D-Link DES-3225G User Manual

Page 58

24-port NWay Ethernet Switch User’s Guide

Using the Console Interface

The Configure Filtering and Forwarding Table screen allows you to allows you to stop or start address learning,

change the way the Switch treats MAC address table entries, and select an age-out time of the MAC address in the

selected address table. This screen also permits you to access three additional configuration screens from the menu at the

bottom of the screen.

Choose Configure Filtering and Forwarding Table from the Configuration menu to access the following screen:

Figure 6-20. Configure Filtering and Forwarding Table screen

The following fields at the top of the screen can be set:

♦

Lock Address Table (Stops Auto-Learning)

Mostly used for security purposes, when the forwarding table is

locked the Switch will no longer learn the MAC addresses for new hosts. If your network configuration doesn’t change,

locking the forwarding table helps keep intruders off your network since any packet coming from an unknown source

address will be dropped by the Switch.

♦

Address Table Lookup Mode

This setting allows the user to tailor the MAC address look up procedure. Choices

are Level 0, Level 1, Level 2, Level 3, Level 4, Level 5, Level, 6, Level 7. The higher the level, the more MAC

addresses can be learned by the Switch. However, a side effect is that throughput will be degraded the higher the level

you select. Level 1 is the default.

♦

MAC Address Aging

Enter the desired MAC address age-out time in this field (10 to 1000000 seconds).

Please refer to the Packet Forwarding section of the “Switch Management Concepts” chapter of this manual for more

detailed information.

Configure Static Forwarding Table

The Static Forwarding Table displays a list of manually defined static MAC address entries.