Hi Carlos,

As I already said, RFC2784 punts on IPv6; hence, there was no reason for it to
cite RFC2473.

Thanks – Fred
[email protected]

From: Carlos Pignataro (cpignata) [mailto:[email protected]]
Sent: Tuesday, March 31, 2015 11:30 AM
To: Templin, Fred L
Cc: Ronald P. Bonica; [email protected]; [email protected]; 
[email protected]; Zuniga, Juan Carlos; 
[email protected]
Subject: Re: [Int-area] Start of WGLC for draft-ietf-intarea-gre-ipv6

Fred,

On Mar 31, 2015, at 12:54 PM, Templin, Fred L 
<[email protected]<mailto:[email protected]>> wrote:

Hi Ron,

RFC2784 punts on IPv6. From Section 9:


 o IPv6 as Delivery and/or Payload Protocol

   This specification describes the intersection of GRE currently
   deployed by multiple vendors. IPv6 as delivery and/or payload
   protocol is not included in the currently deployed versions of GRE.

RFC2784 should have cited RFC2473 as the normative reference for
generic encapsulation in IPv6 but didn't. But, that does not mean
that your document should make the same omission.

There is no current reference/citation relationship between RFC2784 and 
RFC2473. There is also no relevant errata filed 
http://www.rfc-editor.org/errata_search.php?rfc=2784 in the 15 years since 
publishing. There is no document updating either of those RFCs making your 
“should have” actual.

Ron’s explanation below was clear on why this is so — and why this document 
does not link to RFC 2473.

Thanks,

— Carlos.


Thanks - Fred
[email protected]<mailto:[email protected]>


-----Original Message-----
From: Ronald Bonica [mailto:[email protected]]
Sent: Tuesday, March 31, 2015 9:26 AM
To: [email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>; Templin, Fred L
Cc: Zuniga, Juan Carlos; 
[email protected]<mailto:[email protected]>;
 [email protected]<mailto:[email protected]>
Subject: Re: [Int-area] Start of WGLC for draft-ietf-intarea-gre-ipv6

Fred,

RFC 2784 doesn't update RFC 2473. This is because RFC 2784 doesn't levy any new 
requirements upon RFC 2473 implementations.
Implementations that were RFC 2473 compliant the day before RFC 2784 was 
published remained compliant the day after RFC 2784
was published.

Likewise, the current draft doesn't update RFC 2473. This is because the 
current draft doesn't levy any new requirements upon RFC
2473 implementations. Implementations that are RFC 2473 compliant today will 
remain compliant the day after the current draft is
published.

                                                      Ron




On an even higher level note, RFC2473 already specifies generic
encapsulation within IPv6 which implicitly includes GRE. So, if this document
goes through it needs to say that it updates RFC2473.

Thanks ? Fred
[email protected]<mailto:[email protected]>

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