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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

FireBrick 3G Dongle: Difference between revisions

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=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.
==Example Config==
 
This assumes the 3G dongle has an MTU of 1500. When MTU is 1492, RA-MTU is 1472.
Here we have an example config, with default logging. Please make changes to suit your FireBrick setup.
 
 
If your MTU is 1500 use this:
 
<syntaxhighlight>
<interface name="LAN" port="LAN" ra-client="false">
<subnet ip="1.2.3.4/24 2001:8b0::1/64" ra="true" ra-mtu="1480" ra-dns="2001:8b0::2020 2001:8b0::2021"/>
</interface>
 
<interface name="WAN" port="WAN" ra-client="false"/>
 
<ppp name="AAISP" port="WAN" username="me@a.1" password="secret" lcp-rate="1" lcp-timeout="5" graph="AAISP" log="default"/>
 
<usb>
<dongle name="AAISP-BACKUP" apn="m2m.aql.net" username="me@a.3" password="secret" nat="false" graph="AAISP-BACKUP" log="default"/>
</usb>
 
<route ip="::/0" gateway="81.187.81.6" comment="IPv6 default route using IPv4 tunnel"/>
</syntaxhighlight>
 
 
If your MTU is 1492 use this instead:
 
<syntaxhighlight>
<interface name="LAN" port="LAN" ra-client="false">
<subnet ip="1.2.3.4/24 2001:8b0::1/64" ra="true" ra-mtu="1472" ra-dns="2001:8b0::2020 2001:8b0::2021"/>
</interface>
 
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