On Thu, 2018-11-08 at 08:05 -0500, Brian J. Murrell wrote:
> Hi. I have NM on 1.12.4 on Fedora 29 sitting behind my Internet
> gateway router which has both IPv4 and IPv6 upstream connections.
>
> Recently one of my IPv6 upstream connections changed and got a new
> prefix. My Internet gateway handled that just fine and started
> announcing the new prefix in it's RAs to the LAN.
>
> However, this NM 1.12.4 machine, upon receiving the RAs from the
> Internet gateway seems to be resurrecting an address to the previous
> prefix that was being advertised by my upstream (as well as the
> currently advertised prefix).
>
> Even if I remove the stale address using "ip addr del", on the next
> received RA, NM will resurrect that old address even though it's not
> even one of the addresses the Internet gateway is including in it's
> RA.
>
> I have not restarted NM. Probably if I do, this problem will go away
> but I wanted to hopefully take this opportunity to provide any
> desired
> debug info to help solve this issue.
>
> Is there any useful info I can gather at this point or shall I just
> restart NM?
>
> Cheers,
> b.
Hi,
1.12.4 has
https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=c7d8f17094a24aec4a1a79447cda3bc208b751a5
With this, it would be expected that the prefix continues to exist for up to
two hours.
However, the old prefix's preferred time should also be expired right away.
Did you for wait up to two hours for the prefix to disappear? Was the problem
still
present after two hours? Was the old addresse expired (preferred_lft)?
best,
Thomas
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