Re: administrivia (on avoiding injury)

[Margaret Wasserman <mrw@windriver.com>]

>
>How do you accomplish getting an unmodifyed station to change the source
>address it uses?  

IPv6 doesn't have statically defined addresses like IPv4 does.
Hosts receive their address prefixes on a temporary basis through 
IPv6 Host Autoconfiguration or a stateful configuration mechanism
(DHCP).  All IPv6 stacks support autoconfiguration.

So, it would be possible (although I am still working to determine
whether it would be practical) to change the IPv6 routers to deprecate
prefixes for which connectivity has been lost.  IPv6 hosts will
choose (for any new connection) a non-deprecated address over a
deprecated one.  

It is fairly easy to understand how new IPv6 routers could get
current IPv6 hosts to start using a new address to establish new
connections.

The hard part is figuring out how the new IPv6 router knows that
the host should start using a new address at all.  In other words,
how do routers within the site determine that Internet connectivity
through a particular ISP has been lost?

Margaret