[Cerowrt-users] 6in4 links

[Phil Pennock]

On 2012-12-09 at 21:04 -0500, Michael Richardson wrote:
> The problem is that the interface that is created is a /128, and it's
> the ::2, but since it is a /128, the ::1 isn't "On-network", so the
> static route fails.

Er, a /128 means there can be no route associated with it, this is used
typically for things like additional aliases on an interface.  To use
this for sending traffic, you'd need a concept of "pump to far side"
which exists for things like a tunnel, but not for stf0, which is able
to talk to arbitrary end-points.

For stf0, perhaps you want a /16 ?

You might want a /127 per RFC 6164 (and RFC 6547 explicitly
recategorised the /127s-harmful RFC as historic).  Note that a ::1 and a
::2 would still be on different networks for a /127.  You perhaps want
::2 and ::3 (or a /126 but then consider the ping-pong issues).

-Phil