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RFC 7768
Title: Port Management to Reduce Logging
in Large-Scale NATs
Author: T. Tsou, W. Li,
T. Taylor, J. Huang
Status: Informational
Stream: Independent
Date: January 2016
Mailbox: tina.tsou@philips.com,
mweiboli@gmail.com,
tom.taylor.stds@gmail.com,
james.huang@huawei.com
Pages: 11
Characters: 23442
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-tsou-behave-natx4-log-reduction-06.txt
URL: https://www.rfc-editor.org/info/rfc7768
DOI: http://dx.doi.org/10.17487/RFC7768
Various IPv6 transition strategies require the introduction of large-
scale NATs (e.g., AFTR and NAT64) to share the limited supply of IPv4
addresses available in the network until transition is complete.
There has recently been debate over how to manage the sharing of
ports between different subscribers sharing the same IPv4 address.
One factor in the discussion is the operational requirement to log
the assignment of transport addresses to subscribers. It has been
argued that dynamic assignment of individual ports between
subscribers requires the generation of an excessive volume of logs.
This document suggests a way to achieve dynamic port sharing while
keeping log volumes low.
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