Digi TransPort WR21 - Page 229

Configuring network interfaces Configure mobile (cellular) interfaces
Digi TransPort® Routers User Guide
229
Configure mobile network settings
Command Instance Parameter Values Equivalent web parameter
ppp 1 do_nat 1 Enable NAT on this interface
IP Address
ppp 1 do_nat 2 Enable NAT on this interface
IP Address and Port
ppp 1 ipsec 1 Enable IPsec on this interface
ppp 1 ipsec 2 Keep Security Associations (SAs)
when this Mobile interface is
disconnected
ppp 1 ipsecent blank,ETH,PPP Use interface X, Y for the source IP
address of IPsec packets
x=Interface type
ppp 1 ipsecadd 0-255 Use interface X, Y for the source IP
address of IPsec packets
y=interface number
ppp 1 firewall off, on Enable the firewall on this interface
Automatic APN selection
Certain variants of Digi TransPort routers include support for automatically selecting an Access Point
Name (APN). This functionality is only available for routers with the following cellular module types:
n SIERRA_LTE
n TELIT_LTE
n TELIT_LTE_V2
To determine the APN, the router uses an IMSI to APN assignments file, imsi.txt. The imsi.txt file
maps ICCID and IMSI prefixes to APN values. For more information about updating and editing the
imsi.txt file, see imsi.txt.
Getting Started Wizard
Automatic APN selection is initially configured in the Getting Started Wizard on the Cellular
connectivity page, by using the Allow automatic APN detection? option. If the router detects a
supported cellular module and can determine the APN, this option will default to Yes. This will set the
APN name to None, which allows the router to automatically detect the name.
Web UI
The Mobile Settings page of the Web UI (Configuration > Network > Interfaces > Mobile > Mobile
Settings) includes the Select APN automatically checkbox. This checkbox is automatically enabled if
APN detection was enabled in the Getting Started Wizard.
If automatic APN selection is enabled in either the Getting Started Wizard or the Web UI, but the
router cannot determine the APN, the APN will be set to None.