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Add support for multiple NICs and specifying which local IP to bind the server to. #20

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Add support for multiple NICs and specifying which local IP to bind the server to. #20

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ee4af56
Add optional local IP binding
PhonicUK May 13, 2021
e2d4579
Add custom local IP to KCPTransport
PhonicUK May 13, 2021
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3 changes: 2 additions & 1 deletion kcp2k/Assets/kcp2k/MirrorTransport/KcpTransport.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ public class KcpTransport : Transport
// common
[Header("Transport Configuration")]
public ushort Port = 7777;
public IPAddress LocalIP = IPAddress.IPv6Any;
[Tooltip("NoDelay is recommended to reduce latency. This also scales better without buffers getting full.")]
public bool NoDelay = true;
[Tooltip("KCP internal update interval. 100ms is KCP default, but a lower interval is recommended to minimize latency and to scale to more networked entities.")]
Expand Down Expand Up @@ -148,7 +149,7 @@ public override Uri ServerUri()
return builder.Uri;
}
public override bool ServerActive() => server.IsActive();
public override void ServerStart() => server.Start(Port);
public override void ServerStart() => server.Start(Port, LocalIP);
public override void ServerSend(int connectionId, int channelId, ArraySegment<byte> segment)
{
// switch to kcp channel.
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4 changes: 2 additions & 2 deletions kcp2k/Assets/kcp2k/highlevel/KcpServer.cs
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Expand Up @@ -78,7 +78,7 @@ public KcpServer(Action<int> OnConnected,

public bool IsActive() => socket != null;

public void Start(ushort port)
public void Start(ushort port, IPAddress address = null)
{
// only start once
if (socket != null)
Expand All @@ -94,7 +94,7 @@ public void Start(ushort port)
#else
socket = new Socket(AddressFamily.InterNetworkV6, SocketType.Dgram, ProtocolType.Udp);
socket.DualMode = true;
socket.Bind(new IPEndPoint(IPAddress.IPv6Any, port));
socket.Bind(new IPEndPoint(address ?? IPAddress.IPv6Any, port));
#endif
}

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