Panasonic KX-NS1000, Installation Manual

Page: 381 / 416

You can enable/disable the DHCP relay agent and specify the relay destination DHCP server.
IP-PT KX-NS1000
Built- in
Router
Switching
Hub
DHCP Relay
Agent
DHCP Discover
(Broadcast)
DHCP Offer
(Broadcast)
INTERNET
DHCP Discover
(Unicast)
DHCP
Server
DHCP Offer
(Unicast)
LAN
Conditions
•
This PBX supports RFC 1542 (Clarifications and Extensions for the Bootstrap Protocol).
•
To enable sending multicast packets on the WAN side, the DHCP relay agent feature can be used only
when the built-in router feature is enabled.
•
When the built-in router feature is enabled, the PBX must act as the network gateway for the LAN.
Therefore, the default gateway address that the DHCP server distributes is changed to the IP address of
the PBX’s LAN port.
•
This feature cannot be configured if the method for acquiring IP addresses on the LAN side is DHCP mode.
PC Programming Manual References
28.2.1 Network Service—[2-1] Server Feature—DHCP
8.6.4 Dynamic DNS
Description
If the PBX’s WAN-side IP address is assigned dynamically, the PBX can notify the DNS server of its current
IP address. Since the PBX updates its DNS record each time it connects to the network, other devices can
always connect to the PBX using the same hostname, even if the PBX’s WAN-side IP address changes each
time the PBX reconnects to the network.
You can enable/disable the Dynamic DNS feature and specify the dynamic DNS server.
Conditions
•
The Dynamic DNS feature differs from the dynamic DNS defined in RFC 2136. It uses HTTP to update the
DNS record. The update method differs depending on the DNS server operator. Although some operators
may support FTP or e-mail for updating the DNS record, this PBX only supports HTTP.
•
The KX-NS1000 supports only type A records.
•
For details about what values to use for the DNS server settings, consult the network administrator.
Installation Manual 381
8.6.4 Dynamic DNS