Viewing the switch's MAC address assignments for VLANs configured on the switch

The Management Address Information screen lists the MAC addresses for:

Base switch (default VLAN; VID=1)
Any additional VLANs configured on the switch.

Also, the Base MAC address appears on a label on the back of the switch.


	NOTE: The Base MAC address is used by the first (default) VLAN in the switch. This is usually the VLAN named "DEFAULT_VLAN" unless the name has been changed (by using the VLAN Names screen). On the switches covered in this guide, the VID (VLAN identification number) for the default VLAN is always "1," and cannot be changed.

From the Main Menu, select

1. Status and Counters

2. Switch Management Address Information

If the switch has only the default VLAN, the following screen appears. If the switch has multiple static VLANs, each is listed with its address data.

Example: of the Management Address Information screen

Viewing the port and VLAN MAC addresses

The MAC address assigned to each switch port is used internally by such features as Flow Control and the spanning-tree protocol. Using the walkmib command to determine the MAC address assignments for individual ports can sometimes be useful when diagnosing switch operation.


	NOTE: This procedure displays the MAC addresses for all ports and existing VLANs in the switch, regardless of which VLAN you select.

If the switch is at the CLI Operator level, use the enable command to enter the Manager level of the CLI.
Enter the following command to display the MAC address for each port on the switch:
```
HP Switch# walkmib ifPhysAddress
```
(The above command is not case-sensitive.)

Example:

An HP 8212zl switch with the following module configuration shows MAC address assignments similar to those shown in Example: of Port MAC address assignments on a switch:

A 4-port module in slot A, a 24-port module in slot C, and no modules in slots B and D

Two non-default VLANs configured

Example: of Port MAC address assignments on a switch

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