This is not a special problem for the 44.190 space. It affects every direct connected 44 announcement for those users that cannot use IPIP tunneling because they don't have a plain IPv4-connection. In Europe it is very common to give normal customers a so called "DS-Lite Connection" or a plain IPv6-connection. Everything that must be reached in the IPv4-world from those custumers sites mostly goes through this ugly "carrier-grade-nat (CGN)" which in most cases doesn't work very well for our special needs.

IMHO the preferred solution for this is to setup regional routing points where IPIP (and preferably BGP announcement) is possible, and where those users that have limited internet connections can connect via a VPN technology that still works for them. This way, their HAMNET traffic can be forwarded untranslated.

It is the method that we use, and various others do it as well. As was shown before on this thread, VM/VPS services that can be used for this are widely available. And those do not suffer from having CGNAT or dynamic addresses. At least not yet.

Rob