Examples For Compiling Acls - Cisco Catalyst 2950 Software Configuration Manual

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Configuring ACLs

Examples for Compiling ACLs

For detailed information about compiling ACLs, refer to the Security Configuration Guide and the "IP

Services" chapter of the Cisco IOS IP and IP Routing Configuration Guide for IOS Release 12.1.

a Cisco router. A host is connected to the network through the Internet using a WAN link.

Use switch ACLs to do these:

Figure 23-2 Using Switch ACLs to Control Traffic

workstations

This example uses a standard ACL to allow access to a specific Internet host with the address

172.20.128.64.

Switch(config)# access-list 6 permit 172.20.128.64 0.0.0.0

Switch(config)# end

Switch(config)# interface gigabitethernet0/1

Switch(config-if)# ip access-group 6 in

Catalyst 2950 Desktop Switch Software Configuration Guide

shows a small networked office with a stack of Catalyst 2950 switches that are connected to

Create a standard ACL, and filter traffic from a specific Internet host with an address 172.20.128.64.

Create an extended ACL, and filter traffic to deny HTTP access to all Internet hosts but allow all

other types of access.

Cisco router

Catalyst 2950

Configuring Network Security with ACLs