Draytek vigor3900 User Manual page 123

IPv4 Protocol
Mode
IP Address
Subnet Mask
DHCP Server
DHCP Start IP
DHCP End IP
DNS
DHCP Routers
DHCP Options
Vigor3900 Series User's Guide
address from the drop down list for such profile.
Display the type for the IPv4 protocol for such profile.
Choose NAT or ROUTING as the operation mode for such
profile.
Type the IP address of the router for the LAN profile.
Use the drop down list to choose a suitable mask for the LAN
profile.
Enable – Click it to enable the DHCP server. The DHCP
server will assign the IP address randomly for the LAN user.
The range of the IP addresses must be defined in DHCP Start
IP and DHCP End IP.
Disable – Click it to disable the DHCP server.
Type an IP address as the starting point for DHCP server.
Type an IP address as the ending point for DHCO server.
Set the private IP address for DNS server. If this field is
blank, users on LAN will treat Vigor3900 as the DNS server.
Add – Click it to add a new IP address for DNS server.
Save – Click it to save the setting.
– click the icon to remove the selected entry.
In general, this box will be blank. It means Vigor3900 will be
regarded as the gateway for the user.
However, if you want to use other gateway, please assign the
IP address in this field.
– click the icon to clear the IP setting.
DHCP packets can be processed by adding option number
and data information when such function is enabled.
Each DHCP option is composed by an option number with
data. For example,
Option number:100
Data: abcd
When such function is enabled, the specified values for
DHCP option will be seen in DHCP reply packets.
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