Interfaces WideArea Networks(WANs)
IX20 User Guide
84
Wide Area Networks (WANs) and Wireless Wide Area Networks
(WWANs)
AWide Area Network (WAN) provides connectivity to the internet or a remote network. AWAN
configuration consists of the following:
n
Aphysical device, such as an Ethernet device or a cellular modem.
n
Several networking parameters for the WAN, such asfirewall configuration and IPv4 and IPv6
support.
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Several parameters controlling failover.
Configure WAN/WWAN priority and default route metrics
The IX20 device is preconfigured with one Wide Area Network (WAN), named ETH1, and one Wireless
Wide Area Network (WWAN), named Modem. You can also create additional WANs and WWANs.
When a WAN is initialized, the IX20 device automatically addsa default IProute for the WAN. The
priority of the WAN is based on the metric of the default route, as configured in the WAN's IPv4and
IPv6 metric settings.
Assigning priority to WANs
By default, the IX20 device's WAN (ETH1) is configured with the lowest metric (1), and istherefor the
highest priority WAN. By default, the WirelessWAN (Modem) isconfigured with a metric of 3, which
meansit hasa lower priority than ETH1. You can assign priority to WANsbased on the behavior you
want to implement for primary and backup WAN interfaces. For example, if you want a cellular
connection to be your primary WAN, with an Ethernet interface as backup, configure the metric of the
WWAN to belower than the metric of the WAN.
Example: Configure cellular connection asthe primary WAN, and the Ethernet
connection asbackup
Required configuration items
n
Configured WAN and WWAN interfaces. This example usesthe preconfigured ETH1 and Modem
interfaces.
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The metric for each WAN.
Web
1. Log into Digi Remote Manager, or log into the local Web UI asa user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in Use Digi Remote Manager to view and manage your
device.
b. Click the Device ID.
c. Click Settings.
d. Click to expand Config.
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