Yealink VC110, Administrator'S Manual

Page: 68 / 268

Administrator‘s Guide for Yealink VC110 Video Conferencing Endpoint
56
DHCP (Dynamic Host Configuration Protocol) is a network protocol used to dynamically
allocate network parameters to network hosts. The automatic allocation of network
parameters to hosts eases the administrative burden of maintaining an IP network. The
endpoint complies with the DHCP specifications documented in RFC 2131. DHCP by
default, which allows the endpoint connected to the network to become operational by
obtaining IP addresses and additional network parameters from the DHCP server.
DHCP Option
DHCP provides a framework for passing information to TCP/IP network devices. Network
and other control information are carried in tagged data items that are stored in the
options field of the DHCP message. The data items themselves are also called options.
DHCP can be initiated by simply connecting the endpoint to the network. The endpoint
broadcasts DISCOVER messages to request network information carried in DHCP
options. The DHCP server responds with the specific values in the corresponding
options.
The following table lists the common DHCP options supported by the endpoint.
Parameter DHCP Option Description
Subnet Mask 1 Specifies the client‘s subnet mask.
Time Offset 2
Specifies the offset of the client's subnet in
seconds from Coordinated Universal Time
(UTC).
Router 3
Specifies a list of IP addresses for routers on
the client‘s subnet.
Time Server 4
Specifies a list of time servers available to the
client.
Domain Name
Server
6
Specifies a list of domain name servers
available to the client.
Log Server 7
Specifies a list of MIT-LCS UDP servers
available to the client.
Host Name 12 Specifies the name of the client.
Domain Server 15
Specifies the domain name that client should
use when resolving hostnames via DNS.
Broadcast
28
Specifies the broadcast address in use on the