Operation Manual
VigorAP 902 User’s Guide 
35
902. 
VLAN ID – Type the number as VLAN ID tagged on the 
transmitted packet. “0” means no VALN tag. 
DHCP Server 
Configuration 
DHCP stands for Dynamic Host Configuration Protocol. DHCP 
server can automatically dispatch related IP settings to any local 
user configured as a DHCP client. 
Enable Server - Enable Server lets the modem assign IP address 
to every host in the LAN. 
  Start IP Address - Enter a value of the IP address pool for 
the DHCP server to start with when issuing IP addresses. If 
the 1st IP address of your modem is 192.168.1.2, the 
starting IP address must be 192.168.1.3 or greater, but 
smaller than 192.168.1.254. 
  End IP Address - Enter a value of the IP address pool for 
the DHCP server to end with when issuing IP addresses. 
  Subnet Mask - Type in an address code that determines 
the size of the network. (Default: 255.255.255.0/ 24) 
  Default Gateway - Enter a value of the gateway IP address 
for the DHCP server. 
  Lease Time - It allows you to set the leased time for the 
specified PC. 
  Primary DNS Server - You must specify a DNS server IP 
address here because your ISP should provide you with 
usually more than one DNS Server. If your ISP does not 
provide it, the modem will automatically apply default 
DNS Server IP address: 194.109.6.66 to this field. 
  Secondary DNS Server - You can specify secondary DNS 
server IP address here because your ISP often provides you 
more than one DNS Server. If your ISP does not provide it, 
the modem will automatically apply default secondary 
DNS Server IP address: 194.98.0.1 to this field. 
Relay Agent - Specify which subnet that DHCP server is located 
the relay agent should redirect the DHCP request to. 
  DHCP Server IP Address for Relay Agent - It is available 
when Enable Relay Agent is selected. Set the IP address of 
the DHCP server you are going to use so the Relay Agent 
can help to forward the DHCP request to the DHCP server.
  Primary DNS Server - You must specify a DNS server IP 
address here because your ISP should provide you with 
usually more than one DNS Server. If your ISP does not 
provide it, the modem will automatically apply default 
DNS Server IP address: 194.109.6.66 to this field. 
  Secondary DNS Server - You can specify secondary DNS 
server IP address here because your ISP often provides you 
more than one DNS Server. If your ISP does not provide it, 
the modem will automatically apply default secondary 
DNS Server IP address: 194.98.0.1 to this field. 










