@gertjan said in Block Everything, except NTP:
@gregoinc said in Block Everything, except NTP:
The block from the internet works, but I cannot get the allow NTP to work?
You could block all 'Internet' access, NTP included.
Fire up the NTP server on pfSense.
Check if it works.
Add a firewall rule that permits traffic from any device to pfSense (destination Firewall itself), protocol UDP, destination part 123.
Tell the DHCP server that it should give NTP IP when it deals out a lease :
[image: 1646664733269-5ef30045-500d-4953-9745-19cbbdb92878-image.png]
Where 192.168.1.1 is the IP LAN of pfSense.
Now your LAN devices will use (should use) pfSEnse as a time source.
Hello Gertjan,
I tried your suggestion and it works like a charm. Appreciate all the feedback on this topic, was great to see all the information sharing.
Thanks, Mark