[Int-area] Fwd: New Version Notification for draft-welzl-icmp-text-middleboxes-00.txt

2015-06-29 Thread Michael Welzl
Dear all,

We just posted the draft below. Not knowing which other group would fit, we're 
sending it here. We're really transport people and at least I am newbie to this 
group...  very curious to hear your thoughts:
- completely idiotic?
- exactly what the world has been waiting for?

... I guess it can only be one of the two above  :-) If the chairs think 
that this makes sense to discuss in Prague, we'll be there, and I'd be happy to 
do a supershort presentation, but let us first hear what you think. It's a 
short and easy read, we promise that!  :-)

Thanks!
Michael  Janjie


 Begin forwarded message:
 
 Resent-From: mich...@ifi.uio.no
 From: internet-dra...@ietf.org
 To: Jianjie You youjian...@huawei.com, Michael Welzl mich...@ifi.uio.no, 
 Jianjie You youjian...@huawei.com, Michael Welzl mich...@ifi.uio.no
 Subject: New Version Notification for draft-welzl-icmp-text-middleboxes-00.txt
 Date: 30. juni 2015 kl. 00.24.23 CEST
 
 
 A new version of I-D, draft-welzl-icmp-text-middleboxes-00.txt
 has been successfully submitted by Michael Welzl and posted to the
 IETF repository.
 
 Name: draft-welzl-icmp-text-middleboxes
 Revision: 00
 Title:Text messaging to middlebox administrators using ICMP
 Document date:2015-06-30
 Group:Individual Submission
 Pages:6
 URL:
 https://www.ietf.org/internet-drafts/draft-welzl-icmp-text-middleboxes-00.txt
 Status: 
 https://datatracker.ietf.org/doc/draft-welzl-icmp-text-middleboxes/
 Htmlized:   
 https://tools.ietf.org/html/draft-welzl-icmp-text-middleboxes-00
 
 
 Abstract:
   This document describes the use of an ICMP message to send text
   messages to on-path middleboxes from the endpoints.  The text message
   is sent towards a destination but meant to be read by administrators
   of middleboxes along the path to the destination.  The goal is to
   improve the user's experience with simple middlebox cooperation.
 
 
 
 
 
 Please note that it may take a couple of minutes from the time of submission
 until the htmlized version and diff are available at tools.ietf.org.
 
 The IETF Secretariat
 

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Re: [Int-area] Fwd: New Version Notification for draft-welzl-icmp-text-middleboxes-00.txt

2015-06-29 Thread joel jaeggli
ignoring for a second the question of information leakage which is
apparently intentional in this case; an icmp message is unlikley to hash
onto the same path that the offending/failed flow would have been on in
many networks. While I can think perhaps more illustrative examples of
uses for a free form txt field (DMARC for example). the notion that
freeform txt messages with no source authetication should end up in a
ticketing system in an actionable fashion seems extrodinarily unlikely.


On 6/29/15 3:35 PM, Michael Welzl wrote:
 Dear all,
 
 We just posted the draft below. Not knowing which other group would fit, 
 we're sending it here. We're really transport people and at least I am newbie 
 to this group...  very curious to hear your thoughts:
 - completely idiotic?
 - exactly what the world has been waiting for?
 
 ... I guess it can only be one of the two above  :-) If the chairs think 
 that this makes sense to discuss in Prague, we'll be there, and I'd be happy 
 to do a supershort presentation, but let us first hear what you think. It's a 
 short and easy read, we promise that!  :-)
 
 Thanks!
 Michael  Janjie
 
 
 Begin forwarded message:

 Resent-From: mich...@ifi.uio.no
 From: internet-dra...@ietf.org
 To: Jianjie You youjian...@huawei.com, Michael Welzl mich...@ifi.uio.no, 
 Jianjie You youjian...@huawei.com, Michael Welzl mich...@ifi.uio.no
 Subject: New Version Notification for 
 draft-welzl-icmp-text-middleboxes-00.txt
 Date: 30. juni 2015 kl. 00.24.23 CEST


 A new version of I-D, draft-welzl-icmp-text-middleboxes-00.txt
 has been successfully submitted by Michael Welzl and posted to the
 IETF repository.

 Name:draft-welzl-icmp-text-middleboxes
 Revision:00
 Title:   Text messaging to middlebox administrators using ICMP
 Document date:   2015-06-30
 Group:   Individual Submission
 Pages:   6
 URL:
 https://www.ietf.org/internet-drafts/draft-welzl-icmp-text-middleboxes-00.txt
 Status: 
 https://datatracker.ietf.org/doc/draft-welzl-icmp-text-middleboxes/
 Htmlized:   
 https://tools.ietf.org/html/draft-welzl-icmp-text-middleboxes-00


 Abstract:
   This document describes the use of an ICMP message to send text
   messages to on-path middleboxes from the endpoints.  The text message
   is sent towards a destination but meant to be read by administrators
   of middleboxes along the path to the destination.  The goal is to
   improve the user's experience with simple middlebox cooperation.





 Please note that it may take a couple of minutes from the time of submission
 until the htmlized version and diff are available at tools.ietf.org.

 The IETF Secretariat

 
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Re: [Int-area] Fwd: New Version Notification for draft-welzl-icmp-text-middleboxes-00.txt

2015-06-29 Thread Joe Touch
+1

On 6/29/2015 4:06 PM, joel jaeggli wrote:
 ignoring for a second the question of information leakage which is
 apparently intentional in this case; an icmp message is unlikley to hash
 onto the same path that the offending/failed flow would have been on in
 many networks.

When you say middlebox you're opening up the set that includes NATs,
and that means any message that isn't to the same address/port pair
isn't likely traverse the same path.

So *at best* this might be able to contact the first middlebox it
encounters, but how useful would that be with that limitation?

(I'm also ignoring the fact that most middleboxes don't want to admit
they exist, so this might be only providing another way for them to
ignore you)

Joe

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Re: [Int-area] Fwd: New Version Notification for draft-welzl-icmp-text-middleboxes-00.txt

2015-06-29 Thread Suresh Krishnan
Hi Michael,

On 06/29/2015 06:35 PM, Michael Welzl wrote:
 Dear all,

 We just posted the draft below. Not knowing which other group would fit, 
 we're sending it here. We're really transport people and at least I am newbie 
 to this group...  very curious to hear your thoughts:
 - completely idiotic?
 - exactly what the world has been waiting for?

 ... I guess it can only be one of the two above  :-) If the chairs think 
 that this makes sense to discuss in Prague, we'll be there, and I'd be happy 
 to do a supershort presentation, but let us first hear what you think. It's a 
 short and easy read, we promise that!  :-)

Since you are requesting an ICMPv6 codepoint, I think 6man would be a 
better venue for this work if it progresses.

As for the draft itself, I have a few thoughts.

* It is unclear how the plaintext message ripples up to the 
administrator. Some clarity about this would be very useful.

* What about DoS attacks? There is no rate-limiting?

* Need to specify type128 for IANA

* A +1 for Joel's and Joe's comments

Thanks
Suresh


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