Having trouble getting my Sophos UTM Home (9.700-5) to support IPv6 over my BT-supplied FTTP service. Everything works fine with the SmartHub 2, but the UTM will not get an IPv6 address from the BRAS. the UTM will show me a prefix, but it will not assign an address to its WAN interface, so i have no route back to the BRAS. I think this is an issue with the UTM, but I need to compare with someone else before I take the drastic step that is rebuilding the UTM.
Does anyone have a Sophos UTM Home, working over IPv6? if so, does your external interface look like this?
I am expecting (I think) to see an IPv6 address alongside the 86.x.x.x address on the WAN interface.
the Sophos community is silent on this, and that's not like them at all. Way back in the past, DHCPv6-PD was definitely not supported, but nobody is making this information available to me.