Run a probe

The probe is research tooling, not a production service. A signed public probe kit is not published yet; do not run a binary from an unofficial mirror.

When the kit is published, this page will provide a signed Linux x86_64/aarch64 archive and Termux instructions, with no root and no inbound port requirement. It will use nat-probe/2 against a two-address, two-port server and emit a redacted local result. Record the mapping, filtering and class result; do not call it a measurement until the peers and environment meet the method note. Do not send us a key or address.