Interfaces Wide Area Networks (WANs)
Digi Connect IT® 16/48 User Guide
105
n If IMSI is selected, for Match IMSI, type the International Mobile Subscriber Identity
(IMSI) that must be in active for this WWAN to be used.
n If ICCID is selected, for Match ICCID, type the unique SIMcard ICCIDthat must be
in active for this WWAN to be used.
b. Type the PIN for the SIM. Leave blank if no PIN is required.
c. Type the Phone number for the SIM, for SMS connections.
Normally, this should be left blank. It is only necessary to complete this field if the SIM does
not have a phone number or if the phone number is incorrect.
d. Roaming is enabled by default. Click to disable.
e. For Use DNS:
n Always: DNS will always be used for this WWAN; when multiple interfaces have the
same DNS server, the interface with the lowest metric will be used for DNS
requests.
n When primary default route: Only use the DNS servers provided for this WWAN
when the WWAN is the primary route.
n Never: Never use DNS servers for this WWAN.
The default setting is When primary default route.
f. SIM failover is enabled by default, which means that the modem will automatically fail
over from the active SIM to the next available SIM when the active SIM fails to connect. If
enabled:
i. For Connection attempts before SIMfailover, type the number of times that the
device should attempt to connect to the active SIM before failing over to the next
available SIM.
ii. For SIM failover alternative, configure how SIM failover will function if automatic SIM
switching is unavailable:
n None: The device will perform no alternative action if automatic SIM switching
is unavailable.
n Reset modem: The device will reset the modem if automatic SIM switching is
unavailable.
n Reboot device: The device will reboot if automatic SIM switching is
unavailable.
9. For APN list and APN list only, the Connect IT 16/48 device uses a preconfigured list of Access
Point Names (APNs) when attempting to connect to a cellular carrier for the first time. After
the device has successfully connected, it will remember the correct APN. As a result, it is
generally not necessary to configure APNs. See Configure cellular modem APNs for further
information and instructions for setting an APN.
10. (Optional) To configure the IP address of a custom gateway or a custom netmask:
a. Click Custom gateway to expand.
b. Click Enable.
c. For Gateway/Netmask, enter the IP address and netmask of the custom gateway. To
override only the gateway netmask, but not the gateway IP address, use all zeros for the
IP address. For example, 0.0.0.0./32 will use the network-provided gateway, but with a
/32 netmask.
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