Panasonic KX-NCP500, Networking Manual

Page: 7 / 110

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.
Assign IP address
information to an IP
telephone
When the MPR/DSP cards are
connected to the network When an IP telephone is
connected to the network
Request IP address
information 1
Assign IP address
information to the
MPR/DSP cards 2
Request IP address
information 3
4
IP Telephone
DHCP Server
MPR/DSP Cards
Note
•
The IP address for the IP-EXT16 card cannot be assigned automatically using a DHCP server. This
IP address must be assigned manually using the Maintenance Console (PC programming software of
the PBX). For details, refer to "4.4 Programming the IP-EXT16 Card (KX-TDE series only)".
•
The PBX is not able to act as a DHCP server. To use the DHCP client function of IP telephones and
the MPR/DSP cards, a separate DHCP server is required on the network, as shown above.
•
An IP telephone and the MPR/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
MPR/DSP cards on that LAN must be assigned manually.
Document Version 2010-08 IP Networking Guide 7
1.2.1 DHCP (Dynamic Host Configuration Protocol) Server