Am 23.06.2024 um 19:50 schrieb Thomas Bohl:
The router doesn't have a valid NDP entry. It has a NDP entry for an
address ifconfig says is deprecated. If I force the use of this
deprecated address with "ping -I" the response are received.
I have to verify if it always stops if pltime reaches zero.
It doesn't always stop immediately if pltime reaches zero and a new
temporary address is generated. Only sometimes. But in the long run it
eventually will fail and never recover.
It has to be a NDP problem. I'm not sure who is at fault. My guess would
be the router, because its traces will start outputting a
xx:xx:xx:xx:xx:xx mac address (that is not me anonymizing it):
(fd00:172:17:174:d468:28ab:498e:5d0e is the new autoconf temporary
address on the OpenBSD host.)
[ND-CACHE] 2024/06/24 23:06:17,088 Devicetime: 2024/06/24
23:06:17,077[info] : ND state on interface HOST_O4 changed
fe80::91:51ff:fe40:c93f iface HOST_O4 lladdr 02:91:51:40:c9:3f
(BUNDLE-1,3) host DELAY src fe80::2a0:57ff:fe3a:ac77
[ND-CACHE] 2024/06/24 23:06:17,127 Devicetime: 2024/06/24
23:06:17,105[info] : outgoing packet on HOST_O4
target: fd00:172:17:174:d468:28ab:498e:5d0e, source:
fe80::2a0:57ff:fe3a:ac77
fd00:172:17:174:d468:28ab:498e:5d0e iface HOST_O4 lladdr
xx:xx:xx:xx:xx:xx host INIT src fe80::2a0:57ff:fe3a:ac77
[ND-CACHE] 2024/06/24 23:06:17,127 Devicetime: 2024/06/24
23:06:17,105[info] : ND state on interface HOST_O4 changed
fd00:172:17:174:d468:28ab:498e:5d0e iface HOST_O4 lladdr
xx:xx:xx:xx:xx:xx host INCOMPLETE src fe80::2a0:57ff:fe3a:ac77
[ND-CACHE] 2024/06/24 23:06:20,109 Devicetime: 2024/06/24
23:06:20,105[info] : ND state on interface HOST_O4 changed
fd00:172:17:174:d468:28ab:498e:5d0e iface HOST_O4 lladdr
xx:xx:xx:xx:xx:xx host UNREACHABLE src fe80::2a0:57ff:fe3a:ac77
I just don't get why Linux and Windows don't have the same problem. I
try to collect more tcpdump and log-data.
