Re: last-hop routers, raising the MTU

[[e-mail] (Noel Chiappa)]

	Apparently I phrased that suggestion unclearly. Only *one* address
would be in the option; the next hop. At each router, the 'next hop' address
would be checked to see if it was that router. If not, some router in the
middle did not understand (and correctly update) the option.
	I'm not saying this is a great idea; it's just a way of telling (in
that particular scheme) if some box in the middle isn't with it. Remember,
incremental deployment is one thing we have to worry about. One thing I
think we *don't* want MTU discovery to do is cause *every* packet to be
fragmented because some intermediate router has a small MTU but didn't say
so. On the other hand, maybe we do want to punish people who don't do MTU
discovery fairly quickly! :-)

	Noel