This tool allows to filter incoming IP list stream using another IP/subnet/range list. Available modes are exclude and intersect.

Command line parameters :

 -4                             ; ipv4 list (default)
 -6                             ; ipv6 list
 --mode                         ; intersect or exclude
 --filter                       ; filter subnet list file

Input must be ip address list read from stdin. May not include subnets and ranges but allows /32 or /128. Filter may contain ip addresses, ranges ip1-ip2 and ip/prefixlen Output goes to stdout.