> Some read it (many):
> 
>  "if I configure a site here, I must also block site-locals 
> from spreading 
> out or false site-locals coming in"
> 
> Some others read it:
> 
>  "if I use site-locals here, my upstream router will block 
> the site-local 
> addresses from spreading out and prevent anyone from spoofing 
> site-locals 
> to my site"
> 
> The latter is how I read it must be implemented -- and 
> reading Microsoft's implementation and the reason they're 
> using SL *strongly* suggests they 
> also have read it that way.  There are very probably many others.

No, I think you're the only person reading it the latter way.

My expectation is that routers will need to be configured to understand
site boundaries. A conservative position is that routers by default
should regard their interfaces as belonging to different sites, unless
they are configured to be in the same site. Or perhaps other aspects of
the router's configuration (eg the network prefixes assigned to
different interfaces, or the routing protocols in use) could be used to
default the site configuration.

Rich

--------------------------------------------------------------------
IETF IPng Working Group Mailing List
IPng Home Page:                      http://playground.sun.com/ipng
FTP archive:                      ftp://playground.sun.com/pub/ipng
Direct all administrative requests to [EMAIL PROTECTED]
--------------------------------------------------------------------

Reply via email to