User manual

IP address for the First and Second DNS servers.

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.

Subnet Mask: Usually 255.255.255.0 for subnet mask

Gateway: The IP address for NAT gateway, i.e the UTG7204-ON LAN IP

192.168.1.1.

DNS Server: The IP address of Domain Name Server.

8.1.5 DDNS Settings

DDNS is an abbreviation for Dynamic Domain Name Service. In general, ISP will assign a dynamic IP

address to IP PBX by ADSL PPPoE mode connection, and the dynamic IP address may change day

by day. In other words, the IP-PBX can NOT be reached with a fixed IP address. In such a case,

DDNS can be used for resolving the current IP address for PBX.

DDNS is used to associate domain name with dynamic IP address acquired from ISP, and it keep

updating the current IP address of IP PBX with the associated domain name. Users would get the

current PBX address from its domain name from DDNS server. For DDNS, you firstly need to register

a user account onto, for example, www.3322.org or www.dyndns.com. The UTG7204-ON supports

the DDNS settings for these two most popular free DDNS; 3322.org and dyndns.org.