[RFC PATCH 06/14] config: implement RFC4861 AdvValidLifetime (make configurable)

[Christian Marangi]

On Fri, May 10, 2024 at 12:30:38AM +0200, Paul Donald wrote:
> From: Paul Donald <newtwen at gmail.com>
> 
> In accordance with RFC4861. Enables control of ULA.
> 
> The new config variable is valid_lifetime. e.g.:
> 
> config dhcp 'lan'
>         ...
>         option valid_lifetime '6h'
> 

Move this to separate series as it's unrelated and can be merged
separately.

-- 
	Ansuel