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12.1.4 Mobile Internet Connection

The Mobile Internet Connection method is suitable for USB modem mobile connections, such as 3G,

WiMAX, LTE, EVDO, EDGE, and GPRS. Currently, it only applies to

connections made via the Balance’s

USB mobile WAN port, except in the case of the Balance 30 LTE, which includes a built-in 4G LTE

modem. For a list of supported modems, please refer to Peplink Modem Support page at

.

Mobile Internet Connection Settings

Enable

Select

Yes

to enable the connection.

Connection

Type

This setting specifies the utilization of the WAN connection.

Always-on

results in the WAN

connection being used whenever it is available. If

Backup

is selected, the WAN connection is

treated as a backup connection and is used only in the absence of an available always-on WAN.

The default and recommended connection type is

Always-on

.

Standby State

This option allows you to choose whether to remain connected or disconnect when this WAN

connection is no longer in the highest priority and has entered the standby state. When

Remain

connected

is chosen and this WAN connection is made active, the WAN connection will be

immediately available for use.

Idle

Disconnect

With this option enabled, an idle connection will be disconnected after a specified period of time.

This time value specified is global and will affect all WAN profiles. The mobile connection will re-

establish on demand.

Reply to ICMP

Ping

If this field is disabled, the WAN connection will not respond to ICMP ping requests. By default,

this setting is

enabled

.

Operator

Settings

This setting applies to 3G/LTE/EDGE/GPRS modems only. It does not apply to EVDO/EVDO

Rev. A modems.

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Operator Settings

allows you to configure the APN settings of your connection. If

Auto

is

selected, the Peplink Balance will automatically detect the APN, configure the modem, and make

a connection. You may change the APN settings by selecting

Custom Mobile Operator

Settings

. The default and recommended

Operator Settings

value is

Auto

. The correct values

can be obtained from your mobile Internet service provider.

SIM PIN

(Optional)

This is an optional field which is only needed when there is SIM lock for your SIM card service.

DNS Servers

Each ISP may provide a set of DNS servers for DNS lookups. This field specifies the DNS

servers to be used when a DNS lookup is routed through this connection. You can input the ISP-

provided DNS server addresses into the

DNS server 1

and

DNS server 2

fields. If no address is

entered here, this link will not be used for DNS lookups.

Please refer to sections 12.3, 12.4, 12.5, and 12.6 for details about

WAN Health Check, Bandwidth

Allowance Monitor, Additional Public IP Settings,

and

Dynamic DNS Settings

.

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12.1.4.1

Modem Specific Custom Settings

The following settings may be available, depending on the modem model. The example below is for a 3G

modem.

Modem Specific Custom Settings

Modem Model

This field displays the manufacturer name of the connected mobile modem.

IMSI

This field shows the IMSI number associated with the SIM inside the mobile modem.

Network Type

This setting allows you to define your preference for using 3G and/or 2G networks. 3G

networks include HSPA/UMTS. 2G networks include EDGE/GPRS.

If

3G only

or

2G only

is chosen, only the HSPA/UMTS or EDGE/GPRS network will be

used, respectively. If the chosen network is not available, no other network will be

used, regardless of its availability. The modem connection will remain offline.

If

3G preferred

or

2G preferred

is chosen, the chosen network will be used when it is

available. If the chosen network is not available, the other network will be used

whenever available.

The default network type is

3G preferred

.

GSM Frequency

Band

This setting allows you to specify which GSM frequency band will be used.

GSM1900 is used in the United States, Canada, and many other countries in the

Americas.

GSM900 / GSM1800 / GSM2100 are used in Europe, the Middle East, Africa, Asia,

Oceania, and Brazil.

If

All Bands

is chosen, the appropriate frequency band will be used automatically.

The default GSM frequency band is

All Bands

.

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12.1.4.2

WiMAX Settings

If a WiMAX modem is present in the system, its settings user interface can be accessed at

Network>Interfaces>WAN>Mobile Internet

.

The example shown here relates to

Sprint’s

250U or 600U WiMAX modems.

Modem Specific Custom Settings

Modem Model

The brand of the modem is automatically detected and appears here.

ESN

The modem's electronic serial number (ESN) is also auto-detected and appears here.

Network Type

This is to specify the network type (e.g., 3G or 4G) to be used with the modem.

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12.2

Physical Interface Settings

Physical Interface Settings

Speed

This setting specifies port speed and duplex configurations of the WAN port. By default,

Auto

is selected and the appropriate data speed is automatically detected by the Peplink

Balance. In the event of negotiation issues, the port speed can be manually specified to

circumvent the issues. You can also choose whether or not to advertise the speed to the

peer by selecting the

Advertise Speed

checkbox.

MTU

This setting specifies the maximum transmission unit. By default, MTU is set to

Custom

1440

.You may adjust the MTU value by editing the text field. Click

Default

to restore the

default MTU value. Select

Auto

and the appropriate MTU value will be automatically

detected. The auto-detection will run each time the WAN connection establishes.

MSS

This setting should be configured based on the maximum payload size that the local system

can handle. The MSS (maximum segment size) is computed by taking the MTU and

subtracting40 bytes for TCP over IPv4.If MTU is set to

Auto

,

MSS

will also be set

automatically. By default,

MSS

is set to

Auto

.

MAC

Address

Clone

This setting allows you to configure the MAC address. Some service providers (e.g., cable

providers) identify the client’s MAC address and require the client to

always use the same

MAC address to connect to the network.

In such cases, change the WAN interface’s MAC

address to the original client PC’s

MAC address via this field. The default MAC address is a

unique value assigned at the factory. In most cases, the default value is sufficient. Clicking

the

Default

button restores the MAC address to the default value.

VLAN

Some service providers require the router to enable VLAN tagging for Internet traffic. If it is

required by your service provider, you can enable this field and enter the

VLAN ID

that the

provider requires.

Note: leave this field disabled if you are not sure.