North(config)# access-list 107 deny ip 14.2.0.0 0.0.255.255 any log
North(config)# access-list 107 deny ip 14.1.0.0 0.0.255.255 any log
North(config)# ! block special/reserved addresses
North(config)# access-list 107 deny ip 127.0.0.0 0.255.255.255 any log
North(config)# access-list 107 deny ip 0.0.0.0 0.255.255.255 any log
North(config)# access-list 107 deny ip 10.0.0.0 0.255.255.255 any log
North(config)# access-list 107 deny ip 169.254.0.0 0.0.255.255 any log
North(config)# access-list 107 deny ip 172.16.0.0 0.15.255.255 any log
North(config)# access-list 107 deny ip 192.168.0.0 0.0.255.255 any log
North(config)# ! block multicast (if not used)
North(config)# access-list 107 deny ip 224.0.0.0 15.255.255.255 any
North(config)# ! block some ICMP message types
North(config)# access-list 107 deny icmp any any redirect log
North(config)# access-list 107 deny icmp any any echo log
North(config)# access-list 107 deny icmp any any mask-request log
North(config)# access-list 107 permit ip any 14.2.0.0 0.0.255.255
North(config)# access-list 107 permit ip any 14.1.0.0 0.0.255.255