Unity : Error when trying to connect to Nat server.

[Bradsama]

So my script is identical to setting up a client to connect to a Nat Punch server. But each time I start the project with the script attached to a gameobject I keep getting this error.

[S]System.Net.Sockets.SocketException (0x80004005): The system detected an invalid pointer address in attempting to use a pointer argument in a call.

UnityEngine.Debug:Log (object) LiteNetLib.NetDebug:WriteLogic (LiteNetLib.NetLogLevel,string,object[]) (at Assets/LiteNetLib/NetDebug.cs:51) LiteNetLib.NetDebug:WriteError (string,object[]) (at Assets/LiteNetLib/NetDebug.cs:89) LiteNetLib.NetSocket:SendTo (byte[],int,int,System.Net.IPEndPoint,System.Net.Sockets.SocketError&) (at Assets/LiteNetLib/NetSocket.cs:507) LiteNetLib.NatPunchModule:Send<LiteNetLib.NatPunchModule/NatIntroduceRequestPacket> (LiteNetLib.NatPunchModule/NatIntroduceRequestPacket,System.Net.IPEndPoint) (at Assets/LiteNetLib/NatPunchModule.cs:116) LiteNetLib.NatPunchModule:SendNatIntroduceRequest (System.Net.IPEndPoint,string) (at Assets/LiteNetLib/NatPunchModule.cs:181) LiteNetLib.NatPunchModule:SendNatIntroduceRequest (string,int,string) (at Assets/LiteNetLib/NatPunchModule.cs:169) NatClient:Start () (at Assets/NatClient.cs:29)

The line it's pointing to is this using my dns host name from duckdns and set to my servers ip.

client.NatPunchModule.SendNatIntroduceRequest("trdm.duckdns.org", 8500, "token1");

Any idea on what to do to get this working?

[RevenantX]

@Bradsama maybe you trying resolve IPv6 address in IPv4 context or vice versa. Try resolve IP of "trdm.duckdns.org" in separate call using ResolveAddress(string hostStr, AddressFamily addressFamily) in NetUtils

[Bradsama]

Hmm well I have tried this even with the server on local using the loopback address and get this same error.

But I'll try using this within NetUtils.

[Bradsama]

Getting the same error message using this too. Works fine outside of Unity within a client program on it's own so I'm not sure what is going on.

[WarrenMondeville]

I solved the problem with this method,but I dont know why they dont support ipv6 in this mode.

    client = new NetManager(listener)
    {
        //IPv6Enabled = IPv6Mode.DualMode,
        NatPunchEnabled = true
    };