Supports connecting to multiple devices using the same UDP port 2222

[kenghuaku]

I understand that different devices can operate by separating them with UDP ports, and I have tested it. However, some poorly implemented devices or adapters might not accept ports other than '2222'. I have tried connecting to multiple PLCs, and they all use the port 2222, they probably distinguish which device's packet it is after receiving it, as shown in the following screenshot:

PLC: 10.10.11.16
Device1: 10.10.11.72
Device2: 10.10.11.73

[gisellevonbingen]

This is not possible with ENIPSimpleClient. It's a really simple class to test ENIP,
If you use multiple devices as one port, you need to write a new UDPServer class...
For now, i dont' have any plan to implement it in this project.

[gisellevonbingen]

UDPClient is no tell Identification.
Only return IPEndPoint.

Giselle.Net.EtherNetIP/Giselle.Net.EtherNetIP/ENIP/ENIPSimpleClient.cs

Lines 193 to 194 in 940f8dd

	var remoteEP = new IPEndPoint(IPAddress.Any, 0);
	var bytes = udpClient.Receive(ref remoteEP);

So.,..The only way to distinguish them is seems to be the IPAddress.