Share a USB Drive Attached to the Modem Router

41

AC1750 WiFi Cable Modem Router

The BASIC Home screen displays.

4.

Select

ADVANCED > Advanced Setup > USB Settings.

By default the Enable any USB Device connection to the USB port

Yes

radio button 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.

Share a USB Drive Attached to the Modem Router

42

AC1750 WiFi Cable Modem Router

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.

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

Specify Network Settings

44

AC1750 WiFi Cable Modem Router

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 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 for a specific reason.

•

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 Internet connection. See

Change

the MTU Size

on page

45.

Specify Network Settings

45

AC1750 WiFi Cable Modem Router

•

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 uses 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 the Internet, and the technical support of either

the Internet provider 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 experience severe performance problems.

•

You used a program to optimize MTU for performance reasons and now you are

experiencing 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.



To change the MTU size:

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.