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Interfaces WideArea Networks(WANs)

IX20 User Guide

105

(config)> network interface my_wan surelink advanced interface_gateway

hostname/IP_address

(config)>

8. Save the configuration and apply the change

(config network interface my_wan ipv4 surelink)> save

Configuration saved.

9. 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.

Configure the device to reboot when a failure isdetected

Using SureLink, you can configure the IX20 device to reboot when it has determined that an interface

has failed.

Required configuration items

Enable SureLink.

By default, SureLink isenabled for the preconfigured WAN (ETH1) and WWAN (Modem). The

default configuration tests the DNSservers configured for the interface.

When SureLink is configured for Wireless WANs, SureLink tests are only run if the cellular

modem is connected and hasan IPaddress. Use the SIM failover optionsto configure the IX20

device to automatically recover the modem in the event that it cannot obtain an IPaddress.

See Configure a Wireless Wide Area Network (WWAN) for details about SIM failover.

Enable device reboot upon interface failure.

The type of tests to beperformed:

Ping test: Uses ICMPto determine connectivity. The default behavior isto ping the

interface gateway, which meansthat an initial traceroute issent to the hostname or IP

addressconfigured in the SureLink advanced settings, and then the first hop in that route

isused for the ping test.

DNS test: Performsa DNSquery to the named DNSserver.

HTTP test: UsesHTTP(s) GETrequests to determine connectivity to the configured web

server.

Test DNS servers configured for thisinterface: Tests communication with DNSservers

that are either provided by DHCP, or statically configured for this interface.

Test the interface status: Tests the current statusof the interface. Thetest fails if the

interface is down. Failing thistest infers that all other testsfail.

Custom test: Teststhe interface with custom commands.

TCP connection test: Tests that the interface can reach a destination port on the

configured host.

Test another interface's status: Tests the statusof another interface.

Digi IX20 User Manual

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