Wouldn't it be a good start in using IPv6 to add the possibility to assign
an AAAA DNS record to existing ampr host names?
IMHO since IPv6 addresses are globally routable and NAT is not applicable,
there is no need for tunnels. Of course there is the issue of non-ham
traffic over radio links, but this could be a start.
73s de Marius, YO2LOJ