Need ipv6 bootstrap address

[rykcod]

It's possible to create an offical ipv6 node? Because for ipv6 only user node, its impossible to bootstrap without add a community ipv6 node in the custom config.toml

[damip]

We need to figure this out.

[AurelienFT]

First step here is to test if it really don't work.

[Leo-Besancon]

I did reproduce the issue. A client with IPv6 only interface can't connect to a bootstrap server using the IPv4 protocol (for example, see this link).

This means that we should:

• [x] Let our bootstrap servers expose both an IPv4 and IPv6 address
• [x] Then, we can put both addresses in the bootstrap ip list
• [x] Finally, filter the bootstrap ip list based on the available interfaces of the node