I've been tearing my hair out trying to get BT Infinity working with the Airport Extreme, so that I don't have to use BT's Home Hub (VDSL modem direct to AEBS). Just thought I'd give people a rundown of what worked for me.
Now before setting up the AEBS, you have to just connect everything up using your HomeHub, log into it and get your DNS Server details (also, make sure you connect to the web ok).
Then go to Airport Utility -> Internet -> Internet Connection tab. Connect Using PPoE. Account name bthomehub@btbroadband.com and password BT. Service name blank. Connection is Always On and Disconnect if Idle is never.
Now in the next tab, TCP/IP, you have to put in the DNS Server details you got from your HomeHub. (I didn't think of this originally, which caused a huge amount of wasted time).
In the DHCP tab, make sure you have given a range big enough for however many computers you have.
Now this is the weird part, plugging the VDSL modem into my WAN port wouldn't work, but, plugging into one of the LAN ports it works fine (I still can't figure that one out, but hey). I originally thought this would stop the firewall from working, but i tested it on ShieldsUp and it was fine. I even gave someone my IP and he couldn't access the ports.
Do remember, the AEBS firewall isn't great. Its only a NAT firewall (fine for most of us), and there is no UPNP so you will have to open a port for file sharing and things like that. Also, it doesn't stop people pinging you.
Those small issues aside, I am now running an AEBS instead of a BT HomeHub, and its working great
Now before setting up the AEBS, you have to just connect everything up using your HomeHub, log into it and get your DNS Server details (also, make sure you connect to the web ok).
Then go to Airport Utility -> Internet -> Internet Connection tab. Connect Using PPoE. Account name bthomehub@btbroadband.com and password BT. Service name blank. Connection is Always On and Disconnect if Idle is never.
Now in the next tab, TCP/IP, you have to put in the DNS Server details you got from your HomeHub. (I didn't think of this originally, which caused a huge amount of wasted time).
In the DHCP tab, make sure you have given a range big enough for however many computers you have.
Now this is the weird part, plugging the VDSL modem into my WAN port wouldn't work, but, plugging into one of the LAN ports it works fine (I still can't figure that one out, but hey). I originally thought this would stop the firewall from working, but i tested it on ShieldsUp and it was fine. I even gave someone my IP and he couldn't access the ports.
Do remember, the AEBS firewall isn't great. Its only a NAT firewall (fine for most of us), and there is no UPNP so you will have to open a port for file sharing and things like that. Also, it doesn't stop people pinging you.
Those small issues aside, I am now running an AEBS instead of a BT HomeHub, and its working great