Teredo is not globally reachable,6to4 poor connectivity.

mcgree

Today I tried two IPv4 to IPv6 transition technologies and felt that they were not good.

chocolateshirt

HE TunnelBroker would be the best..

mcgree

@chocolateshirt said:
HE TunnelBroker would be the best..

I know, I'm just testing the transition techniques.

jackb

@chocolateshirt said:
HE TunnelBroker would be the best..

Can it reach cogent? I'd suspect not.

jtk

The legacy transition technologies such as 6to4 are increasingly considered obsolete, formally so in essence with the publication of IETF RFC 7526 a few years ago in fact. Despite HE's ongoing support for it, you can probably expect very spotty performance and availability of it at best over the coming years. Some networks are starting to actively drop the 6to4 prefix announcements or traffic. Eventually it will likely, finally and completely die out if and when HE decides to retire their relays.

mcgree

@jtk said:
The legacy transition technologies such as 6to4 are increasingly considered obsolete, formally so in essence with the publication of IETF RFC 7526 a few years ago in fact. Despite HE's ongoing support for it, you can probably expect very spotty performance and availability of it at best over the coming years. Some networks are starting to actively drop the 6to4 prefix announcements or traffic. Eventually it will likely, finally and completely die out if and when HE decides to retire their relays.

It's a shame these prefix blocks that went down in history, what a great resource.