Re: Last Call: <draft-ietf-6man-oversized-header-chain-08.txt> (Implicat

Fred,

> Hi, I would like to make a small amendment to what I said in my
> previous message as follows:
>
> 4) Section 5, change the final paragraph to:
>
>   "As a result of the above mentioned requirements, a packet's header
>   chain length MUST fit within the Path MTU associated with its
>   destination.  Hosts MAY discover the Path MTU, using procedures such
>   as those defined in [RFC1981] and [RFC4821]. However, if a host does
>   not discover the Path MTU, it MUST assume the IPv6 minumum MTU of
>   1280 bytes [RFC2460]. The host MUST then limit each packet's header
>   chain length to the Path MTU minus 256 bytes in case additional
>   encapsulation headers are inserted by tunnels on the path."
I would claim that additional encapsulation headers are already considered in 
the 1280 minimum MTU.
as in: 1500 - 1280.

cheers,
Ole

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