Installation guide

58 Planning and Installation Guide ShoreTel 14.2
Network Requirements and Preparation Configuring Automatic VLAN Assignment through DHCP
3
Configuring Automatic VLAN Assignment through
DHCP
You can configure an IP phone to automatically determine its VLAN ID through DHCP. When the
phone boots for the first time, it acquires an IP address via DHCP similar to any other network device.
However, the DHCP response also specifies (using a proprietary DHCP option) the VLAN ID for the
phone to use. The phone then releases the IP address originally assigned to it and reboots. After the
phone reboots, all packets are tagged with the VLAN ID specified in the original DHCP response.
The Automatic VLAN Assignment feature is configured on the DHCP server rather than through
ShoreTel Director.
To configure automatic VLAN assignment on a Microsoft DHCP server:
1. Open DHCP Manager on your Microsoft DHCP server.
2. Right-click the DHCP server and select Set pre-defined options.
3 Germany, Austria
4 English (UK), Czech Republic, Ireland, Malaysia, Greece, Hong Kong, New
Zealand, Poland, India, Romania, Singapore, South Africa, United Arab
Emirates, Indonesia, Finland
5 France (Parisian), Belgium, Luxembourg, Switzerland, Monaco (France)
6 Netherlands
7 Mexico, Cost Rica, Chile
8 Denmark
9Italy
10 Sweden
11 China
12 Norway, Finland
13 Brazil (Portuguese)
14 Japan
15 South Korea
17 Taiwan (Mandarin)
18 Portugal
22 Bulgaria
23 Australia, Fiji
Table 16: Language Numbers by Country for DHCP Option 156 (Continued)
Number Language (Country)