Standard Access Control Lists (ACLs) are the oldest type of Access Control Lists (ACL). Standard IP access lists are used to permit/deny traffic only based on source IP address of the IP datagram packets.
Standard Access Control Lists (ACLs) can be created by using the "access-lists" IOS command. The syntax of "access-list" IOS command to create a Standard Access Control List is shown below.
access-list [Access_list_number] [permit | deny] [IP_address] [wildcard mask (optional)]