Digi Connect IT 4 User Manual page 109

Interfaces
If auto, chap, or pap is selected, enter the Username and Password required to authenticate:
(config)> network interface modem modem apn 0 username name
(config)> network interface modem modem apn 0 password pwd
(config)>
The default is none.
7. Disable AT&T lightweight M2M if you are using an AT&T SIM that does not support AT&T
lightweight M2M:
(config)> network interface modem modem apn 0 attm2mglobal false
(config)>
8.
9. (Optional) To configure the device to bypass its preconfigured APN list and only use the
configured APNs:
(config)> network interface modem modem apn_lock true
(config)>
10. Save the configuration and apply the change:
(config)> save
Configuration saved.
>
11. Type exit to exit the Admin CLI.
Depending on your device configuration, you may be presented with an Access selection
menu. Type quit to disconnect from the device.
Configure dual APNs
Some cellular carriers offer a dual APN feature that allows a SIM card to be provisioned with two
separate APNs that can be used simultaneously. For example, Verizon offers this service as its Split
Data Routing feature. This feature provides two separate networking paths through a single cellular
modem and SIM card, and allows for configurations such as:
Segregating public and private traffic, including policy-based routes to ensure that your
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internal network traffic always goes through the private connection.
Separation of untrusted Internet traffic from trusted internal network traffic.
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Secure connection to internal customer network without using a VPN.
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Separate billing structures for public and private traffic.
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Site-to-site networking, without the overhead of tunneling for each device.
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In the following example configuration, all traffic on LAN1 is routed through the public APN to the
internet, and all traffic on LAN2 is routed through the private APN to the customer's data center:
To accomplish this, we will create separate WWAN interfaces that use the same modem but use
different APNs, and then use routing roles to forward traffic to the appropriate WWAN interface.
Note Dual-APN connections with the Telit LE910-NAv2 module when using a Verizon SIM are not
supported. Using an AT&T SIM with the Telit LE910-NAv2 module is supported. The Telit LE910-NAv2
module is used in the 1002-CM04 CORE modem.
Digi Connect IT® 4 User Guide
Wide Area Networks (WANs)
109