ICMP
Master ICMP operations
Allow controlled diagnostics while filtering floods and spoofed traffic.
- Default port
- ICMP
- Protocol
- ICMP
- Primary use
- Network diagnostics
Why ICMP matters
Ping and traceroute rely on ICMP; treat exposure as part of monitoring strategy.
Immediate actions
Whitelist probes and rate limits to separate observability from attacks.
Operational guardrails
Correlate ICMP latency with TCP/UDP metrics to pinpoint network incidents.