Change the server IP during program execution

Projects Programming
1

Hello, I come from the microcontroller programming pic, I'm in the arduino a few time.

I ask your kind help in this example I will be able to explain what I need.

Realize that the variable byte server is declared before the void setup () right? With the IP address, so far so good.

But I need to change this IP (it will be sent via tcp / ip and it is already running a C # application sending) but that is not the case now.

Well it gets the new IP that has to be changed, however in all the ways that I tried to change it .. it does not alter it just keeps looking for the start IP.

If I put the new address in void setp () or void loop () like this: byte server [] = {new address}; It does not update.

please help me!!

#include <Ethernet.h>
#include <SPI.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 10, 0, 0, 177 };
byte server[] = { 64, 233, 187, 99 }; // Google

EthernetClient client;

void setup()
{
  Ethernet.begin(mac, ip);
  Serial.begin(9600);

  delay(1000);

  Serial.println("connecting...");

  if (client.connect(server, 80)) {
    Serial.println("connected");
    client.println("GET /search?q=arduino HTTP/1.0");
    client.println();
  } else {
    Serial.println("connection failed");
  }
}

void loop()
{
/////At a given moment it receives the new ip and changes here below///
byte server[] = { new address }; ///It does not update .. keeps address declared there in the beginning

  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    for(;;)
      ;
  }
}
2

You cannot reassign an array. Instead you have to do this when you want to change the content:

server[0] = first part of ip;
server[1] = second part of ip;
server[2] = third part of ip;
server[3] = fourth part of ip;
3

cyber__creeper:
You cannot reassign an array. Instead you have to do this when you want to change the content:

server[0] = first part of ip;

server[1] = second part of ip;
server[2] = third part of ip;
server[3] = fourth part of ip;

Thank you very much, it worked.