This document describes the configuration required on a LANCOM managed switch of the GS-23xx series in order to configure a voice VLAN and automatically assign it to an IP telephone by means of OUI address.
Info
An OUI address consists of the first 24 bits of a MAC address. This is the manufacturer ID assigned by the IEEE. For LANCOM devices the OUI 00 is 00:A0:57.
The VoIP telephone has to be configured to set tag packets with the Voice VLAN ID ID (active tagging)
Procedure:
In this example, the voice VLAN has the ID 80.
The IP telephone should be assigned this VLAN ID automatically as soon as it is connected to the designated switch portVoice VLAN is activated on the switch port automatically, when a VoIP telephone is connected and recognized by the OUI.
1. Navigate to the menu Configuration → VLAN → Membership.
Add the VLAN 80 and assign a descriptive name.
For Port Members choose the designated router port.
2. Navigate to the menu Configuration Voice VLAN → OUI and add the OUI of your SIP telephone if necessary.
3. Switch to the menu Configuration → Voice VLAN → Configuration.
Activate the Voice VLAN by setting the Mode to Enabled.
Add the VLAN-ID80.
For the designated router port assign the Mode Forced. As Discovery Protocol assign OUI in the dropdown menu.
Assign the Mode Auto to all ports where SIP telephones shall be connected and assign the Discovery Protocol OUI.
4. Navigate to the menu Maintenance → Save/Restore → Save Start und save the configuration as Start Configuration.
Info
The Start Configuration is saved boot persistent in the device. Thus the configuration is also available after a reboot or a power outage.
5. To check the function switch to the menu Configuration → VLAN → Switch Status.
