Re: Proposed update to ULA Draft (-09)

[Bob Hinden]

Pekka,
At 07:40 AM 01/18/2005, Pekka Savola wrote:
On Fri, 14 Jan 2005, Brian Haberman wrote:
We wanted the working group to review the proposed changes before a new 
version was submitted.
I see no big problem with the changes, but the bullet point one of the
Thanks.  Good to hear!
changes refers to was this:
   The default behavior of exterior routing protocol sessions between
   administrative routing regions must be to ignore receipt of and not
   advertise prefixes in the FC00::/7 block.  A network operator may
   specifically configure prefixes longer than FC00::/7 for inter-site
   communication.
   If BGP is being used at the site border with an ISP, the default BGP
   configuration must filter out any Local IPv6 address prefixes, both
   incoming and outgoing.
This was discussed (without a resolution) in November:
http://www1.ietf.org/mail-archive/web/ipv6/current/msg03898.html
This 'default behaviour must be to ignore' seems rather inpractical to 
implement from vendor's perspective (unless you create a special knob 
'allow-ula' applicable to eBGP).  Therefore I'm doubtful whether it gets 
implemented..
I think this was responded to:
   http://www1.ietf.org/mail-archive/web/ipv6/current/msg03901.html
This is mean as operational guidelines.  We are not precluding a vendor 
from implementing such a "knob", but do not require it.  This is based on 
discussion with the routing ADs as part of their review of the document.

Regards,
Bob
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