[solved] Strange Error after deleting GIF HE.net IPv6 tunnel latest RC

[strangegopher]

Hi,

I often see following log entries that I didn't see before removing HE.net tunnel in latest RC build.
78.46.223.24 is nordvpn dns server i entered in system -> general setup
The errors were similar to 78.46.223.24 but with quad9 ipv6 dns servers earlier but then I removed ipv6 dns servers from system -> general setup and then I started seeing following errors.

Mar 25 22:47:34	php-fpm	326	/system.php: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
... editing dns under System -> General Setup
Mar 25 22:46:28	php-fpm	52075	/services_unbound.php: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
... changed unbound settings
Mar 25 22:40:42	php-fpm	326	/rc.newwanip: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
... openvpn interface up
Mar 25 22:40:34	php-fpm	325	/rc.newwanip: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
Mar 25 22:40:34	php-fpm	325	/rc.newwanip: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
Mar 25 22:40:34	php-fpm	325	/rc.newwanip: The command '/sbin/route delete -host 78.46.223.24' returned exit code '1', the output was 'route: route has not been found delete host 78.46.223.24 fib 0: not in table'
... wan interface up
Mar 25 22:40:33	php-cgi		rc.bootup: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
Mar 25 22:40:33	php-cgi		rc.bootup: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
Mar 25 22:40:33	php-cgi		rc.bootup: The command '/sbin/route delete -host 78.46.223.24' returned exit code '1', the output was 'route: route has not been found delete host 78.46.223.24 fib 0: not in table'

[strangegopher]

I created a ticket: https://redmine.pfsense.org/issues/8390

I partially fixed the issue by adding dns 2620:fe::fe and then deleting it.

Now I only see one error message at bootup (and no error at openvpn up/changing unbound settings/changing dns):

Mar 25 23:24:40	php-fpm	326	/rc.newwanip: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
Mar 25 23:24:40	php-fpm	326	/rc.newwanip: The command '/sbin/route delete -host 78.46.223.24' returned exit code '1', the output was 'route: route has not been found delete host 78.46.223.24 fib 0: not in table'
... wan up
Mar 25 23:24:39	php-cgi		rc.bootup: The command '/sbin/route delete -host ' returned exit code '64', the output was 'route: destination parameter required route: usage: route [-46dnqtv] command [[modifiers] args]'
Mar 25 23:24:39	php-cgi		rc.bootup: The command '/sbin/route delete -host 78.46.223.24' returned exit code '1', the output was 'route: route has not been found delete host 78.46.223.24 fib 0: not in table'

[strangegopher]

Just did fresh install and restored config, still see errors.

[strangegopher]

my config.xml file had <dns5gw>NORDVPN_DHCP</dns5gw>
despite having no DNS entries in System/Advanced

changed it to <dns5gw>none</dns5gw> and problem solved!

I would like to thank the source code for helping me narrow down the problem.