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Advanced Settings
66
N450 WiFi Cable Modem Router Model N450/CG3000Dv2
The default user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The modem router main menu displays.
3.
In the main menu, under Advanced, select
Port Triggering
.
The port triggering screen displays.
4.
Click the
Reset
button.
The trigger and target ranges return to zero.
DMZ Host
You can set up a default DMZ computer. Specifying a default DMZ computer allows you to
set up a computer that is available to anyone on the Internet for services that you have not
defined. To minimize security risks, set up the DMZ host only if you are willing to risk open
access. If you do not define a DMZ host, the modem router discards any undefined service
requests.
To set up a DMZ host:
1.
Type
in the address field of your web browser.
A login screen displays.
2.
Enter the modem router user name and password.
The default user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The modem router main menu displays.
3.
In the main menu, under Advanced, select
DMZ Host
.
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Advanced Settings
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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
The following screen displays:
4.
Select the
Respond to Ping on WAN Port
check box.
When you select this check box, the modem router, not the DMZ computer, responds to a
ping request.
For example, some systems tracking the performance of the broadband connections in
terms of latency and packet loss need the modem router to reply to ping requests.
5.
Type the last digits of the IP address in the
DMZ Address
field.
The DMZ host feature is disabled when the last digit is zero.
6.
Click the
Apply
button.
LAN IP Setup
You can configure LAN services such as the IP address of the modem router and DHCP. The
TCP/IP and DHCP default values work fine in most cases.
Note:
If you disable the DHCP server, assign a static IP address to your
computer to reconnect to the modem router and enable the DHCP
server again.
To configure LAN IP settings:
1.
Type
in the address field of your web browser.
A login screen displays.
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Advanced Settings
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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
2.
Enter the modem router user name and password.
The default user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The modem router main menu displays.
3.
In the main menu, under Advanced, select
LAN IP
.
The following screen displays:
4.
Specify these settings:
•
LAN IP Address
•
Subnet Mask
. The network number portion of an IP address. Unless you are
implementing subnetting, use 255.255.255.0 as the subnet mask.
•
DHCP Server
. The
Yes
radio button is selected by default so that the modem router
acts as a DHCP server, providing the TCP/IP configuration for all the computers
connected to it.
If you plan to assign IP addresses manually, or you have another DHCP server on
your network, select the
No
radio button.
•
Starting IP Address
and
Ending IP Address
. These fields specify the range in the IP
address pool.
•
Max Users
. The maximum number of users on the network.
•
DHCP Lease
. For more information, see
Reserve an IP Address for DHCP Use
on
page
69.
5.
Click the
Apply
button.
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Advanced Settings
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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
Reserve an IP Address for DHCP Use
To reserve an IP address for DHCP use, enter the DHCP server reservation settings for the
private LAN under DHCP Reservation Lease Info in the LAN IP screen.
To reserve an IP address for DHCP:
1.
Type
in the address field of your web browser.
A login screen displays.
2.
Enter the modem router user name and password.
The default user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The modem router main menu displays.
3.
In the main menu, under Advanced, select
LAN IP
.
The LAN IP screen displays.
4.
In the DHCP Reservation Lease Info section, enter the MAC address of the computer for
which you want to reserve an IP address.
5.
Enter the permanent IP address for the computer.
6.
Click the
Add
button.
Your changes are saved.
The MAC address and IP address are displayed in the DHCP Client Lease Info table. The
current system time is also displayed.
To delete an IP address from the DHCP Client Lease Info table:
1.
Type
in the address field of your web browser.
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Advanced Settings
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N450 WiFi Cable Modem Router Model N450/CG3000Dv2
A login screen displays.
2.
Enter the modem router user name and password.
The default user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
The modem router main menu displays.
3.
In the main menu, under Advanced, select
LAN IP
.
The LAN IP screen displays.
4.
In the DHCP Client Lease Info table, select the radio button for the MAC and IP address that
you want to remove.
5.
Click the
Delete
button.
The information for the selected MAC and IP address is removed from the DHCP Client
Lease Info table.
6.
To remove all information from the DHCP Client Lease Info table, click the
Clear DHCP
Leases
button.
LAN Switch
The modem router’s LAN interference is a 10/100/1GBASE-T Ethernet switch. The switch
ports are set to automatically negotiate speed and duplex communication with any connected
device. You might want to configure the port if the devices do not auto-negotiate correctly.
To configure the switch ports:
1.
Type
in the address field of your web browser.
19216811.live