Hi Ron,

RFC2784 has this statement: See [RFC1122] for requirements relating to the
   delivery of packets over IPv4 networks.
Does this apply to over IPv6 networks?

Since IPv6 header does not have checksum, if a packet is mis-delivered to GRE 
decapsulator, will that cause a concern? This is not a concern when IPv4 
network is the delivery network. 

Thanks,
Lucy


-----Original Message-----
From: Ronald Bonica [mailto:[email protected]] 
Sent: Thursday, March 05, 2015 11:57 AM
To: [email protected]; Lucy yong
Subject: RE: [Int-area] comment on draft-ietf-intarea-gre-ipv6

Hi Lucy,

The goal of this draft is *not* to prove the GRE behaves identically with IPv6 
as it does with IPv4. In fact, its goal is to point out the differences.

Can you think of any differences between the two GRE environments that we have 
failed to point out?

                                                                                
                       Ron


> 
> Message: 1
> Date: Wed, 4 Mar 2015 15:25:54 +0000
> From: Lucy yong <[email protected]>
> To: "[email protected]" <[email protected]>
> Subject: [Int-area] comment on draft-ietf-intarea-gre-ipv6
> Message-ID: <2691CE0099834E4A9C5044EEC662BB9D4545BB21@dfweml701-
> chm>
> Content-Type: text/plain; charset="us-ascii"
> 
> Hi,
> 
> If this draft is to document the protocol of gre in IPv6 exact same as 
> of gre in
> IPv4 and update rfc2784, IMHO, it should point out the gre application 
> behavior differences in IPv4 network and IPv6 network. The exact same 
> protocol does not mean the same behavior for an application since IPv4 
> and
> IPv6 networks have different behaviors such as header checksum.
> 
> Thanks,
> Lucy
> 
> 
> 
> 

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