IPv6 teredo blackout June 8th

Gert Doering gert at space.net
Thu Feb 3 10:29:59 CET 2011


On Wed, Feb 02, 2011 at 09:15:18PM +0100, Daniel Roesen wrote:
> 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? 

Cisco 6to4 runs in hardware on 6500/7600 boxes.  Dunno about GSR or CRS.

For windows clients, shouldn't the same as for Teredo apply here, though?
That is, native IPv4 being preferred before 6to4 tunneled IPv6, if the 
content is dual-stacked...

Gert Doering
        -- NetMaster
did you enable IPv6 on something today...?

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