Interfaces
Wide Area Networks (WANs)
TX54 User Guide
63
4. Set the metrics for
WAN1
:
a. Set the IPv4 metric for
WAN1
to
2
:
(config)> network interface wan1 ipv4 metric 2
(config)>
b. Set the IPv6 metric for
WAN1
to
1
:
(config)> network interface wan1 ipv6 metric 2
(config)>
5. Save the configuration and apply the change:
(config)> save
Configuration saved.
>
6. Type
exit
to exit the Admin CLI.
Depending on your device configuration, you may be presented with an
Access selection
menu
. Type
quit
to disconnect from the device.
The TX54 device is now configured to use the cellular modem WWAN,
WWAN
or
WWAN1
, as its highest
priority WAN, and its Ethernet WAN,
WAN1
, as its secondary WAN.
WAN/WWAN failover
If a connection to a WAN interface is lost for any reason, the TX54 device will immediately fail over to
the next WAN or WWAN interface, based on WAN priority. See
Configure WAN/WWAN priority and
for more information about WAN priority.
Active vs. passive failure detection
There are two ways to detect WAN or WWAN failure: active detection and passive detection.
n
Active detection uses Digi SureLink
TM
technology to send probe tests to a target host or to test
the status of the interface. The WAN/WWAN is considered to be down if there are no responses
for a configured amount of time. See
Configure SureLink active recovery to detect WAN/WWAN
for more information about active failure detection.
n
Passive detection involves detecting the WAN going down by monitoring its link status by some
means other than active detection. For example, if an Ethernet cable is disconnected or the
state of a cellular interface changes from
on
to
off
, the WAN is down.
Default Digi SureLink configuration
Beginning with firmware version 20.2.
x
, Surelink is enabled by default for IPv4 on all WAN and WWAN
interfaces, and is configured to perform two tests on these interfaces:
n
Interface connectivity.
n
DNS query to the DNS servers for interface's the network connection.
DNS servers are typically received as part of the interface's DHCP client connection, although
you can manually configure the DNS servers that will be used by SureLink.
Summary of Contents for TX54
Page 1: ...TX54 User Guide Firmware version 22 2 ...
Page 190: ...Interfaces Bridging TX54 User Guide 190 ...
Page 293: ...Hotspot Hotspot configuration TX54 User Guide 293 ...
Page 332: ...Hotspot Show hotspot status and statistics TX54 User Guide 332 ...
Page 584: ...Services Simple Network Management Protocol SNMP TX54 User Guide 584 4 Click Download ...