XP bridge: Wireless and LAN - Can't get it to work !

[Alain Caillet]

On this TinkPad laptop with two NIC:

- a builtin LAN port and
- a PCMCIA wireless card used to connect to an router Access Point,
I wish to bridge the two together so that an IP telephone connected to the
LAN port with a cross over ethernet cable can used on the local area
wireless LAN.

In WindowsXP Network Connection windows, the Local Area LAN IP shows as
169.254.32.82, the Wireless as 192.168.0.14. Both connection are selected
and bridged. A third connection listed Network Bridge is created but its
IP is also 169.254.20.176 which indicate that the bridge didn't work and
didn't aquired an IP from the router DHCP. The two NIC shows as activated
and bridged.

None of the two NIC connection is configured for ICS or firewall and they
both, using the command: netsh bridge show adaptor , report compatibility
mode enabled.

I tried to locate all articles on the subject on MS site but none detailed
what should be the TCP/IP configuration of each connection in the bridge:
is it normal that the LAN and Wireless in my case have now NO TCP/IP
settings available (when bridged) and that only the bridge TCP/IP can be
configured?

As soon as the bridge is created, the laptop looses internet access
through the Wireless connection. I read the article:
http://www.microsoft.com/windowsxp/expertzone/columns/crawford/02april22.asp
which confirms that it is possible to bridge a Wireless and LAN NIC but I
don't seem to be able to make it work.

Suggestions? Thanks in advance. Alain

 

[[BnH]]

Scrap all the MS guides and try this.

I believe your network is set up in the following way :

Wireless AP ~~~~ ~~~~ Laptop Wifi | Laptop LAN <---- x-over -----> IP
telephone ?

As the topology is almost the same as if you are using a Ethernet modem, try
the following :

- Set your AP address to be anything but 192.168.0.1 [ 192.168.0.100
perhaps? ]

- In the Wireless properties : Enable Internet Connection Sharing

The IP of your Wifi card will become 192.168.0.1
Once that is set, set your gateway and DNS to point to your AP.
[192.168.0.100]

- Once it is enabled, any network device connected to your laptop will be
able to pass through TCP/IP request to your Gateway [AP]
Set your laptop NIC to use different IP class [192.168.1.x : note the 1.x ]

Hopefully your IP telephone uses TCP/IP protocol, so you can reconfigure the
IP telephone to use a 192.168.1.y IP address
and points its gateway to your laptop NIC.

Good luck

=bob=

 

[Alain Caillet]

Thanks, Bob
Indeed my configuration is what you describe. The Wireless AP is connected
to a cable modem.

I can't wait to go home and try. I hope the D-Link AP let me set it's
address for soething other than 192.168.0.1 it is at now.

The IP phone, a GrandStream BT-101, uses TCP/IP. I wish I could have left
it configured to aquire IP from the DHCP but if is what it takes to get it
work ...

Don't know why the MS instructions don't work, it would have been such an
elegant use of the bridge. It bugs me :-(

Thanks again. Let you know how I did

Alain
=======================================================

Scrap all the MS guides and try this.

I believe your network is set up in the following way :

Wireless AP ~~~~ ~~~~ Laptop Wifi | Laptop LAN <---- x-over -----> IP
telephone ?

As the topology is almost the same as if you are using a Ethernet modem,
try
the following :

- Set your AP address to be anything but 192.168.0.1 [ 192.168.0.100
perhaps? ]

- In the Wireless properties : Enable Internet Connection Sharing

The IP of your Wifi card will become 192.168.0.1
Once that is set, set your gateway and DNS to point to your AP.
[192.168.0.100]

- Once it is enabled, any network device connected to your laptop will be
able to pass through TCP/IP request to your Gateway [AP]
Set your laptop NIC to use different IP class [192.168.1.x : note the
1.x ]

Hopefully your IP telephone uses TCP/IP protocol, so you can reconfigure
the
IP telephone to use a 192.168.1.y IP address
and points its gateway to your laptop NIC.

Good luck

=bob=

On this TinkPad laptop with two NIC:

- a builtin LAN port and
- a PCMCIA wireless card used to connect to an router Access Point,