Web Management Guide-R04

Table Of Contents
Chapter 12
| Security Measures
Configuring Port Security
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Figure 222: Creating an IP Address Filter for Management Access
To show a list of IP addresses authorized for management access:
1. Click Security, IP Filter.
2. Select Show from the Action list.
Figure 223: Showing IP Addresses Authorized for Management Access
Configuring Port Security
Use the Security > Port Security page to configure the maximum number of device
MAC addresses that can be learned by a switch port, stored in the address table,
and authorized to access the network.
When port security is enabled on a port, 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 address
table will be authorized to access the network through that port. If a device with an
unauthorized MAC address attempts to use the switch port, the intrusion will be
detected and the switch can automatically take action by disabling the port and
sending a trap message.
Command Usage
The default maximum number of MAC addresses allowed on a secure port is
zero (that is, disabled). To use port security, you must configure the maximum
number of addresses allowed on a port.