UDP

The UDP probe transmits minimal UDP payloads (header only) to reachability test a specific port. It records any UDP response that carries our source port (54321).

rmap scan --path targets.txt udp --port 161 \
  --pps 800 --output-file udp.csv --columns target,port,alias

Configuration

• --port <u16> – destination port to test (default 53).

Tags emitted

• port – the responder’s source port (usually the service we probed).
• alias / alias_prefix – dealiaser verdict.

Consider pairing this probe with protocol-specific modules (DNS or NTP) when you need richer payload semantics.