Fritzbox 7590 as third party router on Sky Superfast Broadband

[SaschaNK]

Hi all,

I have read several threads about connecting thrid party routers to the sky network to replace the SR203 original router and all come down to using DHCPv4 Option 61 instead of PPPoE. Aparently Fritzbox does not support that. 

--> is this true for the 7590? 

Other people claim that most openreach connections (about 80%) in the UK are on native IPv6 anyway and don't need that

--> how can I find out if I am one of them or not?

And last but not least has anyone ever managed to set up a Fritzbox 7590 working in the sky network? 

[Chrisee]

@SaschaNK apparently it is the msnufacturer of the exchange kit that controls whether DHCP6 PD method works or it doesnt but there is no way of knowing in advance whether your line will work or not without trying it. 

[SaschaNK]

Thanks for the response! Is there a way to find out if thats the issue or just some of my settings being wrong? I can see in my fritzbox that it has a DSL connection but wont give me any internet access. I assume that is due to the (probably?) not supported DHCPv4 option 61 of my fritzbox. 

So I guess I have to try pure IPv6 for once and if that doesn't work it seems to be the case that the DHCP6 DP is not working in the exchange kit.

Are there any special settings for IPv6 I should be aware of?

[Chrisee]

@SaschaNK it could be your other settings so post pictures of the relevant pages and hope somebody sees the post and understands the Fritzbox. While Sky do support IP6  DHCPv6 PD is used to authenticate the connection which then runs a dual stack set up.

[-rpnz-]

Hi @SaschaNK 

Coincidentally I'm actually testing the FRITZ!Box 7590 for compatibility of a new feature now, so I have access to the interface and can share with you a screenshot of the IPv6 settings.  These settings should allow you to connect, if you are within the 70% of Openreach's footprint that supports Lightweight DHCPv6 Relay Agent (LDRA), that we require for authentication:

The `IPv4-Anbindung automatisch bestimmen` or `IPv4 Determine Connection Automatically" is to do with the new feature I'm testing, and you won't see that option yet. Future people reading this post  should enable this option if it's available.

[SaschaNK]

Hi @-rpnz- 

Thanks a lot for the settings and I guess I am quite lucy having you work on exactly that model. I seem to get connection but no internet. I have also no idea if the connection happens through IPv4 or IPv6

Here are some screenshots of my connected fritzbox

And these are the settings I used (the IPv6 page I set exactly like you had it)

I might have messed up something there from all the previous tests?

Regards

Sascha

[-rpnz- · Accepted solution]

Hi @SaschaNK 

On FTTC (both VDSL2 and G.Fast) services, we require VLAN tag with ID 101.

In your last screenshot, under "Account Information" -> "Connection Settings" -> "VLAN Settings", enable "Use VLAN for Internet access", and set VLAN-ID to 101.

Leave P-Bits empty or zero.

Assuming the IPv6 tab matches my screenshot, then that should do it; if not, then I'm afraid you might be in the unlucky ~30% without LDRA support.

[SaschaNK]

Hi @-rpnz- 

Thank you for that hint, that did the trick!