filter4.conf

function is_valid_network() {
  return net ~ [
    172.20.0.0/14{21,29}, # dn42 main net
    172.20.0.0/24{28,32}, # dn42 Anycast range
    172.21.0.0/24{28,32}, # dn42 Anycast range
    172.22.0.0/24{28,32}, # dn42 Anycast range
    172.23.0.0/24{28,32}, # dn42 Anycast range
    172.24.0.0/16{21,29}, # ORG-ETH2 Hacker spaces.
    192.175.48.0/24{24,32}, # AS112-prefix for reverse-dns	
    10.0.0.0/8{12,28}, # freifunk/chaosvpn
    172.31.0.0/16{22,28}, # chaosvpn
    100.64.0.0/10{12,28}, # iana private range
    195.160.168.0/23{23,28}, # ctdo
    91.204.4.0/22{22,28}, # free.de via ctdo
    193.43.220.0/23{23,28}, # durchdieluft via ctdo
    83.133.178.0/23{23,28}, # muccc kapsel
    87.106.29.254/32{32,32}, # wintix (please don' announce /32)
    46.4.248.192/27{27,32}, # welterde
    94.45.224.0/19{19,28}, # ccc event network
    151.217.0.0/16{16,28}, # ccc event network 2
    195.191.196.0/23{23,29}, # ichdasich pi space
    80.244.241.224/27{27,32}, # jchome service network
    188.40.34.241/32{32,32},
    37.1.89.192/26{26,28}, # siska
    87.98.246.19/32{32,32}
  ];
}