A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Deterministic Address Mapping to Reduce Logging in
Carrier Grade NAT Deployments
Author(s) : Chris Donley
Chris Grundemann
Vikas Sarawat
Karthik Sundaresan
Olivier Vautrin
Filename : draft-donley-behave-deterministic-cgn-06.txt
Pages : 14
Date : 2013-07-13
Abstract:
In some instances, Service Providers have a legal logging requirement
to be able to map a subscriber's inside address with the address used
on the public Internet (e.g. for abuse response). Unfortunately,
many Carrier Grade NAT logging solutions require active logging of
dynamic translations. Carrier Grade NAT port assignments are often
per-connection, but could optionally use port ranges. Research
indicates that per-connection logging is not scalable in many
residential broadband services. This document suggests a way to
manage Carrier Grade NAT translations in such a way as to
significantly reduce the amount of logging required while providing
traceability for abuse response. While the authors acknowledge that
IPv6 is a preferred solution, Carrier Grade NAT is a reality in many
networks, and is needed in situations where either customer equipment
or Internet content only supports IPv4; this approach should in no
way slow the deployment of IPv6.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-donley-behave-deterministic-cgn
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-donley-behave-deterministic-cgn-06
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-donley-behave-deterministic-cgn-06
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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