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Re: [Ipsec] Issue 91 - ICMP error message handling



Hi Mark,

>Karen has since re-posted her ICMP proposal of April 13, so I 
>suppose it is that one that should be on the table, rather than the 
>older one from Oct 26 2003.

	Yes.  Thank you.

>Neither of those proposals covers the path MTU discovery.  So I 
>think PMTUD needs to be carried forward from 2401 (modified or not) 
>in any event.  Whether to act on Karen's proposal should be a 
>separate issue.  (Your item #3 seems to me to suggest that Karen's 
>proposal is an *alternative* to the PMTUD text.)

	I've been meaning to do an updated write up for handling
	PMTU discovery.   I will try to get something out by next
	week.

Karen

>
>>In the original 2401 there was text describing the handling of path MTU
>>but the handling of other unprotected ICMP messages was left as a local
>>matter.  On October 26, Karen posted the message included below that
>>proposes a more complex algorithm for handling ICMP messages.  There has
>>been little discussion to date on this so Ted and I would like to
>>propose the following:
>>
>>1. Default position: if no one is interested in discussing this issue,
>>we fall back to the text as it existed in 2401 which covers path MTU but
>>is silent on other types of unprotected ICMP messages.
>>
>>2. If you believe there are deficiencies or ambiguities in the original
>>text on path MTU in 2401 please speak up!
>>
>>3. If you feel we should take a different approach, such as that
>>proposed by Karen, then start voicing your opinions.
>>
>>We plan to give the working group 1 week to begin discussion on this
>>topic. If there is no discussion within 1 week, we will go with the
>>default position.  Otherwise, if discussion commences, we're willing to
>>invest a couple of weeks to reach a consensus direction on this issue.
>
>
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