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ICMP monitors verify that a host is reachable by sending ping packets and measuring response time and packet loss. They’re the simplest form of availability monitoring — if the host doesn’t respond to pings, it’s likely down.
Define this in code. YAML format · Terraform

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When to use ICMP monitors

  • Infrastructure reachability — verify servers, routers, and network devices respond
  • Network latency tracking — measure round-trip time between regions and hosts
  • Baseline availability — simple up/down detection when HTTP or TCP isn’t applicable
  • Packet loss detection — identify network quality issues
Some hosts and firewalls block ICMP. If you can’t ping a host from your machine, ICMP monitoring won’t work for it. Use TCP or HTTP monitors instead.

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Quick example

devhelm monitors create \
  --name "Gateway" \
  --type ICMP \
  --host gateway.example.com \
  --frequency 60 \
  --regions us-east

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Next steps

Configuration

Host, packet count, timeout, and ICMP assertions.

Monitoring overview

Compare all six monitor types.