Dhcp Option 42, Option 2; Dhcp Option 12 - Yealink VS800 Administrator's Manual

Parameter
Subnet Mask
Time Offset
Router
Time Server
Domain Name Server
Host Name
Domain Server
Network Time Protocol Servers
Vendor-Specific Information
Vendor Class Identifier
TFTP Server Name

DHCP Option 42, Option 2

Your system can obtain the NTP server address via DHCP.
DHCP option 42 is used to obtain the available NTP server list.
DHCP option 2 is used to specify the offset (seconds) between the system's subnet and Coordinated Universal Time
(UTC).
Related tasks
NTP Settings

DHCP Option 12

You can specify a hostname for the system. When the system sends the request of DHCP DISCOVER, it will report
the configured host name to the DHCP server via DHCP option 12. For more information, refer to
• Configuring the Host Name
Configuring the Host Name
Procedure
1. On your web user interface, go to Network > LAN Configuration > Host Name.
2. Configure and save the following settings:
DHCP Options
1
2
3
4
6
12
15
42
43
60
66
| Configuring Network Settings | 57
Description
Specify the subnet mask of the
client.
Specify the offset between the
client subnet and the Coordinated
Universal Time (UTC).
Specify a list of IP addresses for
routers on the client's subnet.
Specify a list of time servers
available to the client.
Specify a list of domain name
servers available to the client.
Specify the name of the client.
Specify the domain name that
client should use when resolving
hostnames via DNS.
Specify the list of NTP server
address available to the client.
Identify the vendor-specific
information.
Identify the vendor type.
Identify a TFTP server when the
'sname' field in the DHCP header
has been used for DHCP options.
RFC 1035.