Contents
ix
Catalyst 2950 Desktop Switch Software Configuration Guide
78-14982-01
Configuring a System Name and Prompt 7-48
Default System Name and Prompt Configuration 7-48
Configuring a System Name 7-48
Configuring a System Prompt 7-49
Understanding DNS 7-49
Default DNS Configuration 7-50
Setting Up DNS 7-50
Displaying the DNS Configuration 7-51
Creating a Banner 7-51
Default Banner Configuration 7-51
Configuring a Message-of-the-Day Login Banner 7-52
Configuring a Login Banner 7-53
Managing the MAC Address Table 7-54
Building the Address Table 7-54
MAC Addresses and VLANs 7-55
Default MAC Address Table Configuration 7-55
Changing the Address Aging Time 7-55
Removing Dynamic Address Entries 7-56
Configuring MAC Address Notification Traps 7-56
Adding and Removing Static Address Entries 7-58
Adding and Removing Secure Addresses 7-59
Displaying Address Table Entries 7-60
Managing the ARP Table 7-61
Switch Software Releases 7-61
CHAPTER
8 Configuring 802.1X Port-Based Authentication 8-1
Understanding 802.1X Port-Based Authentication 8-1
Device Roles 8-2
Authentication Initiation and Message Exchange 8-3
Ports in Authorized and Unauthorized States 8-4
Supported Topologies 8-5
Configuring 802.1X Authentication 8-5
Default 802.1X Configuration 8-6
802.1X Configuration Guidelines 8-7
Enabling 802.1X Authentication 8-8
Configuring the Switch-to-RADIUS-Server Communication 8-9
Enabling Periodic Re-Authentication 8-10
Manually Re-Authenticating a Client Connected to a Port 8-11
Changing the Quiet Period 8-11