RE: Posted a new copy of CPE Rtr draft

["Templin, Fred L" <Fred.L.Templin@boeing.com>]

Hemant,

> -----Original Message-----
> From: Hemant Singh (shemant) [mailto:shemant@cisco.com]
> Sent: Tuesday, August 18, 2009 2:28 PM
> To: Templin, Fred L; Iljitsch van Beijnum; Wes Beebee (wbeebee)
> Cc: v6ops@ops.ietf.org
> Subject: RE: Posted a new copy of CPE Rtr draft
> 
> Fred,
> 
> Thanks for the clarification.  Our next revision will take care of
this
> error in the document if ISATAP is agreed upon by the group to be
> included for use in the home.

OK, but to be complete the assertion is that ISATAP can
be used:

1) In the customer network when the CPE acts as an ISATAP
   router on the customer side, and
2) In the provider network when the CPE acts as an ISATAP
   host on the provider side.

Also missing from the spec is a discussion of VET when
the CPE acts as either a VET host or a VET enterprise
border router on the provider side, and there is a VET
enterprise border gateway in the provider network. It
may/may not be useful to characterize VET as "ISATAP
version 2 (isatapv2)".

Fred
fred.l.templin@boeing.com

> 
> Hemant
> 
> -----Original Message-----
> From: Templin, Fred L [mailto:Fred.L.Templin@boeing.com]
> Sent: Tuesday, August 18, 2009 5:21 PM
> To: Hemant Singh (shemant); Iljitsch van Beijnum; Wes Beebee (wbeebee)
> Cc: v6ops@ops.ietf.org
> Subject: RE: Posted a new copy of CPE Rtr draft
> 
> Hemant,
> 
> > >"CPE Router MAY initiate ISATAP"
> >
> > >How would that work??
> >
> > The CPE Rtr must always try 6rd first and if that fails then the rtr
> > should try 6to4 and once that fails, then I think it makes sense the
> > device can try ISATAP.  Either one has the ISATAP PRL manually
> > provisioned on the rtr or ISATAP queries for the PRL with DNS.  I am
> > personally not sold on ISATAP at all, but Fred Templin asked for
> ISATAP
> > to be included in the CPE Rtr.  If others in the community do not
want
> > ISATAP in the CPE Rtr, then we can remove it.
> 
> I asked for ISATAP to show up in the CPE Rtr document, but
> I asked for it to show up inside the customer site; not on
> the provider side. ISATAP is for host<->router or host<->host;
> it is not for router<->router. So, the time ISATAP would be
> used in the provider network is when the CPE device is a host
> and not a router.
> 
> On the customer side, the CPE router can serve as the ISATAP
> router and can be discovered by dual-stack hosts within the
> customer network. But, that arrangement would not be visible
> within the provider network.
> 
> Fred
> fred.l.templin@boeing.com