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Date: Tue, 03 Oct 2023 23:10:24 +0000
To: Patrick Rohr <>
Subject: Re: [PATCH net-next v4] net: add sysctl to disable rfc4862 5.5.3e
 lifetime handling


This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <>:

On Mon, 25 Sep 2023 14:47:11 -0700 you wrote:
> This change adds a sysctl to opt-out of RFC4862 section 5.5.3e's valid
> lifetime derivation mechanism.
> RFC4862 section 5.5.3e prescribes that the valid lifetime in a Router
> Advertisement PIO shall be ignored if it less than 2 hours and to reset
> the lifetime of the corresponding address to 2 hours. An in-progress
> 6man draft (see draft-ietf-6man-slaac-renum-07 section 4.2) is currently
> looking to remove this mechanism. While this draft has not been moving
> particularly quickly for other reasons, there is widespread consensus on
> section 4.2 which updates RFC4862 section 5.5.3e.
> [...]

Here is the summary with links:
  - [net-next,v4] net: add sysctl to disable rfc4862 5.5.3e lifetime handling

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