→Config with Tunneled IPv6 Fallback
If using AAISP, then the options for IPv6 routing on the [[:Category:Control Pages|Control Pages]] allow an IPv6 block to be routed to a tunnel endpoint if the main routing (ie ADSL/FTTC) goes down. This means IPv6 can be routed to the 3G dongle if the main broadband(s) go down. The MTU will be limited though.
Here we have an example config, with default logging. Please make changes to suit your FireBrick setup
. If your MTU is 1492 then use ra-mtu="1472" instead of ra-mtu="1480".
=3G profiles - turning the dongle off outside of office hours=