LevelOne SIP IP PBX VOI-9300 - Manual (Page 14)

2007-11-21 14 1
8.1.4 DHCP Server
The embedded DHCP server in NAT will automatically assign IP address to the network devices.
DHCP Server Status: To show the current DHCP server status
DHCP Server Start/Stop: To enable/disable DHCP Server
Start/End IP Address: DHCP Server will assign an IP within the start/end IP address range, e.g.
192.168.1.100－192.168.1.200. Note that the start IP and end IP must be
in the same 192.168.1.xxx network.
Mask: Usually 255.255.255.0 for subnet mask
Default Gateway: The IP address for NAT gateway.
DNS Server: The Domain Name Server IP address.
8.1.5 DDNS Settings
DDNS is an abbreviation for Dynamic Domain Name Service. In general, ISP will allocate IP PBX
a dynamic IP address by ADSL PPPoE mode connection when you access Internet, and the IP
address may change day by day. In other words, the IP-PBX IP address may change and can NOT
be reached by a fixed IP address. In such a case, DDNS can be a resolution.
DDNS resolution is used to associate domain name with dynamic IP address acquired from ISP.
Users would only need to know the domain name, and do not care about the current PBX IP address.
For DDNS, you should firstly register an account onto, for example, www.3322.org or
www.dyndns.com for free. The IP-PBX supports the DDNS settings for these two most popular DDNS;
3322.org and dyndns.org.