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Table 5-2
IP address/Wildcard bit examples
Initial IP address
10.1.1.0
10.1.1.0
10.1.1.0
Order of Entries
The order of the entries in the list is important. The entries in the list are tested sequentially, and the action is determined
by the first entry that matches the connecting IP address. Therefore, when the entry "any" appears in an Access Control
List, all succeeding entries are irrelevant.
Consider two hypothetical ACLs containing the same entries in a different order.
The following list would permit access to all IP addresses, including 10.1.1.0:
permit any
deny 10.1.1.0
Note that the above list could not actually be created using the setup utility, since after the "any" entry, no other entries
could be added to the list.
The following list will deny access to IP address 10.1.1.0, but permit access to all others:
deny 10.1.1.0
permit any
If no entry in the assigned Access Control List matches the connection, or if the Access Control List is empty, the default
action is deny.
To create the access control lists, complete the following steps:
Step 1
Enter the Access Control Lists configuration menu.
Would you like to enter the Access lists configuration menu? [no]: y
Type y and press Enter.
The Access Control Lists configuration dialog begins.
You have the option of creating or modifying Access Control Lists, or skipping this section and proceeding
Step 2
directly to assign the existing ACLs to the desired management interfaces.
Would you like to create new Access lists or modify existing lists? [no]: y
If you choose not to create or edit Access Control Lists, skip to
(on page 31).
Type the number of the Access Control List to be configured (1 through 99) and press Enter.
Step 3
Note that there is no default for this parameter.
Step 4
Begin adding entries to the selected list.
Indicate whether this entry is permitted access or denied access.
26
Wildcard bits
0.0.0.255
0.0.0.63
0.0.0.0
Range
10.1.1.0–10.1.1.255
10.1.1.0–10.1.1.63
10.1.1.0 (individual entry)
Step 9: Configuring the Topology-Dependent Parameters
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