automatic BGP filter generator using IRR routing data

 bgpq4 eases BGP filter maintenance by automatically generating prefix
 lists, (extended) access lists, policy statement terms and AS-path
 lists using IRR routing data. It features IPv6 prefix-/access-list
 support, aggregation of generated filters and output compatible with
 Cisco, Juniper, Mikrotik, Nokia, OpenBGPD and BIRD.
 .
 It is a fork of bgpq3. By default, it uses IRR server from NTT.