Network Management; Dhcp (Dynamic Host Configuration Protocol) Server - Panasonic KX-NCP500 Manual

1.2 Network Management

1.2.1 DHCP (Dynamic Host Configuration Protocol) Server

To establish communication over a VoIP network, IP addresses must be assigned to IP telephones and the
PBX to identify their locations on the network. While these addresses can be assigned manually, it is also
possible to use a DHCP server to automatically assign IP address information. Using a DHCP server allows
you to centrally manage and automate the assignment of IP addresses.
When the IPCMPR/DSP cards are
connected to the network
IPCMPR/DSP Cards
Note
•
The PBX is not able to act as a DHCP server. To use the DHCP client function of IP telephones and
the IPCMPR/DSP cards, a separate DHCP server is required on the network, as shown above.
•
An IP telephone and the IPCMPR/DSP cards cannot request IP addresses from a DHCP server on
another LAN (connected through an IP network). They can only receive IP addresses from a DHCP
server on the same LAN. Therefore, when IP telephones are located on several LANs, a DHCP server
is required on each LAN. If a DHCP server is not present on the LAN, IP addresses for IP telephones
and the IPCMPR/DSP cards on that LAN must be assigned manually.
Document Version 2009-12
1 Request IP address
information
2 Assign IP address
DHCP Server
information to the
IPCMPR/DSP cards
1.2.1 DHCP (Dynamic Host Configuration Protocol) Server
When an IP telephone is
connected to the network
3 Request IP address
information
4 Assign IP address
information to an IP
telephone
IP Telephone
IP Networking Guide 7