3Com 3C16710 manual Bk MANAGING.FRM Page 30 Tuesday, October 7, 1997 1138 AM

Models: 3C16710

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16710.bk : MANAGING.FRM Page 30 Tuesday, October 7, 1997 11:38 AM

4-30 CHAPTER 4: MANAGING YOUR HUB USING QUICK CONFIG MANAGER

MAC Address — Allows you to enter the MAC address for a device to be authorized to transmit through this port. When you have typed the MAC address, click on <Add. Use the format xx-xx-xx-xx-xx-xx for the MAC address.

<Add — Adds the MAC address to the Authorized addresses list.

Remove — Removes the selected address or addresses from the Authorized Address list.

DUD (Disconnect Unknown Device) Allows you to configure the learning and security mode of the port:

No Restriction — Disables all security and learning features.

Continually Learn — The port learns the MAC addresses of the devices transmitting to this port and stores them in its address table. The maximum number of addresses learned by the ports is determined by the value shown in the No. of Addresses field. When the table is full, the port continues to learn new addresses, overwriting the addresses it learned previously.

The port never automatically switches to full security (for example Auto Learn), you have to do this manually. While learning, packets received on a port are not repeated out of the other ports.

Auto Learn — The port learns the MAC addresses of the devices transmitting to this port and stores them permanently in its address table. The maximum number of addresses learned by the ports is determined by the value shown in the No. of Addresses field. When the table is full, the port automatically switches to Full Security mode and no other address are allowed to connect to this port. While learning, packets received on a port are not repeated out of the other ports.

Full Security — Learning is disabled and only the addresses entered as authorized addresses for this port are allowed to transmit. If an unauthorized address is detected, a trap will be sent (if traps are configured) to an IP/IPX-based management station, and the port is disabled (if Disable on Intrusion is selected).

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3Com 3C16710 manual Bk MANAGING.FRM Page 30 Tuesday, October 7, 1997 1138 AM