DUNDi behind NAT / with IPv6

Asterisk Asterisk Support
1

After solving the keys issue I’m hitting the next one.

Now DUNDi Lookups work, the peer is getting a reply like:

IAX2/dundi:[secret]@[IPv6]/number (EXISTS|NOUNSLCTD|NOCOMUNSLTD)

Well, what if the receiving peer does not speak ipv6? What if the DUNDi server is behind NAT and replies with an internal address? How can I configure the Host of the URI returned by DUNDi?

2

I sort of solved this by using mapping and different context so that the lookup return multiple results, I had to hard-code the public ipv4 address in the mapping.