Hi nztim and antonknee
You guessed right, I'm trying to restrict incoming traffic for a server to NZ only traffic - a UTM firewall sounds great for when the exisiting comes up for replacement, good tip! I've become aware that some Ubiquiti devices can do this also, will need to use the list for other firewalls in the meantime.
Out of interest OP, what are you trying to achieve? @djmoz
Probably create filter allow rules based on certain RSP / NZ IP addresses
As mentioned the best way to do this is to invest in a UTM firewall which does have a yearly subscription but allows you to write firewall rules based on Countries / ASNs that are dynamically updated without manual intervention
Sonicwall//fortinet/sophos are three common brands of UTM firewall that do this