?– Named ACLs use a descriptive name or number for identi?¬?cation.
ACL Identi?¬?cation
When you create numbered ACLs, you enter an ACL number as the ?¬?rst argument of the global
ACL statement. The test conditions for an ACL vary depending on whether the number identi?¬?es
a standard or extended ACL.
You can create many ACLs for a protocol. Select a different ACL number for each new ACL within
a given protocol. However, you can apply only one ACL per protocol, per direction, and per
interface.
Specifying an ACL number from 1 to 99 or 1300 to 1999 instructs the router to accept numbered
standard IPv4 ACL statements. Specifying an ACL number from 100 to 199 or 2000 to 2699
instructs the router to accept numbered extended IPv4 ACL statements.
212 Chapter 6: Managing Traffic with Access Control Lists
Table 6-1 lists the different ACL number ranges for each protocol.
1 XNS = Xerox Network Services
2 IPX = Internetwork Packet Exchange
3 SAP = Service Advertisement Protocol
4 VINES = Virtual Integrated Network Service
As of Cisco IOS Software Release 12.0, IPv4 ACLs have been expanded. The table shows that standard IPv4 ACLS have
been expanded to include the numbers 1300 to 1999, and the extended IPv4 ACLs have been expanded to include the
numbers 2000 to 2699.
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