L2TP Overview

Overview

We can use L2TP for various things! For example:

• AAISP Data SIMs can be relayed on to your L2TP server
• AAISP DSL lines can be relayed on to your L2TP server
• You can connect in to AAISP over an L2TP tunnel from a non-AAISP internet connection

See below for the links to more information.

• Also see FireBrick L2TP Server regarding the FireBrick being an L2TP 'server' - e.g. for Data SIMs to connect to.

L2TP from AAISP SIMs/DSLs to Customers own L2TP server

This relays in a data connection from a mobile SIM or a DSL line to your own L2TP server. This enables you to manage the IP addressing, connectivity yourself.

L2TP settings are set by staff, so please do contact them for any changes or setup. The information that would be requested is:

• Target IP (with an optional backup IP) - the L2TP server at your side
• Host - the hostname we present
• Secret - the password we use (optional)

For more information, see:

• Mobile L2TP Handover

L2TP from Customers to AAISP

This is used to connect in to AAISP over a third-party internet connection. This gives you your usual AAISP IP (4 and 6) blocks and access to the internet as if you were conencted via a normal DSL circuit.

• Hostname: l2tp.aa.net.uk
• Plain L2TP without any IPsec
• MSCHAPv2 authentication

For more information, see:

• Incoming L2TP