Hi all,
after upgrade from 25.7.11_2 to 26.1r1 everything looked good at first. I did not yet try the rule migration but intended to wait for RC2 with all the fixes in that specific area.
Half an hour later Internet was down. SSH to the box still working, system quite sluggish, dashboard widgets failing to load.
A couple of hundred processes like this:
/usr/local/bin/php /usr/local/etc/rc.newwanipv6 pppoe0 force
"killall -9 php" made the system responsive again for a short while but the processes kept piling up.
Anything specific in the log I should look for?
With 25.7 running, this is the dhcp6d.conf:
interface pppoe0 {
send ia-na 2; # request stateful address
send ia-pd 2; # request prefix delegation
request domain-name-servers;
request domain-name;
script "/var/etc/dhcp6c_wan_script.sh"; # we'd like some nameservers please
};
id-assoc na 2 { };
id-assoc pd 2 {
prefix ::/56 infinity;
};
I'm a bit puzzled by that "request domain-name-servers;" - is that hard coded? I could not find a way to disable it, anywhere and I certainly do not want any DNS servers, be it v4 or v6 from my ISP.
I isolated the logs for a single PID when the system was running 26.1r1:
root@opnsense:/var/log/system # grep 56100 *
latest.log:<29>1 2026-01-25T14:53:57+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="701"] Sending Solicit
latest.log:<27>1 2026-01-25T14:53:57+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="702"] transmit failed: Can't assign requested address
latest.log:<29>1 2026-01-25T14:53:58+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="705"] Sending Solicit
latest.log:<29>1 2026-01-25T14:53:59+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="721"] Sending Request
latest.log:<29>1 2026-01-25T14:53:59+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="722"] Received REPLY for REQUEST
latest.log:<29>1 2026-01-25T14:53:59+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="723"] failed to remove an address on pppoe0: Can't assign requested address
latest.log:<29>1 2026-01-25T14:53:59+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="724"] failed to update an address ::
latest.log:<29>1 2026-01-25T14:54:00+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="732"] Sending Solicit
latest.log:<29>1 2026-01-25T14:54:01+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="733"] Sending Request
latest.log:<29>1 2026-01-25T14:54:01+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="734"] Received REPLY for REQUEST
latest.log:<29>1 2026-01-25T14:54:01+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="735"] failed to remove an address on pppoe0: Can't assign requested address
latest.log:<29>1 2026-01-25T14:54:01+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="736"] failed to update an address ::
latest.log:<29>1 2026-01-25T14:54:02+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="741"] Sending Solicit
latest.log:<29>1 2026-01-25T14:54:03+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="744"] Sending Request
latest.log:<29>1 2026-01-25T14:54:06+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="746"] Received REPLY for REQUEST
latest.log:<29>1 2026-01-25T14:54:06+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="747"] failed to remove an address on pppoe0: Can't assign requested address
latest.log:<29>1 2026-01-25T14:54:06+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="748"] failed to update an address ::
latest.log:<29>1 2026-01-25T14:54:07+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="757"] Sending Solicit
latest.log:<29>1 2026-01-25T14:54:08+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="759"] Sending Request
latest.log:<29>1 2026-01-25T14:54:08+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="760"] Received REPLY for REQUEST
latest.log:<29>1 2026-01-25T14:54:08+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="761"] failed to remove an address on pppoe0: Can't assign requested address
latest.log:<29>1 2026-01-25T14:54:08+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="762"] failed to update an address ::
[...]
system_20260125.log:<29>1 2026-01-25T16:12:17+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="20634"] Sending Solicit
system_20260125.log:<29>1 2026-01-25T16:12:18+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="20640"] Sending Request
system_20260125.log:<29>1 2026-01-25T16:12:18+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="20641"] Received REPLY for REQUEST
system_20260125.log:<29>1 2026-01-25T16:12:18+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="20642"] failed to remove an address on pppoe0: Can't assign requested address
system_20260125.log:<29>1 2026-01-25T16:12:18+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="20643"] failed to update an address ::
system_20260125.log:<29>1 2026-01-25T16:12:19+01:00 opnsense.ettlingen.hausen.com dhcp6c 56100 - [meta sequenceId="20646"] Sending Solicit
root@opnsense:/var/log/system #
Kind regards,
Patrick
Quote from: Patrick M. Hausen on January 25, 2026, 05:55:15 PMHalf an hour later Internet was down. SSH to the box still working, system quite sluggish, dashboard widgets failing to load.
A couple of hundred processes like this:
/usr/local/bin/php /usr/local/etc/rc.newwanipv6 pppoe0 force
"killall -9 php" made the system responsive again for a short while but the processes kept piling up.
Sounds similar to : https://forum.opnsense.org/index.php?msg=257256 ??
I don't use Suricata or Zenarmor.