Messages in this thread |  | | Date | Wed, 1 Apr 2026 10:07:11 +0200 | | Subject | Re: [PATCH 0/6] Deprecate Legacy IP | | From | Fernando Fernandez Mancera <> |
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On 4/1/26 9:44 AM, David Woodhouse wrote: > RFC1883, the IPv6 standard, was published in the final decade of the 1900s. > That's closer in time to the Apollo 11 moon landing than it was to today. > > Even our esteemed Maddog has worked with computers for longer in the IPv6 > era, than he ever did before it. > > Yet Linux still can't even be *built* with only IPv6 support and without > support for Legacy IP. This long overdue patch series fixes that, and > immediately marks Legacy IP for deprecation. > > It also cleans up a few tautological "INET && IPV6" and "INET || IPV6" > checks, since IPV6 (and now LEGACY_IP) cannot be selected without the > overall CONFIG_INET option. > > For now, we only add a warning when a process *listens* on a Legacy IP > socket (since you can listen on IPv6 and still accept connections which > have come through a timewarp from the 20th century. Adding warnings for > making outbound connections or *accepting* on Legacy IP can come later. > > 'I would be happy if "Legacy IP" ceased to be the "industry standard" > and IPv6 be the default, even if I had to beat IPv6 into the head of > every single network administrator's head with a shovel.' said Jon > 'maddog' Hall, ancient supporter of Free and Open Source Software. >
Dammit, you've beaten me to it! This was my next step for 7.2.
Fully-endorsed-by: Fernando Fernandez Mancera <fmancera@suse.de>
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