Hi Marshall,
I had a quick glance over the draft and I am not convinced that it
will handle a certain class of errors.
Consider that the UDP header of the encapsulating IPv6 packet gets
corrupted and the destination port gets changed to say 2280 from the AMT
port (2268). This error will never be detected by the receiver and the
receiver will not be able to decapsulate the multicast packet and send
it on its way. If the UDP checksum was properly calculated, this error
would have been detected.
Cheers
Suresh
On 25/02/09 02:35 PM, Marshall Eubanks wrote:
I haven't seen any discussion of this on this list - there has been some
on MBONED.
So far, we have as users for this flexibility
AMT (the original need)
LISP and
(According to Dave Thaler) maybe UDP-ESP (RFC 3948) across a NAT64.
If people here have comments on these uses, or know of other uses,
please comment
on this list. Of course, any and all other comments, suggestions, or
brickbats will be welcomed.
Regards
Marshall
P.S. Please note that this draft was largely written by Philip Chimento.
I don't know how the XML process
lead to me being the only author - this will be fixed in the next round.
Begin forwarded message:
From: Brian Haberman <br...@innovationslab.net>
Date: February 24, 2009 8:21:19 AM EST
To: mbo...@ietf.org
Subject: [MBONED] [Fwd: I-D Action:draft-eubanks-chimento-6man-00.txt]
All,
Here is the draft that proposes to loosen the UDP checksum rule
for IPv6. I would appreciated if discussions of this draft occur on
the 6MAN mailing list (ipv6@ietf.org).
Regards,
Brian
-------- Original Message --------
Subject: I-D Action:draft-eubanks-chimento-6man-00.txt
Date: Mon, 23 Feb 2009 10:45:01 -0800 (PST)
From: internet-dra...@ietf.org
Reply-To: internet-dra...@ietf.org
To: i-d-annou...@ietf.org
A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : UDP Checksums for Tunneled Packets
Author(s) : M. Eubanks
Filename : draft-eubanks-chimento-6man-00.txt
Pages : 7
Date : 2009-02-23
We address the problem of computing the UDP checksum on tunneling
IPv6 packets when using lightweight tunneling protocols.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-eubanks-chimento-6man-00.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
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