every network interface webrtc exposes · local ips · vpn adapters · docker · virtual nets · ipv6 · mdns · runs locally
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- host — a real network interface on this device. one host candidate per ip per family.
- srflx — the stun server saw your packet arrive from this public ip:port. without a stun server you don’t see this.
- relay — only appears if a turn server is configured.
- mdns-obfuscated — modern chrome/firefox replace your private ip with a random
.localname unless the page already has camera/mic permission. - docker (172.17.x) — every container bridge shows up as a fully-routable interface.
- cgnat (100.64–127.x) — common with mobile carriers and tailscale-style overlays.
- link-local (169.254 / fe80::) — interfaces without a router, often virtual / dhcp-failed.