A
UTHENTICATION
C
OMMANDS
4-103
Command Usage
• If you enable port security, the switch stops learning new MAC
addresses on the specified port when it has reached a configured
maximum number. Only incoming traffic with source addresses
already stored in the dynamic or static address table will be accepted.
• First use the
port security max-mac-count
command to set the
number of addresses, and then use the
port security
command to
enable security on the port.
• Use the
no port security max-mac-count
command to disable port
security and reset the maximum number of addresses to the default.
• You can also manually add secure addresses with the
mac-address-table static
command.
• A secure port has the following restrictions:
- Cannot use port monitoring.
- Cannot be a multi-VLAN port.
- Cannot be connected to a network interconnection device.
- Cannot be a trunk port.
• If a port is disabled due to a security violation, it must be manually
re-enabled using the
no
shutdown
command.
Example
The following example enables port security for port 5, and sets the
response to a security violation to issue a trap message:
Related Commands
shutdown (4-151)
mac-address-table static (4-178)
show mac-address-table (4-180)
Console(config)#interface ethernet 1/5
Console(config-if)#port security action trap
Summary of Contents for 6152L2
Page 2: ......
Page 18: ...TABLES xiv ...
Page 32: ...INTRODUCTION 1 10 ...
Page 46: ...INITIAL CONFIGURATION 2 14 ...
Page 185: ...PORT CONFIGURATION 3 139 Figure 3 61 Displaying Etherlike and RMON Statistics ...
Page 249: ...QUALITY OF SERVICE 3 203 Figure 3 90 Configuring Policy Maps ...
Page 290: ...CONFIGURING THE SWITCH 3 244 ...
Page 303: ...COMMAND GROUPS 4 13 VC VLAN Database Configuration ...
Page 434: ...COMMAND LINE INTERFACE 4 144 ...
Page 568: ...TROUBLESHOOTING B 4 ...
Page 581: ......