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The DHCP Server provides dynamic IP addresses to endpoints on the network and prevents IP address conflicts. It can also provide additional network-related configurations, such as the default gateway, DNS servers, and other options that endpoints can request.

Info
titleNote

Only one DHCP server can be enabled on a network at a time.

DHCP Server Options

You can configure blocks of IP addresses, the default gateway, DNS servers, and other parameters that can be served to requesting devices. The following table lists the options supported by the DHCP Server.

Caption
0Table
1DHCP Server Options
OptionDescription
1Subnet Mask—LAN Netmask of the
Spacevars
0product2
, Network page
2Time Offset
3

Router—LAN IP of the

Spacevars
0product2
, Network page

6DNS Server—DNS IP, Network page
42

NTP Servers

51IP address lease time—Lease duration in seconds, DHCP page
53DHCP Message Type—Set by DHCP server
54Server Identifier—LAN IP of the
Spacevars
0product2
66

Server-Name (Polycom uses this for FTP server name)

67Boot file name
129Call Server IP Address—VLAN ID Discovery
150

Phone Image TFTP Server IP—LAN IP of the

Spacevars
0product2
, Network Page

159

Specifies a text string in the form of an FQDN for Polycom phones. It can be used to point the Polycom phones to the domain name of a TFTP server using HTTP.

160

Specifies a text string in the form of an FQDN for Polycom phones. It can be used to point the Polycom phones to the domain name of a TFTP server using HTTPS.

You do not have to enable DHCP on your system if a DHCP server exists elsewhere in your company network, but at least one DHCP server must exist on an accessible network. When you have enabled the DHCP server, you can turn it on or off without changing other settings by unselecting the Enable DHCP Server checkbox.


The DHCP IP Address Ranges table (refer to the DHCP IPv4 Address Range Settings screen capture) shows the dynamic addresses to use for the LAN devices.

Configuring the DHCP Server on the

Spacevars
0product2
includes enabling the server and configuring the DHCP IP Address range to be used by LAN devices. To configure the DHCP server, refer to the following sections: