Since we have said repeatedly we waat this to work, it should be stated. If it is already stated, I apologize but I can not find it. The section you quoted from the ToC doesn't.

Yours,
Joel

On 6/22/2011 6:32 PM, Alia Atlas wrote:
f) Sec 5: There is no indication in the packet formats that IPv4 in
>>  IPv6 or IPv6 in IPv4 SHOULD be supported.  I don't care about long
>>  format sections - but at a minimum, there should be a paragraph that
>>  specifies the encapsulation possibilities:
>>
>>    "A LISP packet consists of an outer header, a UDP header, and an
>>    inner header.  The following combinations MUST be supported:
>>      i) IPv4 outer header and IPv4 inner header (in Sec. 5.1)
>>      ii) IPv6 outer header and IPv4 inner header
>>      iii) IPv6 outer header and IPv6 inner header (in Sec 5.2)
>>      iv) IPv4 outer header and IPv6 inner header "
>
>  I don't understand this comment. The summary is in the table of contents
>  section names:
>
>     5.  LISP Encapsulation Details . . . . . . . . . . . . . . . . . . 16
>       5.1.  LISP IPv4-in-IPv4 Header Format  . . . . . . . . . . . . . 17
>       5.2.  LISP IPv6-in-IPv6 Header Format  . . . . . . . . . . . . . 17
>       5.3.  Tunnel Header Field Descriptions . . . . . . . . . . . . . 19
Right - there is no description of DIFFERENT IP VERSIONS - e.g. IPv6 in IPv4
or IPv4 in IPv6

NOWHERE in the draft is this specifically said to be allowed or expected,
but list conversations certainly imply it.

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