dhcpcd-discuss

Hi Julian

On 27/01/2020 13:17, Julian Wollrath wrote:
> I am using Debian Sid and enabled the usage of RFC 7217 address via
> 'slaac private' which gives me a stable address but this is not a
> temporary address, i.e. ip addr gives me
>
> iface: [...]
>    inet6 IPv6::address scope global dynamic mngtmpaddr noprefixroute
>      valid_lft 300sec preferred_lft 60sec
>
> Since RFC 4941 is supported, is there also a way, to get temporary
> addresses managed by dhcpcd or do I have to enable it with setting
>
> "net.ipv6.conf.all.use_tempaddr = 2"
>
> with possibly setting also the preferred and maximum valid lifetime via
> sysctl and then that part is handled by the kernel?

Unlike the BSD's, Linux does not allow a 3rd party to manage temporary 
addresses. All dhcpcd can do is say "you can manage temporary addresses from 
this SLAAC address."

So you'll need to set net.ipv6.conf.all.use_tempaddr = 2.
You're also correct about the lifetimes of the temporary addresses.

Roy