A、ip access-list standard cisco deny 172.16.192.0 0.0.31.255
B、ip access-list standard cisco deny 172.16.0.0 0.0.255.255
C、ip access-list standard cisco deny 172.16.172.0 0.0.31.255
D、ip access-list standard cisco deny 172.16.188.0 0.0.15.255
E、ip access-list standard cisco deny 172.16.192.0 0.0.15.255