Installation guide
Table Of Contents
- Chapter 1: Introduction
- Chapter 2: Initial Configuration
- Chapter 3: Configuring the Switch
- Using the Web Interface
- Navigating the Web Browser Interface
- Panel Display
- Main Menu
- Basic Configuration
- Displaying System Information
- Displaying Switch Hardware/Software Versions
- Displaying Bridge Extension Capabilities
- Setting the Switch’s IP Address
- Enabling Jumbo Frames
- Managing Firmware
- Saving or Restoring Configuration Settings
- Console Port Settings
- Telnet Settings
- Configuring Event Logging
- Resetting the System
- Setting the System Clock
- Simple Network Management Protocol
- User Authentication
- Configuring User Accounts
- Configuring Local/Remote Logon Authentication
- Configuring Encryption Keys
- AAA Authorization and Accounting
- Configuring HTTPS
- Replacing the Default Secure-site Certificate
- Configuring the Secure Shell
- Configuring Port Security
- Configuring 802.1X Port Authentication
- Web Authentication
- Network Access - MAC Address Authentication
- MAC Authentication
- Access Control Lists
- Port Configuration
- Address Table Settings
- Spanning Tree Algorithm Configuration
- VLAN Configuration
- Link Layer Discovery Protocol
- Class of Service Configuration
- Quality of Service
- VoIP Traffic Configuration
- Multicast Filtering
- Multicast VLAN Registration
- DHCP Snooping
- IP Source Guard
- IP Clustering
- UPnP
- Chapter 4: Command Line Interface
- Using the Command Line Interface
- Entering Commands
- Command Groups
- Line Commands
- General Commands
- System Management Commands
- Flash/File Commands
- Authentication Commands
- Access Control List Commands
- SNMP Commands
- Interface Commands
- Mirror Port Commands
- Rate Limit Commands
- Link Aggregation Commands
- Address Table Commands
- LLDP Commands
- lldp
- lldp holdtime-multiplier
- lldp medFastStartCount
- lldp notification-interval
- lldp refresh-interval
- lldp reinit-delay
- lldp tx-delay
- lldp admin-status
- lldp notification
- lldp mednotification
- lldp basic-tlv management-ip-address
- lldp basic-tlv port-description
- lldp basic-tlv system-capabilities
- lldp basic-tlv system-description
- lldp basic-tlv system-name
- lldp dot1-tlv proto-ident
- lldp dot1-tlv proto-vid
- lldp dot1-tlv pvid
- lldp dot1-tlv vlan-name
- lldp dot3-tlv link-agg
- lldp dot3-tlv mac-phy
- lldp dot3-tlv max-frame
- lldp dot3-tlv poe
- lldp medtlv extpoe
- lldp medtlv inventory
- lldp medtlv location
- lldp medtlv med-cap
- lldp medtlv network-policy
- show lldp config
- show lldp info local-device
- show lldp info remote-device
- show lldp info statistics
- UPnP Commands
- Spanning Tree Commands
- spanning-tree
- spanning-tree mode
- spanning-tree forward-time
- spanning-tree hello-time
- spanning-tree max-age
- spanning-tree priority
- spanning-tree pathcost method
- spanning-tree transmission-limit
- spanning-tree mst-configuration
- mst vlan
- mst priority
- name
- revision
- max-hops
- spanning-tree spanning-disabled
- spanning-tree cost
- spanning-tree port-priority
- spanning-tree edge-port
- spanning-tree portfast
- spanning-tree link-type
- spanning-tree loopback-detection
- spanning-tree loopback-detection release-mode
- spanning-tree loopback-detection trap
- spanning-tree mst cost
- spanning-tree mst port-priority
- spanning-tree protocol-migration
- show spanning-tree
- show spanning-tree mst configuration
- VLAN Commands
- Priority Commands
- Quality of Service Commands
- Voice VLAN Commands
- Multicast Filtering Commands
- Multicast VLAN Registration Commands
- IP Interface Commands
- IP Source Guard Commands
- DHCP Snooping Commands
- IP Cluster Commands
- Appendix A: Software Specifications
- Appendix B: Troubleshooting
- Glossary
- Index
Authentication Commands
4-91
4
authentication login
This command defines the login authentication method and precedence. Use the no
form to restore the default.
Syntax
authentication login {[local] [radius] [tacacs]}
no authentication login
• local - Use local password.
• radius - Use RADIUS server password.
• tacacs - Use TACACS server password.
Default Setting
Local
Command Mode
Global Configuration
Command Usage
• RADIUS uses UDP while TACACS+ uses TCP. UDP only offers best effort
delivery, while TCP offers a connection-oriented transport. Also, note that
RADIUS encrypts only the password in the access-request packet from the
client to the server, while TACACS+ encrypts the entire body of the packet.
• RADIUS and TACACS+ logon authentication assigns a specific privilege level
for each user name and password pair. The user name, password, and
privilege level must be configured on the authentication server.
• You can specify three authentication methods in a single command to indicate
the authentication sequence. For example, if you enter “authentication login
radius tacacs local,” the user name and password on the RADIUS server is
verified first. If the RADIUS server is not available, then authentication is
attempted on the TACACS+ server. If the TACACS+ server is not available,
the local user name and password is checked.
Example
Related Commands
username - for setting the local user names and passwords (4-37)
Console(config)#authentication login radius
Console(config)#