NewIPTablesHandler creates new instance of iptables handler.

IPTablesHandler is a handler for all operations on Linux iptables / ip6tables.

IPTablesAPI interface covers all methods inside linux calls package needed to manage linux iptables rules.

IPTablesAPIRead interface covers read methods inside linux calls package needed to manage linux iptables rules.

IPTablesAPIWrite interface covers write methods inside linux calls package needed to manage linux iptables rules.

L3Protocol to differentiate between IPv4 and IPv6.