Vigor2750 Series User’s Guide 135
Subnet Mask Type in an address code that determines the size of the network.
(Default: 255.255.255.0/ 24)
Enable DHCP DHCP stands for Dynamic Host Configuration Protocol. The
router by factory default acts a DHCP server for your network
so it automatically dispatch related IP settings to any local user
configured as a DHCP client. It is highly recommended that you
leave the router enabled as a DHCP server if you do not have a
DHCP server for your network.
You can configure the router to serve as a DHCP server for the
2nd subnet. Check the box to enable DHCP server setting.
Start IP Address Enter a value of the IP address pool for the DHCP server to start
with when issuing IP addresses. If the 2nd IP address of your
router is 220.135.240.1, the starting IP address must be
220.135.240.2 or greater, but smaller than 220.135.240.254.
IP Pool Counts Enter the number of IP addresses in the pool. The maximum is
10. For example, if you type 3 and the 2nd IP address of your
router is 220.135.240.1, the range of IP address by the DHCP
server will be from 220.135.240.2 to 220.135.240.11.
Lease Time It allows you to set the leased time for the specified PC.
Force DNS manual setting Force router to use DNS servers in this page instead of DNS
servers given by the Internet Access server (PPPoE, PPTP,
L2TP or DHCP server).
Primary IP Address 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 router will automatically
apply default DNS Server IP address: 194.109.6.66 to this field.
Secondary IP Address 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 router will automatically apply
default secondary DNS Server IP address: 194.98.0.1 to this
field.
The default DNS Server IP address can be found via Online
Status:
If both the Primary IP and Secondary IP Address fields are left
empty, the router will assign its own IP address to local users as
a DNS proxy server and maintain a DNS cache.
If the IP address of a domain name is already in the DNS cache,
the router will resolve the domain name immediately. Otherwise,
the router forwards the DNS query packet to the external DNS
server by establishing a WAN connection.
After finishing all the settings here, please click OK to activate them.