The ACEs in any ACL are sequentially
numbered. In the default state, the sequence number of the first ACE
in a list is "10" and subsequent ACEs are numbered in increments
of 10. For example, the following show run output
lists three ACEs with default numbering in a list named "My-List":
The default sequential numbering for ACEs
You can add an ACE to the end of a named or numbered
ACL by using either access-listfor numbered ACLs
or ip access-list for named ACLs:
The default sequential numbering for ACEsAdding an ACE to the end of numbered or named ACLsAppending an ACE to an existing list
For example, to append a fourth ACE to the end
of the ACL:
<SA> command to create an ACE for a numbered
ACL, the ACE is always added to the end of the current list and given
the appropriate sequence number. However, once a numbered list has
been created, you can use the ip access-list command
to open it as a named ACL and specify a nondefault sequence number,
as described in the next section.
