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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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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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•
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.

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