Hi, carl
Use "access-list" to configure a standard or an extended ACL. ACL configured this way can only identified by a number, and the number you can use is limited (1~99 ,100~199 for example)
Use "ip access-list" to configured a named ACL which could be either a standard or extended ACL. ACLs configured this way can have a name to identify them. The number of name you can use is unlimited.
HTH
SSLIN