Cisco Systems 3130 User Manual
25-11
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter 25 Configuring Port-Based Traffic Control
Configuring Port Security
•
A secure port cannot be a private-VLAN port.
•
When you enable port security on an interface that is also configured with a voice VLAN, set the
maximum allowed secure addresses on the port to two. When the port is connected to a Cisco IP
phone, the IP phone requires one MAC address. The Cisco IP phone address is learned on the voice
VLAN, but is not learned on the access VLAN. If you connect a single PC to the Cisco IP phone,
no additional MAC addresses are required. If you connect more than one PC to the Cisco IP phone,
you must configure enough secure addresses to allow one for each PC and one for the phone.
maximum allowed secure addresses on the port to two. When the port is connected to a Cisco IP
phone, the IP phone requires one MAC address. The Cisco IP phone address is learned on the voice
VLAN, but is not learned on the access VLAN. If you connect a single PC to the Cisco IP phone,
no additional MAC addresses are required. If you connect more than one PC to the Cisco IP phone,
you must configure enough secure addresses to allow one for each PC and one for the phone.
•
When you enter a maximum secure address value for an interface, and the new value is greater than
the previous value, the new value overwrites the previously configured value. If the new value is less
than the previous value and the number of configured secure addresses on the interface exceeds the
new value, the command is rejected.
the previous value, the new value overwrites the previously configured value. If the new value is less
than the previous value and the number of configured secure addresses on the interface exceeds the
new value, the command is rejected.
•
The switch does not support port security aging of sticky secure MAC addresses.
Table 25-3
Port Security Compatibility with Other Switch Features
Type of Port or Feature on Port
Compatible with Port Security
DTP
1
port
2
1.
DTP = Dynamic Trunking Protocol
2.
A port configured with the switchport mode dynamic interface configuration command.
No
Trunk port
Yes
Dynamic-access port
3
3.
A VLAN Query Protocol (VQP) port configured with the switchport access vlan dynamic interface configuration command.
No
Routed port
No
SPAN source port
Yes
SPAN destination port
No
EtherChannel
No
Tunneling port
Yes
Protected port
Yes
IEEE 802.1x port
Yes
Voice VLAN port
4
4.
You must set the maximum allowed secure addresses on the port to two plus the maximum number of secure addresses
allowed on the access VLAN.
allowed on the access VLAN.
Yes
Private VLAN port
No
IP source guard
Yes
Dynamic Address Resolution Protocol (ARP) inspection
Yes
Flex Links
Yes