[rfc-dist] RFC 7768 on Port Management to Reduce Logging in Large-Scale NATs

rfc-editor at rfc-editor.org rfc-editor at rfc-editor.org
Fri Jan 29 14:34:52 PST 2016


A new Request for Comments is now available in online RFC libraries.

        
        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 at philips.com, 
                    mweiboli at gmail.com, 
                    tom.taylor.stds at gmail.com,
                    james.huang at 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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