Sequence numbering in ACLs
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":
You can add an ACE to the end of a named or numbered ACL by using either
access-list
for numbered ACLs or
ip access-list
for named ACLs:
For example, to append a fourth ACE to the end of the ACL:
NOTE:
When using the
access-list {<1 - 99 | 100 - 199>} {<permit | deny>}
<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.