A
UTHENTICATION
C
OMMANDS
4-101
Port Security Commands
These commands can be used to disable the learning function or manually
specify secure addresses for a port. You may want to leave port security off
for an initial training period (i.e., enable the learning function) to register
all the current VLAN members on the selected port, and then enable port
security to ensure that the port will drop any incoming frames with a
source MAC address that is unknown or has been previously learned from
another port.
port security
This command enables or configures port security. Use the
no
form
without any keywords to disable port security. Use the
no
form with the
appropriate keyword to restore the default settings for a response to
security violation or for the maximum number of allowed addresses.
Syntax
port security
[
action
{
shutdown
|
trap
|
trap-and-shutdown
}
|
max-mac-count
address-count
]
no port security
[
action
|
max-mac-count
]
•
action
- Response to take when port security is violated.
-
shutdown
- Disable port only.
-
trap
- Issue SNMP trap message only.
-
trap-and-shutdown
- Issue SNMP trap message and disable
port.
• max-mac-count
-
address-count
- The maximum number of MAC addresses that can
be learned on a port. (Range: 0 - 20)
Command
Function
Mod
e
Page
port security
Configures a secure port
IC
3-101
mac-address-table static Maps a static address to a port in a VLAN
GC
3-34
show mac-address-table Displays entries in the bridge-forwarding
database
PE
3-35
Summary of Contents for 8612XL3
Page 2: ......
Page 26: ...CONTENTS xxvi ...
Page 40: ...INTRODUCTION 1 14 ...
Page 69: ...BASIC CONFIGURATION 3 15 ...
Page 175: ...PORT CONFIGURATION 3 121 ...
Page 337: ...IP ROUTING 3 283 Web Click Routing Protocol RIP Statistics ...
Page 379: ...MULTICAST ROUTING 3 325 Command Usage ...
Page 396: ...CONFIGURING THE SWITCH 3 342 ...
Page 582: ...COMMAND LINE INTERFACE 4 186 ...
Page 806: ... 224 Command Mode Privileged Exec Example Console clear vrrp 1 interface 1 counters Console ...
Page 826: ... 6 ...
Page 828: ...TROUBLESHOOTING B 2 ...
Page 838: ...GLOSSARY Glossary 10 ...
Page 845: ......