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Ethernet

remotePort()

Description

Returns the port of the host that sent the current incoming packet.

Syntax

client.remotePort()

Parameters

none

Returns

the port of the host that sent the current incoming packet (uint16_t).

Example

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

byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(10, 0, 0, 177);

// telnet defaults to port 23
EthernetServer server = EthernetServer(23);

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  // initialize the Ethernet device
  Ethernet.begin(mac, ip);

  // start listening for clients
  server.begin();
}

void loop() {
  // if an incoming client connects, there will be bytes available to read:
  EthernetClient client = server.available();
  if (client) {
    Serial.print("Remote port: ");
    Serial.println(client.remotePort());
    client.stop();
  }
}
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See also


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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.