This program scans the local network and discovers IPv6 hosts addresses. It needs to be executed as superuser to be able to listen on the required ports.

Used by ipv6ddns

Download the latest release for your architecture.

Ensure you have Go installed on your system. If not, follow the instructions on the official Go website to install it. Then:

go install github.com/miguelangel-nubla/ipv6disc

This may or may not work on your system. I was able to make it work with host networking and without ipv6:true in /etc/docker/daemon.json???. If you have experience and can help with ipv6 docker please let me know.

docker run -it --rm --network host gcr.io/miguelangel-nubla/ipv6disc -live

By default, it will output the discovered hosts as JSON messages to stdout. You can easily parse the output with jq.

⚠️ This utility needs to be executed as a superuser to be able to listen for IPv6 ICMP packets.

sudo ipv6disc | jq 'select(.msg == "host identified") | .ipv6,.iface'

Alternatively, using -live the data will be displayed on the screen in a human-readable form.

If you need to pause and select/copy data use screen, launch ipv6disc -live [...] and press Ctrl+a and then ESC to enter copy mode. Now you can use the mouse to copy text. When finished ESC again will continue updating.

• -log_level: Set the logging level (default: "info"). Available options: "debug", "info", "warn", "error", "fatal", "panic".
• -ttl: Set the time-to-live (TTL) for a discovered host entry in the table after it has been last seen (default: 4 hours).
• -live: Show the current state live on the terminal (default: false).

This project is licensed under Apache License 2.0

It uses libraries from the following projects:

• github.com/google/uuid - BSD 3-Clause License
• github.com/mdlayher/ndp - MIT License
• github.com/nsf/termbox-go - MIT License
• go.uber.org/zap - MIT License
• golang.org/x/net - BSD 3-Clause License