Dan Ritter <d...@randomstring.org> writes: > Tunnelbroker.net can use a dynamic update feature so that the > static IPv6 address is only momentarily interrupted when the > underlying v4 address is changed out. This is quite reliable if > you hook it to the the DHCP client's post-up function.
I don't understand the relevance. Does tunnelbroker.net offer some other kind of tunnels than 6to4 which, AFAICT, don't work without a public IPv4 address? Which the OP does not have due to his IPv4-in-IPv6 connection. Same goes for 6in4 tunnels. I can't seem to find out what Hurricane Electric offers without sigining up though but at least https://forums.he.net/index.php?topic=4195.0 from last year seems to indicate WireGuard tunnels are not supported. If "public IPv4 address" is not understood by you it can also be formulated as "the OP has an RFC1918 IPv4 address which is not routable on the public internet and hence a 6to4 tunnel can't work for him."