Hello everybody,
I am a little confused about some things that we are gonna implement for our customers.
We have many UTMs running by customers in our datacenter based on virtual appliance and for each customer a functioning IPSEC VPN Tunnel over IPV4.
So far so good, now we are looking forward to find a possibility to offer a backup internet connection for our customers and we've received static IPV6 on both sides, in our
datacenter and to the customer via Telekom LTE. The fun is about to begin now, I am not sure if the Sophos UTM is providing such a protocol like dual stack for the WAN interface, if not
maybe we can add a secondary WAN interface and provisiong it with IPV6 but the real question is how is supposed to work the tunnel balancing ? First of all I thought it may be possible to add the IPV6 address to the existing IPV4 tunnel as a secondary gateway in the availability group but this is not gonna work I assume because of different IP protocols, then I thought I may have to had 2 tunnels, one tunnel over IPV4 and the second one over IPV6 and then eventually the second one with 1:1 NAT rule because of the same subnet so they can stay both online all time and by the time one is failing the second one should work as normally, but none of these possibilities seems to be working because for each of them remains an unsolved issue and I'm getting stucked over and over again.
Can someone tell me if it's technically possibile to achive something like this and how ? Have someone of you tried something like this before and has it eventually in the production already ?
Thank you in advance,
Arnold Hienz.
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