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Page 46 / 168 Scroll up to view Page 41 - 45
Manage Internet, WAN, and LAN Settings and Use the WPS Wizard
46
AC1900, N900, and N450 WiFi
Cable Data Gateways
To set up a default DMZ server:
1.
On your computer, launch an Internet browser such as Mozilla Firefox or Microsoft
Internet Explorer.
2.
In the address field of your browser, enter
http://routerlogin.net
.
You are prompted to enter a user name and password.
3.
Type
admin
for the user name and type your password.
If you did not yet personalize your password, type
password
for the password.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > WAN Setup
.
The WAN Setup screen displays.
6.
Select the
Default DMZ Server
check box.
7.
Type the IP address for the DMZ server.
8.
Click the
Apply
button.
Your settings are saved and the cable data gateway might restart.
Manage the LAN Settings
You can change the LAN IP services such as Dynamic Host Configuration Protocol (DHCP)
and Routing Information Protocol (RIP).
By default, the cable data gateway uses private IP addresses on the LAN side and functions
as a DHCP server. The cable data gateway’s default LAN IP configuration is as follows:
•
LAN IP address.
192.168.0.1
•
Subnet mask.
255.255.255.0
These addresses are part of the designated private address range for use in private networks
and are suitable for most applications. If your network uses a different IP addressing scheme,
then make those changes in the LAN Setup screen.
Note:
If you change the LAN IP address of the cable data gateway while you
are connected through the browser, you are disconnected. To
continue to use the genie menus, open a new connection to the new
IP address and log in again.
Page 47 / 168
Manage Internet, WAN, and LAN Settings and Use the WPS Wizard
47
AC1900, N900, and N450 WiFi
Cable Data Gateways
View or Change the LAN Settings
You can view or change the LAN settings.
To view or change the LAN settings:
1.
On your computer, launch an Internet browser such as Mozilla Firefox or Microsoft
Internet Explorer.
2.
In the address field of your browser, enter
http://routerlogin.net
.
You are prompted to enter a user name and password.
3.
Type
admin
for the user name and type your password.
If you did not yet personalize your password, type
password
for the password.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup screen displays.
6.
View or change the LAN settings.
Page 48 / 168
Manage Internet, WAN, and LAN Settings and Use the WPS Wizard
48
AC1900, N900, and N450 WiFi
Cable Data Gateways
The following table describes the fields on the LAN Setup screen.
Field
Description
Device Name
By default, the device name is the cable data gateway model. You can change the
device name to another name.
LAN TCP/IP Setup
IP Address
The LAN IP address of the cable data gateway. The default LAN IP address is
192.168.0.1.
IP Subnet Mask
The LAN subnet mask of the cable data gateway. Combined with the IP address,
the IP subnet mask allows a device to detect which other addresses are local to it
and which must be reached through a gateway or cable data gateway. The default
IP subnet mask is 255.255.255.0.
Use Gateway as DHCP
Server
By default, the
Use Router as DHCP Server
check box is selected so that the
cable data gateway functions as a Dynamic Host Configuration Protocol (DHCP)
server. For more information, see
Use the WiFi Cable Data Gateway as a DHCP
Server
on page
48.
Starting IP Address
Specify the start of the range for the DHCP pool of IP addresses in the same
subnet as the cable data gateway. By default, the starting IP address is
192.168.0.2.
Ending IP Address
Specify the end of the range for the DHCP pool of IP addresses in the same
subnet as the cable data gateway. By default, the ending IP address is
192.168.0.254.
Address Reservation
A device with a reserved IP address on the LAN always receives the same IP
address when it accesses the cable data gateway’s DHCP server. Assign
reserved IP addresses to devices that require permanent IP settings.
For more information, see
Manage IP Address Reservation
on page
49.
7.
If you changed the settings, click the
Apply
button.
Your settings are saved and the cable data gateway might restart.
Use the WiFi Cable Data Gateway as a DHCP Server
By default, the cable data gateway functions as a DHCP server. The cable data gateway
assigns IP, DNS server, and default gateway addresses to all computers connected to the
LAN. The assigned default gateway address is the LAN address of the cable data gateway.
The cable data gateway assigns IP addresses to the attached computers from a pool of
addresses specified on the LAN Setup screen. Each pool address is tested before it is
assigned to avoid duplicate addresses on the LAN. For most applications, the default DHCP
and TCP/IP settings of the cable data gateway work well.
Note:
If you change the IP address, you first might need to disable the DHCP
server. After you change the IP address, you can reenable the DHCP server.
Page 49 / 168
Manage Internet, WAN, and LAN Settings and Use the WPS Wizard
49
AC1900, N900, and N450 WiFi
Cable Data Gateways
The cable data gateway delivers the following parameters to any LAN device that requests
DHCP:
•
An IP address from the range that you defined
•
Subnet mask
•
Gateway IP address (the cable data gateway’s LAN IP address)
•
DNS server IP address (the cable data gateway’s LAN IP address)
You can specify the pool of IP addresses that the cable data gateway assigns by setting the
starting IP address and ending IP address. These addresses must be part of the same IP
address subnet as the cable data gateway’s LAN IP address. Using the default addressing
scheme, define a range between 192.168.0.2 and 192.168.0.254, although you might want to
save part of the range for devices with fixed addresses.
To specify the pool of IP addresses that the cable data gateway assigns:
1.
On your computer, launch an Internet browser such as Mozilla Firefox or Microsoft
Internet Explorer.
2.
In the address field of your browser, enter
http://routerlogin.net
.
You are prompted to enter a user name and password.
3.
Type
admin
for the user name and type your password.
If you did not yet personalize your password, type
password
for the password.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup screen displays.
6.
Make sure that the
Use Gateway as a DHCP Server
check box is selected.
7.
Specify the range of IP addresses:
•
Starting IP Address
. Specify the start of the range for the pool of IP addresses in the
same subnet as the cable data gateway.
•
Ending IP Address
. Specify the end of the range for the pool of IP addresses in the
same subnet as the cable data gateway.
For example, using the default addressing scheme, define a range between 192.168.0.2
and 192.168.0.254, although you might want to save part of the range for devices with
fixed addresses.
8.
Click the
Apply
button.
Your settings are saved and the cable data gateway might restart.
Manage IP Address Reservation
When you specify a reserved IP address for a device on the LAN, that computer always
receives the same IP address each time it accesses the cable data gateway’s DHCP server.
Page 50 / 168
Manage Internet, WAN, and LAN Settings and Use the WPS Wizard
50
AC1900, N900, and N450 WiFi
Cable Data Gateways
Best practise is to assign a reserved IP address to a computer or server that requires
permanent IP settings.
Reserve an IP Address
You must know the IP address and MAC address of a device for which you want to reserve
an IP address.
To reserve an IP address:
1.
On your computer, launch an Internet browser such as Mozilla Firefox or Microsoft
Internet Explorer.
2.
In the address field of your browser, enter
http://routerlogin.net
.
You are prompted to enter a user name and password.
3.
Type
admin
for the user name and type your password.
If you did not yet personalize your password, type
password
for the password.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup screen displays.
6.
In the Address Reservation section, click the
Add
button.
The Address Reservation screen displays.
7.
In the
IP Address
field, type the IP address to assign to the device.
Choose an IP address from the cable data gateway’s LAN subnet, such as 192.168.0.x.

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