draft-wbeebee-ipv6-cpe-router-04 comments

[james woodyatt <jhw@apple.com>]

everyone--

I see this topic came up once before, but I have a different comment.

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Section 5 "Basic IPv6 Provisioning" says:
> The CPE Router MUST support at least one of two WAN interface  
> models, one of which will be active on the CPE Router at any given  
> time.
p1. If the CPE router only supports one of the two, then only one will  
be active at any given time.

p2. If I were running an ISP, I'd be very suspicious of this  
requirement on CPE router vendors that they MUST support "at least one  
of two" and not both WAN interface models.  Fortunately, I'm on the  
other side of that fence, so I'm very pleased to see that I can refuse  
to support the Unnumbered Model and still comply with Best Current  
Practice.

p3. I'm deeply confused about how the default route is communicated to  
the CPE router over its WAN link from the service provider in the  
Unnumbered Model.

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Section 5.4 "Process RAs"

Do these include RFC 4191 More Specific Route advertisements?  Yay!   
That will make the rogue RA problem a whole lot more fun.

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I'm still going through the draft.  Sorry for my slow progress.  Sigh.


--
james woodyatt <jhw@apple.com>
member of technical staff, communications engineering