Bonding FireBrick: Difference between revisions

 

*More info on http://www.firebrick.co.uk/fb2700/bonding.php

ADSL and FTTC lines can be bonded, typically A&A customers bond a BT and a TT line for greater resilience. Multiple FTTC lines can be bonded together too in the same way.

 

 

==Configuration==

 

Set up port 3 to connect to the second modem you have, i.e.:

<ppp port="WAN2" username="abc@a.2" password="secret" comment="BT ADSL" graph="BT ADSL 2" log="true"/>

</syntaxhighlight>

and change the port from:

<port name="LAN3" ports="3"/>

</syntaxhighlight>

to

<port name="WAN2" ports="3"/>

</syntaxhighlight>

 

e.g.:

<ppp port="WAN1" username="abc@a.1" password="secret" comment="BT ADSL" graph="BT ADSL" log="true" speed="1000000"/>

<ppp port="WAN2" username="abc@a.2" password="secret" comment="BT ADSL" graph="BT ADSL 2" log="true" speed="1000000"/>

Since each PPP connection will give the FireBrick a default route, the FireBrick will use both, and upload traffic on each ppp connection up to the speed given. The speed is in bits, so this example is where the upload is 1M.

If the upload is different on the lines, then that's fine - e.g., you may have a line using Annex-A and one Annex-M. Setting the speed correctly will mean the correct amount of traffic will be sent up each line.