HIPswitch link monitoring

HIPswitches have a utility to monitor its underlay network interfaces and determine if one is available for us.

Internet Control Message Protocol (ICMP) is a prerequisite for link monitoring to validate a link.

By default, an HIPswitch will prefer wired underlay interfaces to cellular or Wi-Fi.

2.0.x and earlier

HIPswitches running firmware versions prior to 2.1.0 have a limited functionality link monitoring utility. If a wired underlay interface has an IP address and can successfully ping its targets, it will use that interface.

The default monitor targets for HIPswitches running firmware before 2.1.0 are:

  • Conductor

  • Default Gateway

  • DNS Servers

  • Underlay IP addresses of all HIPswitch peers

If all of these targets fail, the HIPswitch will switch to its secondary network interface (cellular or Wi-Fi).

2.1.x and later

Starting in v2.1.x, the HIPswitch now implements a smart, configurable link monitor.

This new and improved link monitoring functions is fully configurable, allowing the following tunable options:

  • Custom ping destinations (Conductor enabled by default)

  • Ping rate (frequency), timeout, time to live (TTL), and failure count

  • Disabling ping monitors on active link