IPv6 teredo blackout June 8th

Daniel Roesen dr at cluenet.de
Wed Feb 2 21:15:18 CET 2011

Hi Phil,

On Wed, Feb 02, 2011 at 11:05:55AM +0100, Phil wrote:
> I want to open up a discussion on the potential failure of the teredo relays
> around the world on IPv6 day and anything we can do to mitigate it.

See comments from other regarding Teredo. This is probably a non-issue
at large. I'd rather worry about 6to4...

I wonder what current scalable 6to4 relay implementations are out there,
short of DIY Linux/BSD boxes. Cisco has 6to4 since aeons - but what
about scaling on "hardware" forwarding platforms? Juniper unfortunately
still doesn't implement 6to4 relay encaps on any router platform.
Sparing a 10GE port on MX for tunnel service 6to4 here and there would
certainly be the low hanging fruit for many folks here - no joy though,
too late I guess.

No debate on the big suckage factor of global anycast 6to4 - but we all
should carefully consider deploying 6to4 relays to unsuck 6to4 as far as
possible. Question is: what do we have in the toolbox currently? Also
we should think of a BCP how to deploy such relays (I never operated a
globally advertised anycast 6to4 relay myself, so cannot comment or
guesstimate how many things we can do wrong when trying to do so).

Best regards,

CLUE-RIPE -- Jabber: dr at cluenet.de -- dr at IRCnet -- PGP: 0xA85C8AA0

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