I-D ACTION:draft-ietf-dna-cpl-02.txt
Internet-Drafts@ietf.org Fri, 20 January 2006 20:50 UTC
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Subject: I-D ACTION:draft-ietf-dna-cpl-02.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Detecting Network Attachment Working Group of the IETF. Title : DNA with unmodified routers: Prefix list based approach Author(s) : E. Nordmark, J. Choi Filename : draft-ietf-dna-cpl-02.txt Pages : 32 Date : 2006-1-20 Upon establishing a new link-layer connection, a host determines whether a link change has occurred, that is, whether or not it has moved at layer 3 and therefore needs new IP configuration. This draft presents a way to robustly check for link change without assuming any changes to the routers. We choose to uniquely identify each link by the set of prefixes assigned to it. We propose that, at each attached link, the host generates the Complete Prefix List, that is, a prefix list containing all the valid prefixes on the link, and when it receives a hint that indicates a possible link change, it detects the identity of the currently attached link by consulting the existing prefix list. This memo describes how to generate the Complete Prefix List and to robustly detect the link identity even in the presence of packet loss. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-dna-cpl-02.txt To remove yourself from the I-D Announcement list, send a message to i-d-announce-request@ietf.org with the word unsubscribe in the body of the message. You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce to change your subscription settings. Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-dna-cpl-02.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-dna-cpl-02.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. 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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