Re: Debian Trixie install SLAAC

There is no DHCPv6 server setup at all in this network, so no options or add=
resses should or can be fetched using DHCPv6.


> On 23 May 2026, at 21:05, Marco Moock <[email protected]> wrote:
>=20
> =EF=BB=BFAm 23.05.26 um 20:12 schrieb Pascal Hambourg:
>>> On 23/05/2026 at 18:31, Thomas Marcks von W=C3=BCrtemberg wrote:
>>>=20
>>> Well i have not tested the DHCPv6 install, just a pure SLAAC. And if i h=
ad a misconfiguration in the router to say look for DHCPv6 when there is non=
e to be found, that's on me and not the installer.
>>>=20
>>> A more user friendly way is to just go with the SLAAC if the DHCPv6 fail=
s, but i can see the current state as strict, but valid.
>> I have to admit it was never clear to me what the "managed" flag exactly m=
eans. Does it mean that any other information from the RA should be ignored ?=

>=20
> No. The O (other) flag means that a device should use DHCPv6 to gather oth=
er info via DHCPv6 (not a non-temporary address, so DNS, NTP, hostname etc.)=
. The M-flag means it should gather an address via DHCP and other info (if M=
 is set, O is don't care).
>=20
> It does not change the behavior of the RA itself, so if a prefix is announ=
ced with the A flag, the client should generate an address using it, if RDNS=
S option is used in the RA, it should use it, all together with DHCPv6 info i=
f the M/O flags are set.
>=20
> --
> Gru=C3=9F
> Marco
> Muell und Spam bitte an [email protected]
> <OpenPGP_0x559E1A331A46B463.asc>