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Re: [v6ops] Q about IPv4-mapped IPv6 address & MPLS

Simon Perreault <simon@per.reau.lt> Thu, 01 May 2014 21:10 UTC

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Date: Thu, 01 May 2014 17:10:23 -0400
From: Simon Perreault <simon@per.reau.lt>
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Subject: Re: [v6ops] Q about IPv4-mapped IPv6 address & MPLS
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Le 2014-05-01 02:08, Rajiv Asati (rajiva) a écrit :
> The answer to Q#1 will help MPLS WG to decide the proper handling of
> v4-mapped v6 addresses in LDPv6 draft section 7 1st para.
> http://tools.ietf.org/html/draft-ietf-mpls-ldp-ipv6-12#section-7 *

Rajiv,

In addition to what the others have said, to provide very precise
guidance, I think this text in your draft...

   An LSR MUST NOT allocate and MUST NOT advertise FEC-Label bindings
   for link-local IPv6 address, and ignore such bindings, if ever
   received. An LSR MUST treat the IPv4-mapped IPv6 address, defined in
   section 2.5.5.2 of [RFC4291], the same as that of a global IPv6
   address and not mix it with the 'corresponding' IPv4 address.

...should be changed to:

   An LSR MUST NOT allocate and MUST NOT advertise FEC-Label bindings
   for link-local or IPv4-mapped IPv6 address, and ignore such
   bindings, if ever received.

Simon

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