How to setup bridge mode?

[Adam Lipscombe]

Folks,

I have BT Max ADSL a FritzBox 7140 VOIP router and a 2Wire 2700 HGV (aka BT Business Hub) router.

On my long line the 2wire router syncs @ 1900, much faster than the FritzBox (@ 800-900). This makes
a considerable difference to the download speed.

But I need the VOIP functionalty in the FritzBox.

Ideally what I would like to do is to use the 2Wire as a "dumb" modem, and the fritzbox as the NAT
router and VOIP box. And for the PC's on the network to use DHCP as normal.
But I dont understand how to do that.

My current understanding is that I can do this by placing the 2Wire in to "bridge" mode
Is that correct? (I am not sure what bridge mode is...)

When I select bridge mode the 2Wire wants me to enter an IP submask - what should I put in here?
Should I disable the 2Wire DHCP server?

I can disable the FritzBox DSL modem and get to to connect via the LAN1 port to the 2Wire.
Should I specify the FritzBox IP address? Or use DHCP? (which server - the 2Wire?)
What should the default gateway be?

Ay pointers gratefully received....

TIA - Adam

[Clint Sharp]

In message <118648806...@proxy02.news.clara.net>, Adam Lipscombe
<adam.li...@qucs.co.uk> writes
>Folks,
>
>Ay pointers gratefully received....
ICBW but bridge mode relies on you having a block of static IP
addresses, I.E. you'll need one static address for the modem, one for
the fritzbox, one for network and one for broadcast. It won't work if
you only have one IP.
>
>
>TIA - Adam

--
Clint Sharp

[Adam Lipscombe]

OK thanks.

What if I leave the 2Wire in ordinary router mode and then allocate a fixed IP address to the
Fritzbox and all the network PCs. i.e. no DHCP.
And then set the PC default gateway/DNS to the fritzbox?
Will the fritzbox VOIP QoS work?

What I am trying to do is to retain the VOIP QoS functionality of the fritzbox (this works very
well) while using the 2Wire to provide the DSL connection.

TIA - Adam

[Java Jive]

Initial Caveat: Though I understand the principles of how it works well
enough, I've not used VOIP, and am not familiar with that model.

Having got that out of the way, I'm not sure that what you want is possible.
Consider ...

You have two modems each with an 'inside' and an 'outside'. The inside of
each will have one or more USB or ethernet style connectors, the outside a
single telephone style connector. The moment you connect the outside of one
to the ADSL line, how are you going to connect the outside of the other to
anything (unless you were thinking of using different phone sockets, but I
would imagine that, if it worked at all, would be a no-no to BT)?

It *might* work if the VOIP on the Fritz can work going to the outside world
through an inside ethernet connection (and if you are using VOIP through a
PC rather than a handset directly connected to it in some way, then there
would have to be at least two of these on the box, or at least a USB
connection - one for the PC, one to connect to the 2-wire). I say
"might", but actually I'd be surprised if it turned out to work like this -
I'd expect the Fritz to have been hard-wired/coded under the assumption that
VOIP would always be connected to the outside world via the ADSL connection.

If it does work, you might find you have to set up the Fritz and that PC
with (a) fixed IP(s) in your internal IP range, for example: 192.168.0.250,
alter the DHCP range on the 2-wire to avoid such IPs, and may have to change
some settings in the Fritz so that it will act as a gateway for its PC.
You may also have to set up the firewall on the 2-wire to allow VOIP traffic
through.

Then you would have:

BT Wall Socket
|
Filter with VOIP?
| |
| | Normal phone
|
2-Wire
| |||
| ||| Other PCs connected normally
|
|
| | VOIP PC
| |
Fritz

Having said all that, why can't you connect a PC using VOIP directly to the
2-Wire? Although you may have to change some firewall rules, surely you
should be able to get that to work? After all, the whole idea of VOIP is
that it's just another form of network traffic.

"Adam Lipscombe" <adam.li...@qucs.co.uk> wrote in message
news:118648806...@proxy02.news.clara.net...

[TheDragon]

"Adam Lipscombe" <adam.li...@qucs.co.uk> wrote in message

news:118650263...@damia.uk.clara.net...

> OK thanks.
>
> What if I leave the 2Wire in ordinary router mode and then allocate a
> fixed IP address to the Fritzbox and all the network PCs. i.e. no DHCP.
> And then set the PC default gateway/DNS to the fritzbox?
> Will the fritzbox VOIP QoS work?
>
> What I am trying to do is to retain the VOIP QoS functionality of the
> fritzbox (this works very well) while using the 2Wire to provide the DSL
> connection.
>

Set the 2 wire as a normal router. Set up a DMZ on the 2 wire with the
Frizbox as the destination IP.

There you have what your calling a bridge.

[Adam Lipscombe]

Thanks for this informative response.

The FritzBox has 2 normal analog phones plugged into it.
I dont use software VOIP on the PC.

TIA - Adam