ipset:
ipset: IP sets are a Linux kernel framework administered by the ipset 
ipset: utility. Depending on the type, currently an IP set may store IP 
ipset: addresses, (TCP/UDP) port numbers, or IP addresses with MAC addresses 
ipset: in a way which ensures lightning speed when matching an entry against 
ipset: a set. 
ipset:
ipset: Homepage: http://ipset.netfilter.org/
ipset:
ipset: