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TCP_EnableIPv6=1 is it time to make this the default?

Currently, to use IPv6 in the environment, its necessary to add TCP_EnableIPv6=1 to notes.ini. Is there any danger in turning this on by default?

While it's certainly not ubiquitous, IPv6 is hardly an edge case any more in 2021 and I think the capability should be offered without having to add a new entry to notes.ini. Without IPv6 in the environment (I just tested by turning IPv6 off on my network adapter) the code falls back to IPv4, anyway.

How about adding IPv6 support in by default and allowing it to be disabled with TCP_EnableIPv6=0 should someone find a need to?


Ben Erickson

Trusted Computer Consulting, LLC

  • Guest
  • Feb 16 2021
  • Unlikely to implement
  • Attach files
  • Guest commented
    6 Jun 01:05pm

    both should be setup when installing / upgrading.

  • Guest commented
    6 Jun 12:33pm

    How many customers did you ran into using IPv6?

    I see really rare customer cases here in Germany. I know only about one out of all my customers using Domino with IPv6 and even the requirement for IPv6.


    I don't see the default should be changed. It will cause more issues for customers not actively using it than it helps the view to use it have it easier.


    It's really interesting to see that some many years after we have been told there are almost no IPv4 addresses left, the corporate world is still not moving fast towards IPv6.


    [ Daniel Nashed / https://blog.nashcom.de ]

  • Guest commented
    19 Feb 10:08am

    I think if we also could set the order to "IPV4, IPV6" it can be a good idea. Otherwise port-binds could bind to IPV6 and not IPV4