pfSense

At boot when setting up IPsec and some event after, there is a netlink debug message that gets logged multiple times:

[nl_iface] dump_sa: unsupported family: 0, skipping

It happens during IPsec configuration:

Configuring IPsec VPN... [nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping
[nl_iface] dump_sa: unsupported family: 0, skipping

And it appears on the console at various points after that but it's not clear what triggers it after boot, might be when certain tunnels connect. It doesn't happen when polling the status, but it does happen if I force a restart of strongSwan.

The nl_iface debug level is at 7:

net.netlink.debug.nl_iface_debug_level: 7