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Happy 30th birthday to RFC 1631 ("NAT"), the "short term solution" we all rely on (datatracker.ietf.org)

submitted 6 months ago by [email protected] to c/[email protected]

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From the conclusion:

NAT may be a good short term solution to the address depletion and scaling problems. This is because it requires very few changes and can be installed incrementally. NAT has several negative characteristics that make it inappropriate as a long term solution, and may make it inappropriate even as a short term solution. Only implementation and experimentation will determine its appropriateness.

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[–] [email protected] 121 points 6 months ago* (last edited 6 months ago) (13 children)

there is no fix more permanent than a temporary one.

edit: as I literally sit here inspecting the nat tables on a couple of edge routers.

[–] [email protected] 18 points 6 months ago (11 children)

That temporary fix will eventually become unnecessary. IPv6 has slowly getting more and more use.

[–] [email protected] 24 points 6 months ago (5 children)

It's been getting "more and more use" since 2001. To start with the isps said that they were not going to do any work to implement it until endpoints supported it. Then vista came with support by default. Next they wanted the backbones to support it. All tier 1 networks are now dual stack. Then they said they were not going to do anything until websites supported it widely. Now all cdns support it. Then they said, it's ok we will just do mass nat on everyone so won't do any work on it.

[–] raldone01 1 points 5 months ago* (last edited 4 days ago)

At least I have a nice static and proper ipv6 prefix.

However when I asked for a reverse dns entry they could only give me one for ipv4... So now my Mail server only uses ipv4. :-(

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