On 15/10/20 09:44, Harald Dunkel wrote:
On 10/14/20 10:18 AM, Stuart Henderson wrote:
On 2020-10-11, Henrik Friedrichsen <[email protected]> wrote:
Hey,
my ISP provides connectivity via PPPoE. An IPv6 prefix is handed out via
DHCPv6 PD, which my OpenBSD gateway passes on to clients with the help
of router advertisements using rad.
This works fine until the ISP disconnects me after 24h (force disconnect
on ISP side). The gateway receives a new prefix via prefix delegation
and rad advertises it in the local network. So far so good. However, as
The IPv6 protocol does not have the necessary features to reliably cope
with this setup. (Neither does IPv4 for that matter).
I am affected by the same problem, even though my provider (Deutsche
Telekom)
resets the IPv6 prefix only once in a while.
Wasn't there some RFC saying that the ISP has to (or should?) route both
prefixes til the old prefix expires and that the forcible disconnect is
allowed only for hardware failures or something similar? Resetting the
prefix every 24h doesn't sound like that.
Renumbering may happen for one reason or another
(https://tools.ietf.org/html/draft-ietf-v6ops-slaac-renum). Me, I think
robustness of the network shouldn't depend on prefixes being stable.
More specifically, hosts should be able to do better. That's the goal of
https://tools.ietf.org/html/draft-gont-6man-slaac-renum-08
Thanks,
--
Fernando Gont
e-mail: [email protected] || [email protected]
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1
