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6.
In the
IP Subnet Mask
, enter the LAN subnet mask for the modem router.
7.
Click the
Apply
button.
Your settings are saved.
If you changed the LAN IP address of the modem router, you are disconnected when the changes take effect.
To reconnect, close your browser, relaunch it, and log in to the modem router at its new LAN IP address.
Manage the Router Information Protocol Settings
Router Information Protocol (RIP) lets the modem router exchange routing information with other routers. By default,
RIP is enabled in both directions (in and out) without a particular RIP version.
To manage the RIP settings:
1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2.
Enter
.
A login window opens.
3.
Enter the modem router user name and password.
The user name is
admin
.The default password is
password
.The user name and password are case-sensitive.
The BASIC Home page displays.
4.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup page displays.
5.
From the
RIP Direction
menu, select an RIP direction:
•
Both
.The modem router broadcasts its routing table periodically and incorporates information that it receives.
This is the default setting.
•
Out Only
. The modem router broadcasts its routing table periodically but does not incorporate the RIP
information that it receives.
•
In Only
.The modem router incorporates the RIP information that it receives but does not broadcast its routing
table.
6.
From the
RIP Version
menu, select an RIP version:
•
Disabled
. The RIP version is disabled. This is the default setting.
•
RIP-1
.This format is universally supported. It is adequate for most networks, unless you are using an unusual
network setup.
•
RIP-2
.This format carries more information. Both RIP-2B and RIP-2M send the routing data in RIP-2 format.
RIP-2B uses subnet broadcasting. RIP-2M uses multicasting.
7.
Click the
Apply
button.
Your settings are saved.
Manage the WAN and LAN Network Settings
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Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800
Page 207 / 299
Manage the DHCP Server Address Pool
By default, the modem router acts as a Dynamic Host Configuration Protocol (DHCP) server. The modem router
assigns IP, DNS server, and default gateway addresses to all computers that are connected to its LAN and WiFi
network. The assigned default gateway address is the LAN address of the modem router.
These addresses must be part of the same IP address subnet as the modem router’s LAN IP address. The default
DHCP address pool is 192.168.1.2–192.168.1.254.
The modem router delivers the following parameters to any LAN device that requests DHCP:
•
An IP address from the range that you define
•
Subnet mask
•
Gateway IP address (the modem router’s LAN IP address)
•
DNS server IP address (the modem router’s LAN IP address)
To specify the pool of IP addresses that the modem router assigns:
1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2.
Enter
.
A login window opens.
3.
Enter the modem router user name and password.
The user name is
admin
.The default password is
password
.The user name and password are case-sensitive.
The BASIC Home page displays.
Manage the WAN and LAN Network Settings
207
Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800
Page 208 / 299
4.
Select
ADVANCED > Setup > LAN Setup
.
5.
Make sure that the
Use Router as DHCP Server
check box is selected.
This check box is selected by default.
6.
Specify the range of IP addresses that the modem router assigns:
•
In the
Single/Start IP Address
field, enter the lowest number in the range.
This IP address must be in the same subnet as the modem router. By default, the starting IP address is
192.168.1.2.
•
In the
Finish IP Address
field, enter the number at the end of the range of IP addresses.
This IP address must be in the same subnet as the modem router. By default, the ending IP address is
192.168.1.254.
7.
Click the
Apply
button.
Your settings are saved.
Manage Reserved LAN IP Addresses
When you specify a reserved IP address for a computer on the LAN, that computer always receives the same IP
address each time it accesses the modem router’s DHCP server.
Reserve a LAN IP Address
You can assign a reserved IP address to a computer or server that requires permanent IP settings.
Manage the WAN and LAN Network Settings
208
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Page 209 / 299
To reserve an IP address:
1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2.
Enter
.
A login window opens.
3.
Enter the modem router user name and password.
The user name is
admin
.The default password is
password
.The user name and password are case-sensitive.
The BASIC Home page displays.
4.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup page displays.
5.
In the Address Reservation section, click the
Add
button.
6.
Either select a device from the Address Reservation Table by selecting the corresponding radio button or specify
the reserved IP address information:
•
In the
IP Address
field, enter the IP address to assign to the computer or device.
Choose an IP address from the modem router’s LAN subnet, such as 192.168.1.x.
•
In the
MAC Address
field, enter the MAC address of the computer or device.
•
In the
Device Name
field, enter the name of the computer or device.
7.
Click the
Add
button.
The reserved address is entered into the table on the LAN Setup page.
The reserved address is not assigned until the next time the computer or device contacts the modem router’s
DHCP server. Reboot the computer or device, or access its IP configuration and force a DHCP release and
renew.
Change a Reserved IP Address
You can change a reserved IP address entry.
To change a reserved IP address entry:
1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2.
Enter
.
A login window opens.
3.
Enter the modem router user name and password.
The user name is
admin
.The default password is
password
.The user name and password are case-sensitive.
The BASIC Home page displays.
Manage the WAN and LAN Network Settings
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Page 210 / 299
4.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup page displays.
5.
In the Address Reservation section, select the radio button next to the reserved address.
6.
Click the
Edit
button.
The Edit page displays.
7.
Change the settings.
8.
Click the
Apply
button.
Your settings are saved.
Remove a Reserved IP Address Entry
You can remove a reserved IP address entry.
To remove a reserved IP address entry:
1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2.
Enter
.
A login window opens.
3.
Enter the modem router user name and password.
The user name is
admin
.The default password is
password
.The user name and password are case-sensitive.
The BASIC Home page displays.
4.
Select
ADVANCED > Setup > LAN Setup
.
The LAN Setup page displays.
5.
In the Address Reservation section, select the radio button next to the reserved address.
6.
Click the
Delete
button.
The address entry is removed.
Disable the Built-In DHCP Server
By default, the modem router functions as a DHCP server. The modem router assigns IP, DNS server, and default
gateway addresses to all devices connected to the LAN. The assigned default gateway address is the LAN address
of the modem router.
You can use another device on your network as the DHCP server or specify the network settings of all your computers.
Manage the WAN and LAN Network Settings
210
Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800

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