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LTE Broadband 11n Wireless Router MBR1515



To configure your mobile broadband account access:

1.

Select

ADVANCED > Setup > Mobile Broadband Settings

to view the following

screen:

The following settings are provided:

•

User Name

. The account login user name.

•

Password

. The account password for authentication.

•

Country

. The country where mobile broadband service is provided.

•

Internet Service Provider

. The Internet service provider of the 4G network.

•

PIN code

. The PIN code of the SIM card if the PIN has been enabled.

•

Access Number

. The phone number of the remote site.

•

APN

. The access point name.

•

PDP Type

. The type of packet data protocol.

•

Connect automatically at startup

. When this check box is selected, the modem

automatically connects to the network when powered up. This check box should be

selected after login information is provided.

•

Reconnect automatically when connection is lost

. When this check box is

selected, the modem attempts to reconnect to the network when the connection is

lost. Under normal situations, this setting should be selected.

•

Roaming automatically

. When this check box is checked, the unit might roam to any

available operator in range and might incur roaming charges.

•

Wireless Button Configuration

. Choose whether you want the WPS button to

control WiFi only or both WiFi and wireless broadband.

•

Connection Status

. The status of the current WAN port.

2.

Click

Apply

to save your settings.

3.

Click

Connect

when you want to connect manually to the network.

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LTE Broadband 11n Wireless Router MBR1515

4.

Click

Disconnect

when you want to disconnect manually from the current network.

WAN Setup

The WAN Setup screen lets you configure a DMZ (demilitarized zone) server, change the

maximum transmit unit (MTU) size, and enable the router to respond to a ping on the WAN

(Internet) port. Select

ADVANCED > Setup > WAN Setup

to view the following screen:

•

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, Teardrop Attack,

UDP Flood, ARP Attack, Spoofing ICMP, Null Scan, and many others. This setting should

be disabled only in special circumstances.

•

Default DMZ Server

. This feature is sometimes helpful when you are playing online

games or videoconferencing. Be careful when using this feature because it makes the

firewall security less effective. See

Default DMZ Server

on page 33 for more details.

•

Respond to Ping on Internet Port

. If you want the router to respond to a ping from the

Internet, select this check box. Use this only as a diagnostic tool because it allows your

router to be discovered. Do not select this check box unless you have 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. For some ISPs, you might

need to reduce the MTU. This reduction is rarely required, and should not be done unless

you are sure that it is necessary for your ISP connection. See

Change the MTU Size

on

page 33.

•

NAT Filtering

. Network Address Translation (NAT) determines how the router processes

inbound traffic. Secured NAT provides a secured firewall to protect the computers on the

LAN from attacks from the Internet but might prevent some Internet games, point-to-point

applications, or multimedia applications from functioning. Open NAT provides a much

less secured firewall but allows almost all Internet applications to function.

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LTE Broadband 11n Wireless Router MBR1515

•

Disable SIP ALG

. Some VoIP applications do not work well with the SIP ALG. Selecting

this check box to turn off the SIP ALG helps your VoIP devices create and accept calls

through the router.

Default DMZ Server

The default DMZ server feature is helpful when you are using some online games and

videoconferencing applications that are incompatible with Network Address Translation

(NAT). The router is programmed to recognize some of these applications and to work

correctly with them, but other applications might not function well. In some cases, one local

computer can run the application correctly if that computer’s IP address is entered as the

default DMZ server.

WARNING:

DMZ servers pose a security risk. A computer designated as the

default DMZ server loses firewall protection from exploits on the

Internet. Once compromised, the DMZ server computer attacks

other computers on your network.

Incoming traffic from the Internet gets discarded by the router unless the traffic is a response

to one of your local computers or a service that you have configured in the Port

Forwarding/Port Triggering screen. Instead of discarding this traffic, you can have it

forwarded to one computer on your network. This computer is called the default DMZ server.



To set up a default DMZ server:

1.

On the WAN Setup screen, select the

Default DMZ Server

check box.

2.

Type the IP address.

3.

Click

Apply

.

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 any device in the data path has a lower MTU

setting than the other devices, the data packets have to be split or “fragmented” to

accommodate the device with the smallest MTU.

The best MTU setting for NETGEAR equipment is often just the default value, and changing

the value might fix one problem but cause another. Leave MTU unchanged unless one of

these situations occurs:

•

You have 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

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-

Yahoo email

-

MSN portal

-

America Online 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 causes Internet communication problems

such as the inability to access certain websites, frames within

websites, secure login pages, and FTP or POP servers.

If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are

willing to experiment, you can gradually reduce the MTU from the maximum value of 1500

until the problem goes away. The following table describes common MTU sizes and

applications.

Table 2.

Common MTU sizes

MTU

Application

1500

The largest Ethernet packet size and the default value. This value is the typical setting for

non-PPPoE, non-VPN connections and is the default value for NETGEAR routers,

adapters, and switches.

1492

Used in PPPoE environments.

1472

Maximum size to use for pinging. (Larger packets are fragmented.)

1468

Used in some DHCP environments.

1460

Usable by AOL if you do not have large email attachments, for example.

1436

Used in PPTP environments or with VPN.

1400

Maximum size for AOL DSL.

576

Typical value to connect to dial-up ISPs.



To change the MTU size:

1.

Select

ADVANCED > Setup > WAN Setup

.

2.

In the MTU Size field, enter a new size from 64 through 1500.

3.

Click

Apply

to save the settings.

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LAN Setup

The LAN Setup screen allows configuration of LAN IP services such as Dynamic Host

Configuration Protocol (DHCP) and Routing Information Protocol (RIP).

The router is shipped preconfigured to use private IP addresses on the LAN side and to act

as a DHCP server. The router’s default LAN IP configuration is:

•

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 should be 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 router while connected

through the browser, you are disconnected. You have to open a new

connection to the new IP address and log in again.



To change the LAN settings:

1.

Select

ADVANCED > Setup > LAN Setup

to display the following screen:

2.

Enter the settings that you want to customize. These settings are described in

LAN Setup

Screen Settings

on page 36.

3.

Click

Apply

to save your changes.