NatPunch - Should it work through gateway (firewall) with all clients on same PC?

[sondreb]

The sample included in the repo, "HolePunchServerTest", has a demonstration that does everything in one class (server/relay and two clients).

I'm attempting to separate this logic so I can run a gateway/relay and two individual clients.

While the sample runs fine with ":11" (localhost) as the master server endpoint for "SendNatIntroduceRequest", it doesn't appear to work well when I attempt to use my own public IP as the master server.

The firewall is open on the port, so that should be fine.

In the sample, I get the initial "NatIntroductionSuccess", but the c1.Connect(point, ConnectionKey); fails with this: PeerDisconnected: ConnectionFailed

So the question is two parts:

• Is this suppose to work when running all locally, meaning both the master/gateway/relay and the two clients?

• Is there other examples of NAT punch usage? I have searched GitHub and found a few, but nothing that appears to help me.

I have debugged this for a few days now and not been able to find a workable solution. My needs are:

Relay/Gateway that Clients connect to and exchange some messages.
Client can initiate UDP punch through to another Client connected to the relay.

Library version:
Latest NuGet and from source

Framework:
.NET Core 3 (acts same on .NET Framework)

OS:
Windows

[RevenantX]

This is possibly just duplicate of #366
Also if you really use port number 11 - use higher port than system reserved. https://en.wikipedia.org/wiki/Registered_port

[sondreb]

Thanks, was suppose to be "::1", the port is 15050 :-D