Interfaces WideArea Networks(WANs)
IX20 User Guide
169
13. For APN list and APN list only, the IX20 device usesa preconfigured list of AccessPoint 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. Asa result, it is generally not
necessary to configure APNs. See Configure cellular modem APNs for further information and
instructionsfor setting an APN.
14. (Optional) To configure the IPaddressof a custom gateway or a custom netmask:
a. Click Custom gateway to expand.
b. Click Enable.
c. For Gateway/Netmask, enter the IPaddressand netmask of the custom gateway. To
override only the gateway netmask, but not the gateway IPaddress, use all zerosfor the IP
address. For example, 0.0.0.0./32 will use the network-provided gateway, but with a/32
netmask.
15. Optional IPv4 configuration items:
a. Click IPv4 to expand.
b. IPv4support is Enabled by default. Click to disable.
c. Set the Type.
n
Static IPaddress - Digi device obtains the static IPaddressfrom the cellular network.
n
DHCPaddress - Digi deviceobtains IPaddressthrough a DHCP server on the cellular
network.
a. Set the Metric.
See Configure WAN/WWAN priority and default route metrics for further information about
metrics.
b. For Weight, type the relativeweight for default routes associated with this interface. For
multiple active interfaceswith the same metric, Weight is used to load balance traffic to
the interfaces.
c. Set the Management priority. This determines which interface will have priority for
central management activity. The interface with the highest number will be used.
d. Set the MTU.
e. For Use DNS:
n
Always: DNSwill alwaysbe used for this WWAN; when multiple interfaceshavethe
same DNSserver, the interface with the lowest metric will be used for DNS
requests.
n
When primary default route: Only use the DNSservers provided for thisWWAN
when the WWAN is the primary route.
n
Never: Never use DNSservers for thisWWAN.
The default setting is When primary default route.
16. Optional IPv6 configuration items:
a. Click IPv6 to expand.
b. IPv6support is Enabled by default. Click to disable.
c. Set the Type.
n
Static IPaddress - Digi device obtains the static IPaddressfrom the cellular network.
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