Creating Standard And Extended Access Lists Using Names - Cisco MWR 1941-DC - 1941 Mobile Wireless Router Software Configuration Manual

Filtering IP Packets Using Access Lists
When creating an access list, remember that, by default, the end of the access list contains an implicit
Note
deny statement for everything if it did not find a match before reaching the end.
In a standard access list, if you omit the mask from an associated IP host address access list
Note
specification, 0.0.0.0 is assumed to be the mask.
Autonomous switching is not used when you have extended access lists.
Note
After creating an access list, you must apply it to a line or interface, as shown in the
Lists" section on page
for examples of implicit masks.

Creating Standard and Extended Access Lists Using Names

You can identify IP access lists with an alphanumeric string (a name) rather than a number. Named
access lists allow you to configure more IP access lists in a router than if you were to use numbered
access lists. If you identify your access list with a name rather than a number, the mode and command
syntax are slightly different. Currently, only packet and route filters can use a named list.
Consider the following guidelines before configuring named access lists:
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Named access lists will not be recognized by any software release prior to Cisco IOS Release 11.2.
Note
Cisco MWR 1941-DC Mobile Wireless Edge Router Software Configuration Guide
6-50
6-58. See the
Access lists specified by name are not compatible with Cisco IOS Releases prior to 11.2.
Not all access lists that accept a number will accept a name. Access lists for packet filters and route
filters on interfaces can use a name.
A standard access list and an extended access list cannot have the same name.
Numbered access lists are also available, as described in the
Access Lists Using Numbers" section on page
Chapter 6
"Implicit Masks in Access Lists Examples" section on page 6-61
6-46.
Configuring the MWR 1941-DC in a Cell Site DCN
"Applying Access
"Creating Standard and Extended
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