Nagios NRPE package isn't IPv6 capable
In pfSense 2.4.4p3 Nagios NRPE package lacks IPv6 capabilities.
1. binding IP: I can only give one IP. For Dual Stack I need to be able to give more than one IP
2. binding IP: I can only give IPv4 addresses, IPv6 address not accepted
3. nagios Servers: IPv6 addresses not accepted