Yamaha(config)#access-list 123 permit 192.168.1.0 0.0.0.255 (1)
Yamaha(config)#access-list 123 deny any
Yamaha(config)#access-list 123 description IPV4-ACL-EX (2)
Yamaha(config)#end
Yamaha#
Yamaha#show ip access-list (3)
IPv4 access list 123
10 permit 192.168.1.0/24
20 deny any
Yamaha#