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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