Interfaces
Wide Area Networks (WANs)
LR54 User Guide
71
Default outbound WAN/WWAN ports
Wide Area Networks (WANs) and Wireless Wide Area Networks
(WWANs)
A Wide Area Network (WAN) provides connectivity to the internet or a remote network. A WAN
configuration consists of the following:
n
A physical device, such as an Ethernet device or a cellular modem.
n
Several networking parameters for the WAN, such as firewall configuration and IPv4 and IPv6
support.
n
Several parameters controlling failover.
Configure WAN/WWAN priority and default route metrics
The LR54 device is preconfigured with one Wide Area Network (WAN), named
WAN1
, and Wireless
Wide Area Network (WWAN), named
WWAN
. You can also create additional WANs and WWANs.
When a WAN is initialized, the LR54 device automatically adds a default IP route for the WAN. The
priority of the WAN is based on the metric of the default route, as configured in the WAN's IPv4 and
IPv6 metric settings.
Assigning priority to WANs
By default, the LR54 device's WAN (
WAN1
) is configured with the lowest metric (
1
), and is therefor the
highest priority WAN. By default, the Wireless WAN (
WWAN
) is configured with a metric of
3
, which
means it has a lower priority than
WAN1
. You can assign priority to WANs based 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 be lower than the metric of the WAN.
Example: Configure cellular connection as the primary WAN, and the Ethernet
connection as backup
Required configuration items
n
Configured WAN and WWAN interfaces. This example uses the preconfigured
WAN1
and
WWAN
interfaces.
n
The metric for each WAN.
Web
1. Log into Digi Remote Manager, or log into the local Web UI as a user with full Admin access
rights.
2. Access the device configuration:
Remote Manager:
a. Locate your device as described in