Prospective Extra Networking Features #138
Description
This is a holding-pattern issue that collects some info about various features, and when they can/can't be available.
| Feature | Windows | macOS | Linux |
|---|---|---|---|
| mDNS | ✅ | ✅ | ✅ |
| General Multicast | 📦 | ❌1 | 📦 |
✅: Supported
📦: Only with embedded wireguard
❌: Not supported
mDNS can be done by just listening to the local 5353 port. It would require some query transformations, but it works. With TAP interfaces, this would just pass through the raw packets, as they should be correct.
General Multicast needs to be done via TAP interfaces, to capture broadcast packets. macOS does not have in-kernel support for user-defined TAP interfaces, and adding kernel extensions is an arduous task.