Anyone experience this behavior or know why?

[ratch3t]

pfSense unit has been contacting a list of IP addresses (nothing is behind the firewall yet) this is a new install of pfSense.

It has been contacting repetitively these addresses on port 53,  is this normal behavior - and what is the reason?

192.31.80.30
192.48.79.30
192.55.83.30
192.5.6.30
192.42.93.30
192.33.14.30
192.35.51.30
192.12.94.30
192.52.178.30
192.26.92.30
192.54.112.30
192.43.172.30
192.41.162.30
50.31.129.129
207.34.7.1
69.65.40.108
204.16.254.6
204.16.255.55
207.34.6.1
204.16.254.44

[jahonix]

Port 53 is DNS.
It probably tries to look for updates.

[marvosa]

Those are root name servers for the gtld (Generic top-level domain) .net -> https://www.iana.org/domains/root/db/net.html