Cisco 8800 Series Administration Manual page 59

Cisco IP Phone Installation
Field Field Type
or Choices
VLAN ID
PC port VLAN ID
PC port mirror On
Off
DHCP VLAN option
Default Description
1 Enter a VLAN ID for the IP phone when you use a VLAN without
CDP (VLAN enabled and CDP disabled). Note that only voice
packets are tagged with the VLAN ID. Do not use the 1 value for
the VLAN ID. If VLAN ID is 1, you cannot tag voice packets
with the VLAN ID.
1 Enter a value of the VLAN ID that is used to tag communications
from the PC port on the phone.
The phone tags all the untagged frames coming from the PC (it
does not tag any frames with an existing tag).
Valid values: 0 through 4095
Default: 0
Off Adds the ability to port mirror on the PC port. When enabled, you
can see the packets on the phone. Select On to enable PC port
mirroring and select Off to disable it.
Enter a predefined DHCP VLAN option to learn the voice VLAN
ID.
When you use a VLAN ID with CDP, LLDP, or manually select
a VLAN ID, that VLAN ID takes precedent over the selected
DHCP VLAN option.
Valid values are:
• Null
• 128 to 149
• 151 to 158
• 161 to 254
Default value is null.
Cisco recommends that you use DHCP Option 132.
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
Network Configuration Fields
43