for(i = 1; i <= count; ++i){
		header.type = ICMP_ECHO;
		header.code = 0;
		header.checksum = 0;
		header.un.echo.sequence = htons(i);
		header.un.echo.id = htons(getpid() & 0xFFFF);
		header.checksum = in_cksum((unsigned short *)&header, 8, 0);
		send_icmp(sock, whereto, &header, &response);

		printf("%d bytes from : imp_sequence = %d,  time = %f ms \n", (int) sizeof(response), ntohs(response.header.un.echo.sequence), response.timeElapsed * 1000);
	}
}