Fail over to ADSL/FTTC/3G etc in the even of an Ethernet Fault

Fallback Options

One of the concerns people always have with any service like this is what happens if it breaks. We explain the underlying reliability of the service, but there are extra options we offer.

Fallback Options

Failover options

Customers with our Ethernet internet access service can purchase a DSL, FTTP or L2TP service as a failever to the main Ethernet connection. These can have the same IP addresses routed to them in the event of a failure with the Ethernet circuit. You may also choose to have multiple failover options - eg using a Starlink service for example.

How failover works:

Your Ethernet service has an interlink IPv4 and IPv6 block which is used for the connection. additional IP blocks are then routed to your IP in this interlink block. We will constantly ARP for your address and if it stops responding we will re-route the IP block to give your other service(s) priority - eg DSL, FTTP or L2TP tunnel. This allows fall-back to DSL within a few seconds.

When your router starts answering ARPs again (presumably the router, or fibre being fixed) routing will return to Ethernet.

Packets are accepted on up-link on broadband from your IPs at all times in this case, and our usual monitoring and text/email alerts apply to the broadband line so you know it is ready when you need it.

We'd suggest a FireBrick FB2900 to manage the fail over of the uplink - from your side to the internet.


A Fibre To The Cabinet service is available in lots of areas, and this can provide a very fast backup to your Ethernet service, in the same way as an ADSL line. FTTP can also be used.


We have an L2TP IP service, allowing failover using tunnels via any alternative internet access for the same IPs. Learn more...


We can offer our own 4G data services or can advise how to set up an L2TP tunnel to connect in to A&A's network over a third-party 4G/5G service. Learn more...

FireBrick FB2900

Our own FireBrick routers are what we'd suggest as the router to manage the failover at your side. These can be bought or rented. Contact us for more information.


We have a mini case-study showing how a particular customer is using our Ethernet service which has their IPv4 and IPv6 blocks failing over to L2TP and then bonded ADSL.

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phone 03333 400222
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sms 01344 400222

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phone 03333 400999
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Sat 10am-2pm)
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