28-8
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-12
Chapter 28      Configuring Network Security with ACLs
    Configuring ACLs
ACL Numbers
The number you use to denote your ACL shows the type of access list that you are creating. Table 28-2 
lists the access list number and corresponding type and shows whether or not they are supported by the 
switch. The switch supports IP standard and IP extended access lists, numbers 1 to 199 and 1300 to 2699.
Note In addition to numbered standard and extended ACLs, you can also create named standard and extended 
IP ACLs by using the supported numbers. That is, the name of a standard IP ACL can be 1 to 99; the 
name of an extended IP ACL can be 100 to 199. The advantage of using named ACLs instead of 
numbered lists is that you can delete individual entries from a named list.
Creating a Numbered Standard ACL
Note For information about creating ACLs to apply to a management interface, see the “Configuring IP 
Services” section of the Cisco IOS IP and IP Routing Configuration Guide, Cisco IOS Release 12.1 and 
the Cisco IOS IP and IP Routing Command Reference, Cisco IOS Release 12.1. You can these apply 
these ACLs only to a management interface.
Table 28-2 Access List Numbers
ACL Number Type Supported
1–99 IP standard access list Yes
100–199 IP extended access list Yes
200–299 Protocol type-code access list No
300–399 DECnet access list No
400–499 XNS standard access list No
500–599 XNS extended access list No
600–699 AppleTalk access list No
700–799 48-bit MAC address access list No
800–899 IPX standard access list No
900–999 IPX extended access list No
1000–1099 IPX SAP access list No
1100–1199 Extended 48-bit MAC address access list No
1200–1299 IPX summary address access list No
1300–1999 IP standard access list (expanded range) Yes
2000–2699 IP extended access list (expanded range) Yes