.

tsengf said...

To reverse the process, you will first follow the instructions in the second half of the article in order to access http://192.168.1.254/mdc/. At this point, reverse the options that you had selected in the first half of the article. The gateway should now be functioning in non-bridge mode. Alternatively, I believe you can do a hard reset of the gateway via the reset button on the device.