Blink LED on every UDP packet

gistfile1.c

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

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

unsigned int localPort = 8888;    

char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; 

EthernetUDP Udp;

void setup() {
  // start the Ethernet and UDP:
  Ethernet.begin(mac,ip);
  Udp.begin(localPort);

  Serial.begin(9600);
  
  pinMode(7, OUTPUT);
}

void loop() {
  int bytesAvailable = Udp.parsePacket();

  if( bytesAvailable )
  {
      digitalWrite(7, HIGH);
      delay(100);
      digitalWrite(7, LOW);
      
    Udp.read(packetBuffer, UDP_TX_PACKET_MAX_SIZE);
  }
  
  delay(10);
}