% BASIC PREFIX LIST
ip prefix-list anynet seq 5 deny 0.0.0.0/0 ! Block default
ip prefix-list anynet seq 10 deny 0.0.0.0/8 le 32
ip prefix-list anynet seq 15 deny 10.0.0.0/8 le 32
ip prefix-list anynet seq 20 deny 127.0.0.0/8 le 32
ip prefix-list anynet seq 25 deny 169.254.0.0/16 le 32
ip prefix-list anynet seq 30 deny 172.16.0.0/12 le 32
ip prefix-list anynet seq 35 deny 192.0.2.0/24 le 32
ip prefix-list anynet seq 40 deny 192.168.0.0/16 le 32
ip prefix-list anynet seq 45 deny 221.10.0.0/19 le 32 ! Block local prefix
ip prefix-list anynet seq 50 deny 224.0.0.0/3 le 32 ! Block multicast
ip prefix-list anynet seq 55 deny 0.0.0.0/0 ge 25 ! Block prefixes >/24
ip prefix-list anynet seq 999 permit 0.0.0.0/0 le 32