| Device Network |
18
Description
It configures the custom DHCP option for requesting provisioning server address.
Multiple DHCP options are separated by commas.
Note
: It works only if “static.auto_provision.dhcp_option.enable” is set to 1 (On).
Permitted
Values
Integer from 128 to 254
Default
160,161
Web UI
Settings
>
Auto Provision
>
Custom Option
[1]
If you change this parameter, the device will reboot to make the change take effect.
DHCP Option 66, Option 43 and Custom Option
During the startup, the device will automatically detect the custom option, option 66, or option 43 for
obtaining the provisioning server address. The priority of obtaining the provisioning server address is as
follows: custom option > option 66 (identify the TFTP server) > option 43.
The Teams device can obtain the Auto Configuration Server (ACS) address by detecting option 43 during
startup.
To obtain the server address via DHCP option, make sure you have configured the DHCP option on the
device. The option must be in accordance with the one defined in the DHCP server.
Note:
If you fail to configure the DHCP options for discovering the provisioning server on the DHCP
server, an alternate method of automatically discovering the provisioning server address is required.
One possibility is that connecting to the secondary DHCP server that responds to DHCP INFORM
queries with a requested provisioning server address. For more information, refer to
.
If a single alternate DHCP server responds, this is functionally equivalent to the scenario where
the primary DHCP server responds with a valid provisioning server address. If no DHCP server
responds, the INFORM query process will retry and until the time is out.
DHCP Option 42 and Option 2
Yealink Teams devices can use the NTP server address offered by DHCP.
DHCP option 42 is used to specify a list of NTP servers available to the client by IP address. NTP servers
should be listed in order of preference.
DHCP option 2 is used to specify the offset of the client’s subnet in seconds from Coordinated Universal
Time (UTC).
Related information
DHCP Option 12
You can specify a hostname for the device when using DHCP. The DHCP client uses option 12 to send a
predefined hostname to the DHCP registration server. The name may or may not be qualified with the local
domain name (based on
for character restrictions.
•
DHCP Option 12 Hostname Configuration
DHCP Option 12 Hostname Configuration
The following table lists the parameter you can use to configure DHCP option 12 hostname.
Parameter
static.network.dhcp_host_name
[1]
<y0000000000xx>.cfg
Summary of Contents for T58A Teams
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