A while back the pool used to support connecting and mining via
cjdns. cjdns is described as:
Cjdns implements an encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing. This provides near-zero-configuration networking, and prevents many of the security and scalability issues that plague existing networks.
I've re-enabled this for testing purposes as another backup in case mmpool.org is attacked or down. It should provide better performance than the tor hidden service option but it isn't intended for anonymity.
So this is basically just another way of tunneling IPv6 traffic over IPv4? Will you be adding native IPv6 for those of us that already have it?