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[Chrysalis]

you need to isolate the wan traffic.  Most of the discussion on this was in the zyxel thread but similar configuration is done on the billion.

so login to the gui.

On left expand configuration.
Click on LAN.
Click on interface grouping.
You will see a default group with all LAN ports assigned.
Click on add.
Type a name I called it "Bridge"
Now the next bit I am trying to remember correct as I cannot do it now to test what I am saying.
In wan interfaces press the left arrow to move the wan interface to grouped wan interfaces.
In lan interface move the correct port to the grouped box, in my case its P4.
I dont know if the top box for isolation needs ticking, I ticked it.
Then click apply.

All should work properly after this, providing you using the right lan port that you grouped.

[jid]

you need to isolate the wan traffic.  Most of the discussion on this was in the zyxel thread but similar configuration is done on the billion.

so login to the gui.

On left expand configuration.
Click on LAN.
Click on interface grouping.
You will see a default group with all LAN ports assigned.
Click on add.
Type a name I called it "Bridge"
Now the next bit I am trying to remember correct as I cannot do it now to test what I am saying.
In wan interfaces press the left arrow to move the wan interface to grouped wan interfaces.
In lan interface move the correct port to the grouped box, in my case its P4.
I dont know if the top box for isolation needs ticking, I ticked it.
Then click apply.

All should work properly after this, providing you using the right lan port that you grouped.

Thanks for this, I think I have the right settings. Attached below.

WAN cable in Port4 and then another cable in port 2 for getting the stats.

[Chrysalis]

looks good.

[jid]

looks good.

After doing this it worked for a while and then hung again. Shall drop Billion an email, back on the HG612 now. Getting the same sync speed with that now so may not even bother keeping the Billion.

[kitzuser87430]

something like this may work http://forums.smallnetbuilder.com/showpost.php?p=74960&postcount=9

Ian

[Chrysalis]

something like this may work http://forums.smallnetbuilder.com/showpost.php?p=74960&postcount=9

Ian

that is to allow accessing the lan over the wan cable.  Even better than the way he tried so yeah he can try it.

[les-70]

  Is there a good reason why you can't just use the 8800NL as intended - a modem and router?  The 8800NL copes well with full loading.

[lloyd]

  Is there a good reason why you can't just use the 8800NL as intended - a modem and router?  The 8800NL copes well with full loading.

I'm interested in the answer to this question, as I intend to use a 8800NL as a modem and router (no clients), together with a Draytek 2830 (all clients) when I get my FTTC enabled in two days time. (My master socket is in the attic, where I will put the 8800, and continue with the Draytek for WiFi etc.)  Why use PPPoE Bridged mode, when I can simply route between the draytek and the 8800NL?

Thanks

[loonylion]

  Is there a good reason why you can't just use the 8800NL as intended - a modem and router?  The 8800NL copes well with full loading.

I'm interested in the answer to this question, as I intend to use a 8800NL as a modem and router (no clients), together with a Draytek 2830 (all clients) when I get my FTTC enabled in two days time. (My master socket is in the attic, where I will put the 8800, and continue with the Draytek for WiFi etc.)  Why use PPPoE Bridged mode, when I can simply route between the draytek and the 8800NL?

Thanks

bridge mode prevents a double NAT situation which can play havok with things that need to be forwarded through the firewall

[lloyd]

  Is there a good reason why you can't just use the 8800NL as intended - a modem and router?  The 8800NL copes well with full loading.

I'm interested in the answer to this question, as I intend to use a 8800NL as a modem and router (no clients), together with a Draytek 2830 (all clients) when I get my FTTC enabled in two days time. (My master socket is in the attic, where I will put the 8800, and continue with the Draytek for WiFi etc.)  Why use PPPoE Bridged mode, when I can simply route between the draytek and the 8800NL?

Thanks

bridge mode prevents a double NAT situation which can play havok with things that need to be forwarded through the firewall

Thanks.  As double NAT seems to be working with this setup on adsl I'll give it a go with fttc.

[gyre]

I'm using a draytek 2920 connected using 2 cat5 cables to my 8800nl configured in bridge mode.

I've taken folks' advice and have one cable for pppoe and the other for just accessing the modem for its stats.
I've used the gui to isolate the 2 ethernet ports as suggested.

Been up nearly a week without hangs.  Thanks folks.

-- gyre --

[Oldjim]

I am not sure if this is the correct place - if not please move it - What should be the MTU setting for this router when using it as a VDSL Modem/Router
The reason I am asking is because I am confused 
In several places the setting is stated as being 1492 when using the BT Modem and also 1492 when using the built in modem
But from the Sky and TalkTalk instructions when using their combined modem/router it should be 1500
A brief explanation as to why would also be appreciated 

[loonylion]

I would guess 1500 because its not using ATM anymore, but just a guess. 1492 accounted for ATM framing overheads

[Chrysalis]

1492 for FTTC
1500 for ADSL

1500 can be used for FTTC with some adjustments to jumbo frames, but if you dont know what thats about do 1492.

[Oldjim]

So does that mean that TalkTalk do that automatically or that they don't use PPPOe
http://help2.talktalk.co.uk/what-mtu

Please note: There is one exception to this rule with TalkTalk fibre routers. They normally have the MTU set to 1500 and you should not change this to 1432.