Ethernet2 library: get all clients of EthernetServer

Projects Programming
1

Hello

I am working with an arduino Mega with an Ethernet Shield.

Here is a very basic sketch:

#include <Ethernet2.h>

byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(192, 168, 0, 177);
IPAddress gateway(192, 168, 0, 254);
IPAddress subnet(255, 255, 255, 0);

EthernetServer server(2000);

void setup() 
{
    Ethernet.begin(mac, ip, gateway, subnet);
    server.begin();
    Serial.println(Ethernet.localIP());
}

int cpt=0;

void loop()
{
    cpt ++;
    if (cpt>10)
    {
        server.println("notification" + String(random(1,100)));
        cpt=0;
    }
    delay(200);
}

I am trying to connect multiple clients (from a PC with telnet command) to this arduino. This works great: Each clients receive a notification message each 2 seconds.
What i want to do is to get a "list" of all connected clients. There is no "clients" property on server object.
So my question is: How can i get a list of connected clients ?

And second question: This sample code is taken from an example program: the mac address is not the real mac address of my hardware component. Is there a way for the sketch to ask real mac address instead of hard coding it ?

Thanks

2

testpresta2:
And second question: This sample code is taken from an example program: the mac address is not the real mac address of my hardware component. Is there a way for the sketch to ask real mac address instead of hard coding it ?

Only if you mean "ask a human to type it in". There is no copy of the MAC address in hardware that can be queried.