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Page 41 / 101 Scroll up to view Page 36 - 40
Share a USB Drive Attached to the Modem Router
41
N600 WiFi Cable Modem Router Model C3700
4.
Select
ADVANCED > Advanced Setup > USB Settings
.
By default Enable any USB Device connection to the USB port radio is selected. This
setting lets you connect and access all your USB drives.
5.
Select the
No
radio button.
6.
Click the
Approved Devices
button.
The approved and available USB devices display.
7.
In the Available USB Devices list, select the drive that you want to approve.
8.
Click the
Add
button.
9.
Select the
Allow only approved devices
check box.
10.
Click the
Apply
button.
Your change takes effect.
11.
To work with another USB device, first click the
Safely Remove USB Device
button for the
currently connected USB device. Connect the other USB device, and repeat this process.
Page 42 / 101
Share a USB Drive Attached to the Modem Router
42
N600 WiFi Cable Modem Router Model C3700
Safely Remove a USB Drive
Before you physically disconnect a USB drive from the modem router USB port, log in to the
modem router and take the drive offline.
To remove a USB disk drive safely:
1.
Launch a web browser from a computer or wireless device that is connected to the
network.
2.
Type
http://routerlogin.net
or
.
A login screen displays.
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 screen displays.
4.
Select
USB Storage > Basic Settings
.
5.
Click the
Safely Remove USB Device
button.
This takes the drive offline.
6.
Physically disconnect the USB drive.
Page 43 / 101
43
6
6.
Specify Network Settings
This chapter includes the following sections:
•
View or Change the WAN Settings
•
Change the MTU Size
•
Set Up a Default DMZ Server
•
Change the Modem Router’s Device Name
•
Change the LAN TCP/IP Settings
•
Specify the IP Addresses That the Modem Router Assigns
•
Reserve LAN IP Addresses
•
Use the WPS Wizard for WiFi Connections
•
Specify Basic WiFi Settings
•
Change the WiFi Security Option
•
Set Up a WiFi Guest Network
•
Control the Wireless Radios
•
Specify WPS Settings
•
Set Up a Wireless Card Access List
•
Dynamic DNS
•
Improve Network Connections with Universal Plug and Play
Page 44 / 101
Specify Network Settings
44
N600 WiFi Cable Modem Router Model C3700
View or Change the WAN Settings
You can view the wide area network (WAN) settings for the Internet port. You can set up a
DMZ (demilitarized zone) server, change the maximum transmit unit (MTU) size, and enable
the modem router to respond to a ping to its WAN (Internet) port.
To view or change the WAN settings:
1.
Launch a web browser from a computer or wireless device that is connected to the
network.
2.
Type
http://routerlogin.net
or
.
A login screen displays.
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 screen displays.
4.
Select ADVANCED > Setup > WAN Setup
.
5.
View or change the following settings:
•
Disable IPv4 Firewall Protection
. The IPv4 firewall is enabled by default, which is
the recommended setting. Some advanced users might want to disable IPv4 firewall
protection to examine the traffic coming in from the Internet.
•
Disable Port Scan and DoS Protection
. DoS protection protects your LAN against
denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, and many
others. Select this check box only in special circumstances.
•
Default DMZ Server
. This feature is sometimes helpful when you are playing online
games or videoconferencing, but it makes the firewall security less effective. See
Set
Up a Default DMZ Server
on page
47.
•
Respond to Ping on Internet Port
. This feature allows your modem router to be
discovered. Use this feature only as a diagnostic tool or if you have a specific reason.
Page 45 / 101
Specify Network Settings
45
N600 WiFi Cable Modem Router Model C3700
•
Disable IGMP Proxying
. IGMP proxying allows a computer on the local area network
(LAN) to receive the multicast traffic it is interested in from the Internet. If you do not
need this feature, you can select this check box to disable it.
•
MTU Size (in bytes)
. The normal MTU (maximum transmit unit) value for most
Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. Change the
MTU only if you are sure that it is necessary for your ISP connection. See
Change the
MTU Size
on page
45.
•
Disable SIP ALG
. Some VoIP applications do not work well with the SIP ALG.
Selecting this check box to turn off the SIP ALG might help your VoIP devices to
create or accept a call through the modem router.
6.
Click the
Apply
button.
Your changes are saved.
Change the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
When one network device communicates across the Internet with another, the data packets
travel through many devices along the way. If a device in the data path has a lower MTU
setting than the other devices, the data packets must be split or “fragmented” to
accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often the default value. In some situations,
changing the value fixes one problem but causes another. Leave the MTU unchanged unless
one of these situations occurs:
•
You experience problems connecting to your ISP or other Internet service, and the
technical support of either the ISP or NETGEAR recommends changing the MTU setting.
These web-based applications might require an MTU change:
-
A secure website that does not open, or displays only part of a web page
-
Yahoo email
-
MSN portal
-
America Online’s DSL service
•
You use VPN and have severe performance problems.
•
You used a program to optimize MTU for performance reasons, and now you have
connectivity or performance problems.
Note:
An incorrect MTU setting can cause Internet communication
problems. For example, you might not be able to access certain
websites, frames within websites, secure login pages, or FTP or
POP servers.

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