Carlos E. R. wrote:
On 2023-05-08 23:28, Per Jessen wrote:
Carlos E. R. wrote:
I have started Ethereal, and run it for a minute or two, till I noticed the file /run/wicked/leaseinfo.eth0.auto.ipv6 changing.
There are no dhcpv6 packets.
Then I did a filter on IPv6 packets. There aren't many. Most are ICMP. I'll mail that direct to you if you want to have a look.
Here goes.
Did you read it yourself? I don't really read Ethereal, but even then I can still see an RA being sent every minute.
Problem identified.
Yes, I did read it myself.
I grep for the word "RA" and don't find it. You are assuming I know how to read ethereal output.
As you were using the tool, yes, I did think you had some familiarity with it. (I don't use it).
No Time source dest proto length Info 19 21:23:30.009606005 fe80::ceed:dcff:fe05:80d4 ff02::1 ICMPv6 206 Router Advertisement from cc:ed:dc:05:80:d4 20 21:23:30.112980336 fe80::5a5f:fa3f:829f:ced2 ff02::16 ICMPv6 190 Multicast Listener Report Message v2
I assume that "destination ff02::1" is the router.
ff02::1 is a multicast address meaning "All Nodes". Fyi, ff00::/8 are all multicast addresses. The Ethereal output even explains it in plain text "Router Advertisement from cc:ed:dc:05:80:d4". I think I remember cc:ed:dc:05:80:d4 being your router. (cc:ed:dc = Mitrastar). So, it is your router informing everyone on the network about the router address. iow, a Router Advertisement.
I can not read what that packet capture means.
Nor can I :-) I see your router sending very frequent RAs. I have no idea what those "Multicast Listener Report" are for, but ff02::16 is for "all MLDv2 capable routers".
Ok, can I tell the ISP / Beta people anything? This moment I don't know what to tell them. Or why bother.
Given how responsive they are, it might not be worth it, but you could ask why your router is sending an RA every 10seconds. Normally, an RA is sent in response to a router solicitation (ff02::2) or at regular intervals. The default for radvd is every 200seconds, for instance. However - I don't think an RA should cause your /etc/resolv.conf to be updated, unless the DNS also changes. -- Per Jessen, Zürich (15.7°C) Member, openSUSE Heroes (2016 - present) We're hiring - https://en.opensuse.org/openSUSE:Heroes