Contents
xiv
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
CHAPTER
18 Configuring the IP Permit List 18-1
Understanding How the IP Permit List Works 18-1
IP Permit List Default Configuration 18-2
Configuring the IP Permit List on the Switch 18-2
Adding IP Addresses to the IP Permit List 18-2
Enabling the IP Permit List 18-3
Disabling the IP Permit List 18-4
Clearing an IP Permit List Entry 18-4
CHAPTER
19 Configuring Protocol Filtering 19-1
Understanding How Protocol Filtering Works 19-1
Default Protocol Filtering Configuration 19-2
Configuring Protocol Filtering on the Switch 19-2
Configuring Protocol Filtering 19-2
Disabling Protocol Filtering 19-3
CHAPTER
20 Checking Status and Connectivity 20-1
Checking Module Status 20-1
Checking Port Status 20-2
Displaying the Port MAC Address 20-4
Displaying Port Capabilities 20-5
Using Telnet 20-6
Changing the Login Timer 20-6
Using Secure Shell Encryption for Telnet Sessions 20-7
Monitoring User Sessions 20-8
Using Ping 20-9
Understanding How Ping Works 20-9
Executing Ping 20-10
Using Layer 2 Traceroute 20-11
Layer 2 Traceroute Usage Guidelines 20-11
Identifying a Layer 2 Path 20-11
Using IP Traceroute 20-12
Understanding How IP Traceroute Works 20-12
Executing IP Traceroute 20-13
CHAPTER
21 Configuring CDP 21-1
Understanding How CDP Works 21-1