diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/CMakeLists.txt b/PROJECTS/beginner/network-traffic-analyzer/cpp/CMakeLists.txt
new file mode 100644
index 00000000..f9070c3d
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/CMakeLists.txt
@@ -0,0 +1,48 @@
+cmake_minimum_required(VERSION 3.31)
+project(network-traffic-analyzer)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+link_libraries(pcap)
+
+find_package(Boost REQUIRED COMPONENTS program_options)
+add_executable(network-traffic-analyzer main.cpp
+        "include/capture/pcapCapture.hpp"
+        src/capture/pcapCapture.cpp
+        "include/cli/argsParse.hpp"
+        include/packet/packet.hpp
+        include/packet/IP.hpp
+        src/packet/IP.cpp
+        include/stats/protocolStats.hpp
+        src/stats/protocolStats.cpp
+        src/packet/packet.cpp
+        src/cli/argsParse.cpp
+        include/cli/filter.hpp
+        src/cli/filter.cpp
+        include/TUI/view.hpp
+        src/TUI/view.cpp
+)
+
+include(FetchContent)
+
+set(FETCHCONTENT_UPDATES_DISCONNECTED ON)
+set(FETCHCONTENT_QUIET OFF)
+
+FetchContent_Declare(ftxui
+        GIT_REPOSITORY https://github.com/arthursonzogni/ftxui.git
+        GIT_TAG        v5.0.0
+        GIT_PROGRESS   TRUE
+        GIT_SHALLOW    TRUE
+        EXCLUDE_FROM_ALL
+)
+FetchContent_MakeAvailable(ftxui)
+
+
+target_link_libraries(network-traffic-analyzer
+        Boost::program_options
+        ftxui::screen
+        ftxui::dom
+        ftxui::component
+)
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/README.md b/PROJECTS/beginner/network-traffic-analyzer/cpp/README.md
new file mode 100644
index 00000000..b0bd911f
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/README.md
@@ -0,0 +1,87 @@
+```ruby
+▄▄▄▄▄▄ ▄▄▄▄   ▄▄▄  ▄▄▄▄▄ ▄▄▄▄▄ ▄▄  ▄▄▄▄    ▄▄▄  ▄▄  ▄▄  ▄▄▄  ▄▄  ▄▄ ▄▄ ▄▄▄▄▄ ▄▄▄▄▄ ▄▄▄▄  
+  ██   ██▄█▄ ██▀██ ██▄▄  ██▄▄  ██ ██▀▀▀   ██▀██ ███▄██ ██▀██ ██  ▀███▀   ▄█▀ ██▄▄  ██▄█▄ 
+  ██   ██ ██ ██▀██ ██    ██    ██ ▀████   ██▀██ ██ ▀██ ██▀██ ██▄▄▄ █   ▄██▄▄ ██▄▄▄ ██ ██ 
+                                                                                         
+```
+
+>A high-performance CLI network analyzer built with libpcap for raw packet capture and FTXUI for a fully interactive terminal UI.
+The application captures packets directly from a network interface, parses protocol headers manually, aggregates statistics in real time
+
+---
+![Preview](example.png)
+
+> [!IMPORTANT]
+> Packet capture requires elevated privileges.
+
+Run with:
+
+```bash
+sudo ./network-traffic-analyzer
+```
+
+Or grant capabilities:
+
+```bash
+sudo setcap cap_net_raw,cap_net_admin=eip ./network-traffic-analyzer
+```
+
+---
+
+# Features
+1) ## Live Packet Capture
+- Capture traffic from a selected network interface
+- Support for BPF filters (e.g. tcp, port 80, udp)
+- Real-time processing using libpcap
+
+2) ## Real-Time Statistics Engine
+- Total packets & traffic volume
+- Transport protocol distribution (TCP / UDP / ICMP)
+- Application-level classification (port-based)
+- Top IP addresses
+- Top source > destination pairs
+
+3) ## Flexible Capture Modes
+- Live capture from selected network interface (-i, --interface)
+- Offline analysis from .pcap file (-r, --offline)
+- Packet count limit (-c)
+- Time limit for capture (-t)
+- Interface discovery (--interfaces) 
+
+> [!TIP]
+> For the complete list of CLI options, use:
+> `--help`
+
+# Technologies
+- C++20+
+- Boost::program_options
+- libpcap
+- FTXUI
+- CMake
+
+# Build
+```
+mkdir build && cd build
+cmake ..
+make
+```
+
+# Usage Example
+
+### Live capture on eth0
+```
+sudo ./network-traffic-analyzer -i eth0
+```
+### Capture 100 packets
+```
+sudo ./network-traffic-analyzer -i wlan0 -c 100
+```
+### Analyze offline pcap file
+```
+sudo ./network-traffic-analyzer --offline traffic.pcap
+```
+### Export results (json / csv)
+```
+sudo ./network-traffic-analyzer --json result.json --csv result.csv
+
+```
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/example.png b/PROJECTS/beginner/network-traffic-analyzer/cpp/example.png
new file mode 100644
index 00000000..0cc88ba0
Binary files /dev/null and b/PROJECTS/beginner/network-traffic-analyzer/cpp/example.png differ
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/TUI/view.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/TUI/view.hpp
new file mode 100644
index 00000000..29e78883
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/TUI/view.hpp
@@ -0,0 +1,40 @@
+#ifndef VIEW_HPP
+#define VIEW_HPP
+#include "../stats/protocolStats.hpp"
+#include <ftxui/dom/elements.hpp>
+
+class View {
+public:
+	ftxui::Element render(
+		const StatsSnapshot& data,
+		const std::string& interface,
+		const std::string& filter,
+		bool capture_finished,
+		std::chrono::seconds timer
+	);
+
+private:
+	ftxui::Element render_header(
+		const StatsSnapshot& data,
+		const std::string& interface,
+		const std::string& filter
+	);
+	ftxui::Element render_stats(const StatsSnapshot& data);
+
+	ftxui::Element render_transport(const StatsSnapshot& data);
+	ftxui::Element render_application(const StatsSnapshot& data);
+	ftxui::Element render_ip(const StatsSnapshot& data);
+	ftxui::Element render_pairs(const StatsSnapshot& data);
+	ftxui::Element render_bandwidth(const StatsSnapshot& data);
+	ftxui::Element render_packets(const StatsSnapshot& data);
+
+	ftxui::Element render_footer(
+		bool capture_finished,
+		std::chrono::seconds timer
+	);
+};
+
+
+
+
+#endif //VIEW_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/capture/pcapCapture.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/capture/pcapCapture.hpp
new file mode 100644
index 00000000..1320b558
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/capture/pcapCapture.hpp
@@ -0,0 +1,107 @@
+#ifndef PCAPCAPTURE_HPP
+#define PCAPCAPTURE_HPP
+
+#include <memory>
+#include <queue>
+#include <pcap/pcap.h>
+#include <thread>
+#include <deque>
+
+//include C libraries
+extern "C" {
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <netinet/tcp.h>
+#include <netinet/igmp.h>
+#define SNAP_LEN 1518
+}
+
+#include "../packet/IP.hpp"
+#include "../../include/stats/protocolStats.hpp"
+#include "../packet/packet.hpp"
+
+/**
+ * Packet capture engine based on libpcap
+ *
+ * Supports:
+ *  - Live capture from network interface
+ *  - Offline capture from .pcap file
+ *  - BPF filtering
+ *  - Separate capture thread (for live mode)
+ *
+ * Workflow:
+ *  initialize()      -> load interfaces
+ *  set_capabilities()-> configure capture parameters
+ *  start()           -> start live capture (threaded)
+ *  start_offline()   -> process file synchronously
+ *  stop()            -> stop capture and cleanup
+ */
+
+class PcapCapture {
+private:
+	/* libpcap error buffer */
+	char errbuf[PCAP_ERRBUF_SIZE];
+
+	/* filter expression (compiled before capture) */
+	std::string filter_exp = "";
+	/* compiled filter program (expression) */
+	struct bpf_program fp = {};
+	/* Active pcap handle */
+	pcap_t *handle = nullptr;
+
+	/* Network mask and IP */
+	bpf_u_int32 mask = 0;
+	bpf_u_int32 net = 0;
+
+	/* Number of packets to capture */
+	int num_packets = 0;
+
+	/* Linked list of available interfaces */
+	pcap_if_t *interfaces = nullptr;
+
+	/* Selected network interface */
+	std::string interface;
+	/**
+	 * Static wrapper required by C-style libpcap callback.
+	 *
+	 * Since libpcap expects a C function pointer,
+	 * we use a static function and forward the call
+	 * to the class instance.
+	*/
+	static void callback(u_char *args, const struct pcap_pkthdr *header, const u_char *packet);
+	// packet processing logic
+	void got_packet(const struct pcap_pkthdr *header, const u_char *packet);
+
+	/* Separate thread used for live capture */
+	std::thread thread;
+	std::atomic<bool> running{false};
+
+public:
+
+	void print_interfaces();
+
+	bool isRunning() {
+		return running;
+	}
+	void setRunning(bool running) {
+		this->running = running;
+	}
+	/* Pointer to statistics engine */
+	Stats* stats;
+
+	void set_capabilities(std::string& interface, int num_packets, std::string& filter_exp, int packets_limit, Stats* stats);
+	void initialize();
+
+
+	void start();
+	void start_offline(std::string fpath);
+	void stop();
+};
+
+
+#endif //PCAPCAPTURE_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/cli/argsParse.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/cli/argsParse.hpp
new file mode 100644
index 00000000..9795e854
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/cli/argsParse.hpp
@@ -0,0 +1,14 @@
+#ifndef ARGSPARSE_HPP
+#define ARGSPARSE_HPP
+#include <boost/program_options.hpp>
+
+namespace po = boost::program_options;
+struct argsParser {
+	po::options_description desc;
+	po::variables_map vm;
+	void print_help() const;
+
+	argsParser(int argc, char** argv);
+};
+
+#endif //ARGSPARSE_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/cli/filter.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/cli/filter.hpp
new file mode 100644
index 00000000..95c66e24
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/cli/filter.hpp
@@ -0,0 +1,26 @@
+#ifndef FILTER_HPP
+#define FILTER_HPP
+#include <string>
+#include <vector>
+
+enum filter_type {
+	PROTOCOL,
+	PORT,
+	IP_TYPE,
+	IP_SRC,
+	IP_DEST,
+	NONE
+};
+
+struct filter {
+	filter_type type;
+	std::string val;
+};
+
+
+filter parse(std::string str);
+std::string get_bpf_filter(std::vector<filter>& f);
+
+
+
+#endif //FILTER_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/packet/IP.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/packet/IP.hpp
new file mode 100644
index 00000000..c1a4860a
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/packet/IP.hpp
@@ -0,0 +1,91 @@
+#ifndef IP_HPP
+#define IP_HPP
+#include <string>
+#include <netinet/ip.h>
+#include <netinet/igmp.h>
+#include <netinet/ip6.h>
+#include "packet.hpp"
+
+/* virtual class for our IPv4, IPv6 classes */
+class IP_class {
+protected:
+	virtual void handle_tcp() = 0;
+	virtual void handle_udp() = 0;
+	virtual void handle_icmp() = 0;
+	virtual void handle_icmpv6() = 0;
+	virtual void handle_igmp() = 0;
+	uint16_t payload_len = 0;
+public:
+	//getters
+	virtual std::string get_source() = 0;
+	virtual std::string get_dest() = 0;
+	virtual uint16_t get_src_port() = 0;
+	virtual uint16_t get_dest_port() = 0;
+	virtual TransportProtocol get_protocol() = 0;
+
+	uint16_t get_payload_len();
+
+	const uint8_t* payload_ptr = nullptr;
+	const uint8_t* get_payload_ptr() const { return payload_ptr; }
+
+	virtual ~IP_class() = default;
+
+};
+/*** ip4 ***/
+class IPv4 : public IP_class {
+private:
+	const ip* ip_hdr = nullptr;
+	int ip_hdr_len = 0;
+	uint16_t src_port = 0;
+	uint16_t dest_port = 0;
+protected:
+	void handle_tcp() override;
+	void handle_udp() override;
+	void handle_icmp() override;
+	void handle_icmpv6() override;
+	void handle_igmp() override;
+
+public:
+	TransportProtocol get_protocol() override;
+	std::string get_source() override;
+	std::string get_dest() override;
+	uint16_t get_src_port() override;
+	uint16_t get_dest_port() override;
+
+	explicit IPv4(const u_char* data);
+};
+
+
+
+/*** ipv6 ***/
+class IPv6 : public IP_class{
+protected:
+	void handle_tcp() override;
+	void handle_udp() override;
+	void handle_icmp() override;
+	void handle_icmpv6() override;
+	void handle_igmp() override;
+private:
+	const ip6_hdr* ip_hdr = nullptr;
+	int ip_hdr_len = 40;
+
+	in6_addr ip_source;
+	in6_addr ip_dest;
+
+	uint16_t src_port;
+	uint16_t dest_port;
+
+	const uint8_t* ptr = nullptr;
+
+public:
+	explicit IPv6(const u_char* data);
+
+	TransportProtocol get_protocol() override;
+	std::string get_source() override;
+	std::string get_dest() override;
+	uint16_t get_src_port() override;
+	uint16_t get_dest_port() override;
+
+};
+
+#endif //IP_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/packet/packet.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/packet/packet.hpp
new file mode 100644
index 00000000..39e55bba
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/packet/packet.hpp
@@ -0,0 +1,59 @@
+#ifndef PACKET_HPP
+#define PACKET_HPP
+#include <cstdint>
+#include <utility>
+#include <string>
+enum IPVersion {
+	v4, v6,
+};
+
+enum class TransportProtocol {
+	TCP = 1,
+	UDP = 2,
+	ICMP = 3,
+	ICMP6 = 4,
+	IGMP = 5,
+	UNKNOWN = -1,
+};
+
+enum class ApplicationProtocol {
+	HTTP,
+	HTTPS,
+	DNS,
+	FTP,
+	SSH,
+	SMTP,
+	QUIC,
+	NTP,
+	UNKNOWN,
+};
+
+struct Packet {
+	IPVersion ip_version;
+	TransportProtocol transport_protocol;
+	ApplicationProtocol application_protocol;
+	//src address
+	std::string src;
+	//dest address
+	std::string dst;
+	uint16_t src_port;
+	uint16_t dst_port;
+
+	uint32_t total_len;
+	uint16_t payload_len;
+
+	const uint8_t* payload_ptr;
+
+	Packet(IPVersion version, TransportProtocol protocol, std::string src, std::string dst,
+	uint16_t src_port, uint16_t dst_port, uint32_t total_len, uint16_t payload, const uint8_t* payload_ptr) : ip_version(version), transport_protocol(protocol),
+	src(std::move(src)), dst(std::move(dst)), src_port(src_port), dst_port(dst_port), total_len(total_len), payload_len(payload),
+			payload_ptr(payload_ptr)
+	{
+		this->application_protocol = get_application_protocol();
+	}
+	Packet() {  }
+
+private:
+	ApplicationProtocol get_application_protocol();
+};
+#endif //PACKET_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/include/stats/protocolStats.hpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/stats/protocolStats.hpp
new file mode 100644
index 00000000..13e77383
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/include/stats/protocolStats.hpp
@@ -0,0 +1,120 @@
+#ifndef PROTOCOLSTATS_HPP
+#define PROTOCOLSTATS_HPP
+
+#include <chrono>
+#include <cstdint>
+#include "../packet/packet.hpp"
+#include <unordered_map>
+#include <filesystem>
+#include <fstream>
+#include <map>
+#include <queue>
+#include "ftxui/dom/elements.hpp"
+
+using namespace ftxui;
+struct protocolStats {
+	uint32_t packets = 0;
+	uint32_t bytes = 0;
+};
+
+struct trafficStats {
+	uint32_t total_packets = 0;
+	uint32_t total_bytes = 0;
+};
+
+struct IPStats {
+	uint32_t bytes_sent = 0;
+	uint32_t bytes_received = 0;
+
+	uint32_t packets_sent = 0;
+	uint32_t packets_received = 0;
+};
+
+struct BandwidthPoint {
+	double timestamp;
+	double bytes_per_sec;
+};
+
+struct StatsSnapshot {
+	std::vector<std::vector<std::string>> transport_rows;
+	std::vector<std::vector<std::string>> app_rows;
+	std::vector<std::vector<std::string>> rows;
+	std::vector<std::vector<std::string>> pairs_rows;
+	std::vector<std::vector<std::string>> packets_rows;
+
+	uint32_t total_p = 0, total_b = 0;
+	//bandwidth
+	std::vector<BandwidthPoint> bandwidth_history;
+	double bandwidth = 0;
+	mutable double max_bandwidth = 0;
+
+};
+
+
+/**
+ * @brief Thread-safe statistics engine.
+ *
+ * Responsible for:
+ *  - Aggregating packet statistics
+ *  - Maintaining protocol distributions
+ *  - Tracking IP traffic
+ *  - Calculating bandwidth
+ *  - Providing snapshot for UI rendering
+ *
+ * All write operations are protected by mutex.
+ */
+class Stats {
+private:
+	std::mutex mtx;
+
+	uint32_t last_b = 0;
+
+	std::chrono::steady_clock::time_point last_tick;
+
+
+	std::unordered_map<TransportProtocol, protocolStats> transport_map;
+	std::unordered_map<ApplicationProtocol, protocolStats> application_map;
+	std::unordered_map<std::string, IPStats> ip_map;
+
+	std::map<std::pair<std::string, std::string>, protocolStats> pairs;
+
+	std::deque<Packet> packets;
+	int limit_packets = 10;
+
+
+public:
+
+	void push(const Packet& p) {
+		std::lock_guard<std::mutex> lock(mtx);
+		if (packets.size() > static_cast<long unsigned int>(limit_packets)) {
+			packets.pop_front();
+		}
+		packets.push_back(p);
+	}
+
+	StatsSnapshot snapshot;
+	void update_bandwidth();
+	double smooth_value(size_t i, size_t start);
+	double smooth_bandwidth = 0.0;
+
+	void set_packets_limit(int limit) {
+		limit_packets = limit;
+	}
+
+	void add_packet(Packet &packet);
+
+	void update_transport_stats();
+	void update_application_stats();
+	void update_ip_stats(size_t limit);
+	void update_pairs(size_t limit = 10);
+	void update_packets();
+
+	void export_csv(const std::string& filename);
+	void export_json(const std::string& filename);
+
+	Stats();
+};
+
+
+
+#endif //PROTOCOLSTATS_HPP
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/main.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/main.cpp
new file mode 100644
index 00000000..7aa3910f
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/main.cpp
@@ -0,0 +1,153 @@
+#include "include/capture/pcapCapture.hpp"
+#include <iostream>
+#include <pcap/pcap.h>
+#include <boost/program_options.hpp>
+#include "include/cli/filter.hpp"
+#include <ftxui/component/screen_interactive.hpp>
+#include <ftxui/component/component.hpp>
+#include <ftxui/component/component_options.hpp>
+
+
+#include "include/cli/argsParse.hpp"
+#include "include/TUI/view.hpp"
+#define SNAP_LEN 1518
+
+int main(int argc, char **argv)
+{
+	/* initialize capture */
+	PcapCapture capture;
+	capture.initialize();
+
+	/* initialize stats */
+	Stats stats;
+
+	/* initializing the command line parser */
+	argsParser parser(argc, argv);
+
+	/* check helper flags */
+	if (parser.vm.contains("help")) {
+		parser.print_help();
+		return 0;
+	}
+	if (parser.vm.contains("interfaces")) {
+		capture.print_interfaces();
+		return 0;
+	}
+	/* take the arguments of the flags into variables */
+	std::string interface = parser.vm["interface"].as<std::string>();
+	int count = parser.vm["count"].as<int>();
+	int limit = parser.vm["limit"].as<int>();
+	int time = parser.vm["time"].as<int>();
+	std::string filterString = "";
+
+	/* get a filter, use vector for multiple  */
+	std::vector<filter> filters;
+	if (parser.vm.contains("filter")) {
+		auto& f = parser.vm["filter"].as<std::vector<std::string>>();
+		for (auto& x : f) {
+			filters.push_back(parse(x));
+			filterString += x + " ";
+		}
+	}
+	/* converting the filter to a pcap readable string */
+	std::string expression = get_bpf_filter(filters);
+
+	bool isOffline = parser.vm.contains("offline");
+
+	/* set the flags to capture engine */
+	capture.set_capabilities(interface, count, expression, limit, &stats);
+
+
+	std::atomic<bool> capture_finished = false;
+
+	/* if we capture packets offline, we read the file in full, then print the result */
+	if (isOffline) {
+
+        capture.start_offline(parser.vm["offline"].as<std::string>());
+
+        /* full recalculation of statistics after file processing */
+        stats.update_packets();
+        stats.update_application_stats();
+        stats.update_transport_stats();
+        stats.update_ip_stats(10);
+        stats.update_pairs();
+        stats.update_bandwidth();
+    }
+	/* otherwise start live capture */
+    else {
+        capture.start();
+    }
+
+    /* UI */
+    using namespace ftxui;
+    auto screen = ScreenInteractive::Fullscreen();
+	/* our class for UI */
+    View view;
+
+	/* timer */
+	std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();
+	std::chrono::seconds timer{0};
+
+    auto renderer = Renderer([&] {
+        auto snapshot = stats.snapshot;
+        return view.render(snapshot,
+                           interface,
+                           filterString,
+                           capture_finished,
+                           timer);
+    });
+
+    auto component = CatchEvent(renderer, [&](Event e) {
+        if (e == Event::Character('q') || e == Event::Escape) {
+            capture.stop();
+            screen.Exit();
+        }
+        return true;
+    });
+
+
+    std::thread updater;
+
+    if (!isOffline) {
+        updater = std::thread([&] {
+            while (capture.isRunning()) {
+
+                stats.update_packets();
+                stats.update_application_stats();
+                stats.update_transport_stats();
+                stats.update_ip_stats(10);
+                stats.update_pairs();
+                stats.update_bandwidth();
+
+                screen.PostEvent(Event::Custom);
+                std::this_thread::sleep_for(std::chrono::milliseconds(300));
+
+                auto current_time = std::chrono::steady_clock::now();
+                timer = std::chrono::duration_cast<std::chrono::seconds>(
+                        current_time - begin);
+
+                if (timer >= std::chrono::seconds(time))
+                    break;
+            }
+
+            capture_finished = true;
+            screen.PostEvent(Event::Custom);
+        });
+    }
+
+    screen.Loop(component);
+
+    if (updater.joinable())
+        updater.join();
+
+    /* check export flags */
+    if (parser.vm.contains("csv")) {
+        stats.export_csv(parser.vm["csv"].as<std::string>());
+    }
+    if (parser.vm.contains("json")) {
+        stats.export_json(parser.vm["json"].as<std::string>());
+    }
+
+    return 0;
+}
+
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/TUI/view.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/TUI/view.cpp
new file mode 100644
index 00000000..588734d9
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/TUI/view.cpp
@@ -0,0 +1,229 @@
+#include "../../include/TUI/view.hpp"
+#include "ftxui/dom/table.hpp"
+
+
+ftxui::Element View::render(const StatsSnapshot& data, const std::string& interface, const std::string& filter,
+						bool capture_finished, std::chrono::seconds timer) {
+	auto header = render_header(data, interface, filter);
+
+	auto transport_section =
+		hbox({
+			render_transport(data) | flex,
+			separator(),
+			render_application(data) | flex,
+			separator(),
+			render_pairs(data) | flex,
+		}) | border;
+
+	auto ip_section =
+		hbox({
+			render_ip(data)
+				| border
+				| size(HEIGHT, LESS_THAN, 10)
+				| frame
+				| vscroll_indicator,
+
+			render_bandwidth(data)
+				| border
+				| flex
+		});
+
+	auto left_panel =
+		vbox({
+			transport_section,
+			separator(),
+			ip_section,
+		}) | flex_grow;
+
+	auto right_panel =
+		render_packets(data)
+			| border
+			| size(WIDTH, EQUAL, 100)
+			| frame
+			| vscroll_indicator;
+
+	auto body =
+		hbox({
+			left_panel,
+			separator(),
+			right_panel,
+		}) | flex;
+
+	auto footer = render_footer(capture_finished, timer);
+
+	return vbox({
+		header,
+		separator(),
+		body,
+		separator(),
+		footer,
+	});
+}
+/**
+ * @brief Renders top header section.
+ *
+ * Displays:
+ *  - Application title
+ *  - Active interface
+ *  - Active filter
+ *  - Traffic summary
+ */
+ftxui::Element View::render_header(const StatsSnapshot& data, const std::string& interface, const std::string& filter) {
+	return hbox({
+			  vbox({
+				  text("Network Traffic Analyzer") | bold,
+				  text("Interface: " + interface),
+				  text("Filter: " + filter),
+			  }) | flex,
+			  separator(),
+			  render_stats(data) | flex,
+		  }) | border;
+}
+
+ftxui::Element View::render_stats(const StatsSnapshot& data) {
+	return vbox({
+		text("=== Traffic summary ===") | bold,
+		text("Total packets: " + std::to_string(data.total_p)),
+		text(std::format(
+			"Total bytes  : {:.2f} MB",
+			data.total_b / (1024.0 * 1024.0)
+		))
+	}) | flex;
+}
+
+
+ftxui::Element View::render_footer(bool capture_finished, std::chrono::seconds timer) {
+	return Element({
+		capture_finished
+			  ? text("Capture finished (" + std::format("{}", timer) + "). Press 'q' or Esc to exit.")
+					| bold | color(Color::Yellow) | center
+			  : text("time: " + std::format("{}", timer) + ". Press 'q' or Esc to exit.") | center
+					| size(HEIGHT, EQUAL, 1)
+	});
+
+}
+ftxui::Element View::render_transport(const StatsSnapshot& data) {
+	Table table(data.transport_rows);
+	table.SelectAll().Border(LIGHT);
+
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).SeparatorVertical(LIGHT);
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).Border(DOUBLE);
+
+	return vbox({
+		text("=== Transport protocols === ") | bold,
+		table.Render()
+	}) | flex;
+}
+ftxui::Element View::render_application(const StatsSnapshot& data) {
+	Table table(data.app_rows);
+	table.SelectAll().Border(LIGHT);
+
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).SeparatorVertical(LIGHT);
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).Border(DOUBLE);
+
+	return vbox({
+		text("=== Application protocols ===") | bold,
+		table.Render()
+	})  | flex;
+}
+ftxui::Element View::render_ip(const StatsSnapshot& data) {
+
+	Table table(data.rows);
+	table.SelectAll().Border(LIGHT);
+
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).SeparatorVertical(LIGHT);
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).Border(DOUBLE);
+
+	return vbox({
+		text("=== Top IP addresses ===") | bold,
+
+		table.Render()
+	}) | flex;
+}
+ftxui::Element View::render_pairs(const StatsSnapshot& data) {
+	Table table(data.pairs_rows);
+	table.SelectAll().Border(LIGHT);
+
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).SeparatorVertical(LIGHT);
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).Border(DOUBLE);
+
+	return vbox({
+		text("=== Top communication pairs ===") | bold,
+		table.Render()
+	}) | flex;
+}
+/**
+ * @brief Renders bandwidth graph.
+ *
+ * Displays last 50 samples.
+ * Scales dynamically based on max bandwidth.
+ */
+
+ftxui::Element View::render_bandwidth(const StatsSnapshot& data) {
+	using namespace ftxui;
+
+	GraphFunction fn = [this, data](int width, int height) {
+		std::vector<int> output(width, 0);
+
+		if (data.bandwidth_history.size() < 2)
+			return output;
+
+		size_t n = data.bandwidth_history.size();
+		size_t start = n > 50 ? n - 50 : 0;
+
+
+		double max_bw = 1.0;
+		for (size_t i = start; i < n; ++i)
+			max_bw = std::max(max_bw, data.bandwidth_history[i].bytes_per_sec);
+
+		for (int x = 0; x < width; ++x) {
+
+			double t = (double)x / (width - 1);
+
+
+			double idx_f = start + t * (n - start - 1);
+			size_t i0 = (size_t)idx_f;
+			size_t i1 = std::min(i0 + 1, n - 1);
+
+
+			double frac = idx_f - i0;
+			double bw =
+				data.bandwidth_history[i0].bytes_per_sec * (1.0 - frac) +
+				data.bandwidth_history[i1].bytes_per_sec * frac;
+
+			double v = bw / max_bw;
+			output[x] = static_cast<int>(v * (height - 1));
+		}
+
+		return output;
+	};
+	return vbox({
+		text(std::format(" Bandwidth: {:.2f} KB / max: {:.2f} KB", data.bandwidth, data.max_bandwidth)) | bold,
+		graph(fn)
+		| size(HEIGHT, EQUAL, 20) | size(WIDTH, EQUAL, 60)
+		| border
+		| color(Color::Green),
+}) ;
+}
+ftxui::Element View::render_packets(const StatsSnapshot& data) {
+	Table table(data.packets_rows);
+	table.SelectAll().Border(LIGHT);
+
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).SeparatorVertical(LIGHT);
+	table.SelectRow(0).Decorate(bold);
+	table.SelectRow(0).Border(DOUBLE);
+	return vbox({
+		text("=== Packets ===") | bold,
+
+		table.Render() | flex
+	}) | flex;
+}
\ No newline at end of file
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/capture/pcapCapture.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/capture/pcapCapture.cpp
new file mode 100644
index 00000000..c5ed7334
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/capture/pcapCapture.cpp
@@ -0,0 +1,206 @@
+#include "../../include/capture/pcapCapture.hpp"
+#include "../../include/stats/protocolStats.hpp"
+
+
+/* get a list of all available network interfaces */
+void PcapCapture::initialize() {
+	/*	find all devs available in network, save them to pcap_if_t struct (interfaces) */
+	if (pcap_findalldevs(&interfaces, errbuf) == -1) {
+		fprintf(stderr, "Error: pcap_findalldevs has been failed - %s\n", errbuf);
+	}
+}
+/**
+	 * Start live packet capture.
+	 *
+	 * Steps:
+	 *  1. Resolve network mask
+	 *  2. Open device in promiscuous mode
+	 *  3. Compile and apply BPF filter (if provided)
+	 *  4. Start pcap_loop in a separate thread
+	*/
+void PcapCapture::start() {
+	// getting the netmask of the interface
+	if (pcap_lookupnet(interface.c_str(), &net, &mask, errbuf) == -1) {
+		fprintf(stderr, "Couldn't get netmask for device %s: %s\n",
+			interface.c_str(), errbuf);
+		net = 0;
+		mask = 0;
+	}
+
+	/* open capture device */
+	handle = pcap_open_live(interface.c_str(), SNAP_LEN, 1, 1000, errbuf);
+	if (handle == nullptr) {
+		fprintf(stderr, "Couldn't open device %s: %s\n", interface.c_str(), errbuf);
+		exit(EXIT_FAILURE);
+	}
+
+	if (pcap_datalink(handle) != DLT_EN10MB) {
+		fprintf(stderr, "%s is not an Ethernet\n", interface.c_str());
+		exit(EXIT_FAILURE);
+	}
+	if (!filter_exp.empty()) {
+		/* compile the filter expression */
+		if (pcap_compile(handle, &fp, filter_exp.c_str(), 0, net) == -1) {
+			fprintf(stderr, "Couldn't parse filter %s: %s\n",
+				filter_exp.c_str(), pcap_geterr(handle));
+			exit(EXIT_FAILURE);
+		}
+
+
+		/* apply the compiled filter */
+		if (pcap_setfilter(handle, &fp) == -1) {
+			fprintf(stderr, "Couldn't install filter %s: %s\n",
+				filter_exp.c_str(), pcap_geterr(handle));
+			exit(EXIT_FAILURE);
+		}
+		pcap_freecode(&fp);
+	}
+
+
+
+	/* start a separate thread */
+	running = true;
+	thread = std::thread([this]() {
+		if (pcap_loop(handle, num_packets, &PcapCapture::callback, reinterpret_cast<u_char*>(this)) < 0) {
+			//fprintf(stderr, "Error in pcap_loop: %s\n", pcap_geterr(handle));
+			//pcap_close(handle);
+		}
+		running = false;
+	});
+	
+}
+
+void PcapCapture::stop() {
+	if (interfaces) {
+			pcap_freealldevs(interfaces);
+	}
+	if (handle) {
+		if (running == true) pcap_breakloop(handle);
+		pcap_close(handle);
+		//handle = nullptr;
+	}
+
+	if (thread.joinable()) {
+		thread.join();
+	}
+	/*if (!filter_exp.empty()) {
+		pcap_freecode(&fp);
+	}*/
+
+}
+/* print all available interfaces */
+void PcapCapture::print_interfaces() {
+	int i = 0;
+	for (pcap_if_t *dev = interfaces; dev; dev = dev->next) {
+		printf("%d. %s  ",++i,  dev->name);
+		if (dev->description) {
+			printf("(%s)\n", dev->description);
+		}
+		else {
+			printf("\n");
+		}
+	}
+}
+/**
+ * @brief Static wrapper required by libpcap C API.
+ *
+ * Since libpcap expects a C-style function pointer,
+ * we forward the call to the current class instance.
+ *
+ * @param user   Pointer to PcapCapture instance
+ * @param header Packet metadata
+ * @param packet Raw packet bytes
+ */
+void PcapCapture::callback(
+	u_char* user,
+	const struct pcap_pkthdr* header,
+	const u_char* packet
+) {
+	auto* self = reinterpret_cast<PcapCapture*>(user);
+	if (!self->isRunning()) return;
+	self->got_packet(header, packet);
+}
+
+/**
+ * @brief Parses a single captured packet.
+ *
+ * Responsibilities:
+ *  - Parse Ethernet header
+ *  - Detect IP version (IPv4 / IPv6)
+ *  - Extract transport & application protocols
+ *  - Construct Packet abstraction
+ *  - Forward packet to Stats engine
+ *
+ * Only IPv4 and IPv6 are currently processed.
+ * Other Ethernet types are ignored.
+ */
+void PcapCapture::got_packet(const struct pcap_pkthdr *header, const u_char *packet) {
+	if (!running) return;
+
+    // --- Ethernet header ---
+	const auto* ethernet = reinterpret_cast<const ether_header*>(packet);
+	uint16_t ether_type = ntohs(ethernet->ether_type);
+
+	Packet packetView;
+
+	/* if we have a ipv4 type */
+	if (ether_type == ETHERTYPE_IP) {
+		IPv4 ip(packet + sizeof(struct ether_header));
+		TransportProtocol prot = ip.get_protocol();
+
+		packetView = Packet(v4, prot, ip.get_source(), ip.get_dest(), ip.get_src_port(), ip.get_dest_port(), header->len, ip.get_payload_len(), ip.get_payload_ptr());
+		stats->add_packet(packetView);
+		stats->push(packetView);
+
+	}
+	/* ipv6 type */
+	if (ether_type == ETHERTYPE_IPV6) {
+		IPv6 ip(packet + sizeof(struct ether_header));
+		TransportProtocol prot = ip.get_protocol();
+		packetView = Packet(v6, prot, ip.get_source(), ip.get_dest(), ip.get_src_port(), ip.get_dest_port(), header->len, ip.get_payload_len(), ip.get_payload_ptr());
+		stats->add_packet(packetView);
+		stats->push(packetView);
+
+	}
+	if (ether_type == ETHERTYPE_VLAN) {
+		ethernet = (ether_header*)(packet + 4);
+
+	}
+	if (ether_type == ETHERTYPE_ARP) {
+
+	}
+}
+
+void PcapCapture::set_capabilities(std::string& interface, int num_packets, std::string& filter_exp, int packets_limit, Stats* stats) {
+	this->interface = interface;
+	this->num_packets = num_packets;
+	this->filter_exp = filter_exp;
+	this->stats = stats;
+	this->stats->set_packets_limit(packets_limit);
+
+}
+/**
+ * @brief Processes packets from an offline .pcap file.
+ *
+ * Differences from live mode:
+ *  - Runs synchronously
+ *  - No additional thread is created
+ *  - Blocks until entire file is processed
+ *
+ * Used for post-capture analysis and exporting results.
+ */
+void PcapCapture::start_offline(std::string fpath) {
+	handle = pcap_open_offline(fpath.c_str(), errbuf);
+	if (handle == nullptr) {
+		fprintf(stderr, "Error opening offline file: %s\n", errbuf);
+		return;
+	}
+
+	running = true;
+
+	pcap_loop(handle, num_packets,
+			  &PcapCapture::callback,
+			  reinterpret_cast<u_char*>(this));
+
+	running = false;
+}
\ No newline at end of file
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/cli/argsParse.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/cli/argsParse.cpp
new file mode 100644
index 00000000..3e10a120
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/cli/argsParse.cpp
@@ -0,0 +1,64 @@
+#include "../../include/cli/argsParse.hpp"
+#include <iostream>
+
+argsParser::argsParser(int argc, char** argv) {
+	desc.add_options()
+		("help,h", "Display this help message and exit")
+		("interfaces, interfaces","Display all possible interfaces")
+		("interface,i", po::value<std::string>()->default_value("wlan0"),
+			"Network interface to capture packets from (e.g. eth0, wlan0, any)")
+
+		("count,c", po::value<int>()->default_value(0),
+			"Number of packets to capture (0 = unlimited)")
+		("time, t", po::value<int>()->default_value(INT_MAX),"Working time (in seconds)")
+
+		("offline,r", po::value<std::string>(),
+			"Read packets from an offline pcap file")
+
+		("filter,f", po::value<std::vector<std::string>>()->composing(),
+			"Traffic filter (can be used multiple times)\n"
+			"  proto:<name>   tcp | udp | icmp | dns\n"
+			"  src:<ip>       Source IP address\n"
+			"  dst:<ip>       Destination IP address\n"
+			"  port:<number>  Source or destination port")
+
+		("sort,s", po::value<std::string>()->default_value("bytes"),
+			"Sort field: bytes | packets | ip")
+
+		("order,o", po::value<std::string>()->default_value("desc"),
+			"Sort order: asc | desc")
+
+		("limit,n", po::value<int>()->default_value(43),
+			"Limit number of displayed entries")
+
+		("csv", po::value<std::string>(),
+			"Export analysis results to CSV file")
+
+		("json", po::value<std::string>(),
+			"Export analysis results to JSON file");
+
+	po::store(po::parse_command_line(argc, argv, desc), vm);
+	po::notify(vm);
+}
+
+void argsParser::print_help() const {
+	std::cout <<
+		"Network Traffic Analyzer\n"
+		"========================\n\n"
+		"Usage:\n"
+		"  ./network-traffic-analyzer [options]\n\n"
+		"Description:\n"
+		"  Captures and analyzes network traffic from live interfaces or\n"
+		"  offline pcap files. Provides protocol statistics, top talkers,\n"
+		"  and bandwidth usage information.\n\n";
+
+	std::cout << desc << "\n";
+
+	std::cout <<
+		"Examples:\n"
+		"  ./network-traffic-analyzer -i wlan0 --count 100 --time 10\n"
+		"  ./network-traffic-analyzer -i any --filter port:54\n"
+		"  ./network-traffic-analyzer --offline traffic.pcap --json result.json\n\n";
+
+	std::cout << "To end the program, press 'q' or Esc to exit.\n";
+}
\ No newline at end of file
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/cli/filter.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/cli/filter.cpp
new file mode 100644
index 00000000..12dc1570
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/cli/filter.cpp
@@ -0,0 +1,77 @@
+#include "../../include/cli/filter.hpp"
+
+#include <map>
+
+filter parse(std::string str) {
+	auto pos = str.find(':');
+	if (pos == std::string::npos) {
+
+	}
+
+	std::string type = str.substr(0, pos);
+	std::string value = str.substr(pos + 1);
+
+	if (type == "protocol") return {PROTOCOL, value};
+	if (type == "port") return {PORT, value};
+	if (type == "dest") return {IP_DEST, value};
+	if (type == "src") return {IP_SRC, value};
+	if (type == "ip") return {IP_TYPE, value};
+	return {NONE, value};
+}
+
+std::string get_bpf_filter(std::vector<filter>& f) {
+	std::map<filter_type, std::vector<std::string>> groups;
+
+	for (const auto& x : f) {
+		switch (x.type) {
+			case PROTOCOL:
+				if (x.val == "dns")
+					groups[PROTOCOL].push_back("port 53");
+				else
+					groups[PROTOCOL].push_back(x.val);
+				break;
+
+			case IP_DEST:
+				groups[IP_DEST].push_back("dst host " + x.val);
+				break;
+
+			case IP_SRC:
+				groups[IP_SRC].push_back("src host " + x.val);
+				break;
+
+			case PORT:
+				groups[PORT].push_back("port " + x.val);
+				break;
+			case IP_TYPE:
+				groups[IP_TYPE].push_back(x.val);
+				break;
+
+			default:
+				break;
+		}
+	}
+
+	std::string result;
+	bool first_group = true;
+
+	for (auto& [type, parts] : groups) {
+		if (!first_group)
+			result += " and ";
+		first_group = false;
+
+		if (parts.size() > 1)
+			result += "(";
+
+		for (size_t i = 0; i < parts.size(); ++i) {
+			result += parts[i];
+			if (i + 1 < parts.size())
+				result += " or ";
+		}
+
+		if (parts.size() > 1)
+			result += ")";
+	}
+
+	return result;
+}
+
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/packet/IP.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/packet/IP.cpp
new file mode 100644
index 00000000..01e8164b
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/packet/IP.cpp
@@ -0,0 +1,211 @@
+#include "../../include/packet/IP.hpp"
+
+#include <cstdio>
+#include <arpa/inet.h>
+#include <netinet/icmp6.h>
+#include <netinet/ip_icmp.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+
+uint16_t IP_class::get_payload_len() {
+	return payload_len;
+}
+
+
+/*** Ipv4 ***/
+IPv4::IPv4(const u_char* data) {
+	ip_hdr = reinterpret_cast<const ip*>(data);
+	ip_hdr_len = ip_hdr->ip_hl * 4;
+	if (ip_hdr_len < 20) {
+		fprintf(stderr, "Failed to initial IPv4 ");
+	}
+
+
+}
+
+TransportProtocol IPv4::get_protocol() {
+
+	switch (ip_hdr->ip_p) {
+		case IPPROTO_TCP:
+			handle_tcp();
+			return TransportProtocol::TCP;
+
+		case IPPROTO_UDP:
+			handle_udp();
+			return TransportProtocol::UDP;
+
+		case IPPROTO_ICMP:
+			handle_icmp();
+			return TransportProtocol::ICMP;
+
+		case IPPROTO_ICMPV6:
+			handle_icmpv6();
+			return TransportProtocol::ICMP6;
+
+		case IPPROTO_IGMP:
+			handle_igmp();
+			return TransportProtocol::IGMP;
+
+		default:
+			return TransportProtocol::UNKNOWN;
+	}
+}
+void IPv4::handle_tcp() {
+	auto* tcp = reinterpret_cast<tcphdr*>((u_char*)ip_hdr + ip_hdr_len);
+
+	src_port = ntohs(tcp->source);
+	dest_port = ntohs(tcp->dest);
+
+	payload_ptr = reinterpret_cast<u_char*>(tcp + tcp->doff * 4);
+
+	payload_len = ntohs(ip_hdr->ip_len) - (ip_hdr_len + tcp->doff * 4);
+}
+void IPv4::handle_udp() {
+	auto* udp = reinterpret_cast<udphdr*>((u_char*)ip_hdr + ip_hdr_len);
+	dest_port = ntohs(udp->dest);
+	src_port = ntohs(udp->source);
+
+	payload_ptr = (u_char*)udp + sizeof(udphdr);
+	payload_len = ntohs(udp->len) - sizeof(udphdr);
+}
+void IPv4::handle_icmp() {
+	auto* icmp = reinterpret_cast<icmphdr*>((u_char*)ip_hdr + ip_hdr_len);
+
+
+}
+void IPv4::handle_icmpv6() {
+	auto* icmp = reinterpret_cast<icmp6_hdr*>((u_char*)ip_hdr + ip_hdr_len);
+
+}
+void IPv4::handle_igmp() {
+	auto* igmp = reinterpret_cast<struct igmp*>((u_char*)ip_hdr + ip_hdr_len);
+
+}
+
+std::string IPv4::get_source() {
+	return std::string(inet_ntoa(ip_hdr->ip_src));
+}
+std::string IPv4::get_dest() {
+	return std::string(inet_ntoa(ip_hdr->ip_dst));
+}
+uint16_t IPv4::get_src_port() {
+	return src_port;
+}
+uint16_t IPv4::get_dest_port() {
+	return dest_port;
+}
+
+/*** Ipv6 ***/
+
+IPv6::IPv6(const u_char* data) {
+	ip_hdr = reinterpret_cast<const ip6_hdr*>(data);
+
+}
+
+TransportProtocol IPv6::get_protocol() {
+	uint8_t hdr = ip_hdr->ip6_nxt;
+
+	ptr = reinterpret_cast<const uint8_t*>(ip_hdr + 1);
+	while (true) {
+		switch (hdr) {
+			case IPPROTO_TCP:
+				handle_tcp();
+				return TransportProtocol::TCP;
+
+			case IPPROTO_UDP:
+				handle_udp();
+				return TransportProtocol::UDP;
+
+			case IPPROTO_ICMP:
+				handle_icmp();
+				return TransportProtocol::ICMP;
+
+			case IPPROTO_ICMPV6:
+				handle_icmpv6();
+				return TransportProtocol::ICMP6;
+
+			case IPPROTO_IGMP:
+				handle_igmp();
+				return TransportProtocol::IGMP;
+				/* if we have an extension headers, dont leave from loop,
+				 * keep find a protocol type
+				 */
+			case IPPROTO_HOPOPTS:
+			case IPPROTO_ROUTING:
+			case IPPROTO_DSTOPTS: {
+				const auto* ext = reinterpret_cast<const ip6_ext*>(ptr);
+				hdr = ext->ip6e_nxt;
+				ptr += (ext->ip6e_len + 1) * 8;
+				break;
+			}
+			case IPPROTO_FRAGMENT: {
+
+				const auto* frag = reinterpret_cast<const ip6_frag*>(ptr);
+				hdr = frag->ip6f_nxt;
+				ptr += sizeof(ip6_frag);
+				break;
+			}
+			default:
+				return TransportProtocol::UNKNOWN;
+		}
+	}
+	ptr = nullptr;
+}
+
+void IPv6::handle_tcp() {
+	const auto tcp = reinterpret_cast<const tcphdr*>(ptr);
+	dest_port = ntohs(tcp->dest);
+	src_port = ntohs(tcp->source);
+
+	payload_ptr = (const uint8_t*)tcp + tcp->doff * 4;
+	payload_len = ntohs(ip_hdr->ip6_plen) - tcp->doff * 4;
+
+	ptr = nullptr;
+
+}
+void IPv6::handle_udp() {
+	const auto udp = reinterpret_cast<const udphdr*>(ptr);
+	dest_port = ntohs(udp->dest);
+	src_port = ntohs(udp->source);
+
+	payload_ptr = (const uint8_t*)udp + sizeof(udphdr);
+	payload_len = ntohs(udp->len) - sizeof(udphdr);
+
+	ptr = nullptr;
+
+}
+void IPv6::handle_icmp() {
+
+	ptr = nullptr;
+}
+void IPv6::handle_icmpv6() {
+	payload_len = ntohs(ip_hdr->ip6_plen) - sizeof(icmp6_hdr);
+	ptr = nullptr;
+}
+void IPv6::handle_igmp() {
+
+	ptr = nullptr;
+}
+
+std::string IPv6::get_source() {
+	char src[INET6_ADDRSTRLEN];
+	inet_ntop(AF_INET6, &ip_hdr->ip6_src, src, sizeof(src));
+	return std::string(src);
+}
+
+std::string IPv6::get_dest() {
+	char dst[INET6_ADDRSTRLEN];
+	inet_ntop(AF_INET6, &ip_hdr->ip6_dst, dst, sizeof(dst));
+	return std::string(dst);
+}
+
+uint16_t IPv6::get_src_port() {
+	return src_port;
+}
+
+uint16_t IPv6::get_dest_port() {
+	return dest_port;
+}
+
+
+
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/packet/packet.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/packet/packet.cpp
new file mode 100644
index 00000000..11b1f81d
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/packet/packet.cpp
@@ -0,0 +1,49 @@
+#include "../../include/packet/packet.hpp"
+#include <cstring>
+
+ApplicationProtocol Packet::get_application_protocol() {
+	if (!payload_ptr || payload_len < 4) goto check_port;
+
+	if (transport_protocol == TransportProtocol::TCP) {
+		if (!memcmp(payload_ptr, "GET ", 4) ||
+			!memcmp(payload_ptr, "POST", 4) ||
+			!memcmp(payload_ptr, "HEAD", 4) ||
+			!memcmp(payload_ptr, "PUT ", 4) ||
+			!memcmp(payload_ptr, "HTTP", 4))
+			return ApplicationProtocol::HTTP;
+	}
+
+	if ((src_port == 53 || dst_port == 53) && payload_len >= 12) {
+		return ApplicationProtocol::DNS;
+	}
+	if (transport_protocol == TransportProtocol::TCP && payload_len >= 3) {
+		if (payload_ptr[0] == 0x16 && payload_ptr[1] == 0x03)
+			return ApplicationProtocol::HTTPS;
+	}
+
+check_port:
+	uint16_t port = (src_port < dst_port) ? src_port : dst_port;
+	if (transport_protocol == TransportProtocol::TCP) {
+		switch (port) {
+			case 21:  return ApplicationProtocol::FTP;
+			case 22:  return ApplicationProtocol::SSH;
+			case 25:  return ApplicationProtocol::SMTP;
+			case 53:  return ApplicationProtocol::DNS;
+			case 80:  return ApplicationProtocol::HTTP;
+			case 443: return ApplicationProtocol::HTTPS;
+			default:  return ApplicationProtocol::UNKNOWN;
+		}
+	}
+
+	if (transport_protocol == TransportProtocol::UDP) {
+		switch (port) {
+			case 53:  return ApplicationProtocol::DNS;
+			case 443: return ApplicationProtocol::QUIC;
+			case 123: return ApplicationProtocol::NTP;
+			default:  return ApplicationProtocol::UNKNOWN;
+		}
+	}
+
+	return ApplicationProtocol::UNKNOWN;
+}
+
diff --git a/PROJECTS/beginner/network-traffic-analyzer/cpp/src/stats/protocolStats.cpp b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/stats/protocolStats.cpp
new file mode 100644
index 00000000..4be6ca44
--- /dev/null
+++ b/PROJECTS/beginner/network-traffic-analyzer/cpp/src/stats/protocolStats.cpp
@@ -0,0 +1,421 @@
+#include "../../include/stats/protocolStats.hpp"
+
+#include "ftxui/dom/table.hpp"
+
+
+Stats::Stats() {
+	last_tick = std::chrono::steady_clock::now();
+}
+/**
+ * @brief Aggregates a newly captured packet.
+ *
+ * Updates:
+ *  - Total packet/byte counters
+ *  - Transport protocol stats
+ *  - Application protocol stats
+ *  - IP-level statistics
+ *  - Communication pairs
+ *
+ * Must be called only from capture thread.
+ * Protected by mutex.
+ */
+void Stats::add_packet(Packet &packet) {
+	std::lock_guard<std::mutex> lock(mtx);
+
+	++snapshot.total_p;
+	snapshot.total_b += packet.total_len;
+
+	auto& t = transport_map[packet.transport_protocol];
+	t.packets++;
+	t.bytes += packet.total_len;
+
+	auto& a = application_map[packet.application_protocol];
+	a.packets++;
+	a.bytes += packet.payload_len;
+
+	ip_map[packet.src].packets_sent++;
+	ip_map[packet.src].bytes_sent += packet.total_len;
+
+	ip_map[packet.dst].packets_received++;
+	ip_map[packet.dst].bytes_received += packet.total_len;
+
+	auto key = std::make_pair(packet.src, packet.dst);
+	pairs[key].packets++;
+	pairs[key].bytes += packet.total_len;
+
+}
+
+
+const char* transport_to_str(TransportProtocol p) {
+	switch (p) {
+		case TransportProtocol::TCP:   return "TCP";
+		case TransportProtocol::UDP:   return "UDP";
+		case TransportProtocol::ICMP:  return "ICMP";
+		case TransportProtocol::ICMP6: return "ICMP6";
+		case TransportProtocol::IGMP:  return "IGMP";
+		default:                       return "UNKNOWN";
+	}
+}
+
+const char* app_to_str(ApplicationProtocol p) {
+	switch (p) {
+		case ApplicationProtocol::HTTP:  return "HTTP";
+		case ApplicationProtocol::HTTPS: return "HTTPS";
+		case ApplicationProtocol::DNS:   return "DNS";
+		case ApplicationProtocol::FTP:   return "FTP";
+		case ApplicationProtocol::SSH:   return "SSH";
+		case ApplicationProtocol::SMTP:  return "SMTP";
+		case ApplicationProtocol::QUIC:  return "QUIC";
+		case ApplicationProtocol::NTP:   return "NTP";
+		default:                         return "UNKNOWN";
+	}
+}
+
+/**
+ * @brief Rebuilds transport protocol snapshot table.
+ *
+ * Sorts protocols by packet count (descending).
+ * Calculates percentage relative to total traffic.
+ *
+ * Called periodically by UI update thread.
+ */
+
+void Stats::update_transport_stats() {
+	std::lock_guard<std::mutex> lock(mtx);
+	snapshot.transport_rows.clear();
+	snapshot.transport_rows.push_back({ "Proto", "Packets", "Bytes", "%" });
+
+	std::vector<std::pair<TransportProtocol, protocolStats>> tps(
+		transport_map.begin(), transport_map.end()
+	);
+	std::sort(tps.begin(), tps.end(),
+		[](auto& a, auto& b) {
+			return a.second.packets > b.second.packets;
+		});
+
+	for (const auto& [proto, stats] : tps) {
+		double percent = snapshot.total_b ? stats.bytes * 100.0 / snapshot.total_b : 0.0;
+		snapshot.transport_rows.push_back({
+			transport_to_str(proto),
+			std::to_string(stats.packets),
+			std::format("{:.2f}", stats.bytes / (1024.0 * 1024.0)),
+			std::format("{:.2f}", percent)
+		});
+
+	}
+}
+
+
+/**
+ * @brief Rebuilds application protocol snapshot.
+ *
+ * Sorted by packet count.
+ * Percent calculated relative to total bytes.
+ */
+void Stats::update_application_stats() {
+	std::lock_guard<std::mutex> lock(mtx);
+	std::vector<std::pair<ApplicationProtocol, protocolStats>> apps(
+		application_map.begin(), application_map.end()
+	);
+
+	std::sort(apps.begin(), apps.end(),
+		[](auto& a, auto& b) {
+			return a.second.packets > b.second.packets;
+		});
+
+	snapshot.app_rows.clear();
+	snapshot.app_rows.push_back({ "Proto", "Packets", "Bytes (MB)", "%" });
+
+	for (const auto& [proto, s] : apps) {
+		double percent = snapshot.total_b
+			? s.bytes * 100.0 / snapshot.total_b
+			: 0.0;
+
+		snapshot.app_rows.push_back({
+			app_to_str(proto),
+			std::to_string(s.packets),
+			std::format("{:.2f}", s.bytes / (1024.0 * 1024.0)),
+			std::format("{:.2f}", percent)
+		});
+	}
+}
+
+/**
+ * @brief Generates snapshot for top IP addresses.
+ *
+ * @param limit Maximum number of IPs to display.
+ *
+ * Sorted by transmitted packets (descending).
+ */
+void Stats::update_ip_stats(size_t limit) {
+	std::lock_guard<std::mutex> lock(mtx);
+	snapshot.rows.clear();
+
+	snapshot.rows.push_back({"IP Address", "Packets TX", "Packets RX"});
+	std::vector<std::pair<std::string, IPStats>> ips(
+		ip_map.begin(), ip_map.end()
+	);
+
+	std::sort(ips.begin(), ips.end(),
+		[](auto& a, auto& b) {
+			return a.second.packets_sent > b.second.packets_sent;
+		});
+
+	size_t count = 0;
+	for (const auto& [ip, s] : ips) {
+		if (count++ >= limit) break;
+		snapshot.rows.push_back({ip,
+			"TX: " + std::to_string(s.packets_sent),
+			"RX: " + std::to_string(s.packets_received)}
+		);
+
+	}
+}
+
+/**
+ * @brief Builds snapshot of top communication pairs.
+ *
+ * @param limit Maximum number of pairs to include.
+ *
+ * Sorted by total bytes transferred.
+ */
+
+void Stats::update_pairs(size_t limit) {
+	std::lock_guard<std::mutex> lock(mtx);
+	std::vector<std::pair<std::pair<std::string, std::string>, protocolStats>> vec(pairs.begin(), pairs.end());
+	std::sort(vec.begin(), vec.end(),
+		[](auto& a, auto& b) {
+			return a.second.bytes > b.second.bytes;
+		});
+
+	snapshot.pairs_rows.clear();
+	snapshot.pairs_rows.push_back({ "Source", "Destination", "bytes received", "%" });
+	size_t count = 0;
+	for (const auto& [pair, s] : vec) {
+
+		if (count++ >= limit) break;
+		double percent = snapshot.total_b ? (s.bytes * 100.0 / snapshot.total_b) : 0.0;
+		snapshot.pairs_rows.push_back({
+			pair.first,
+			pair.second,
+			std::format("{:.0f}", s.bytes * 1.0),
+			std::format("{:.2f}", percent),
+
+		});
+
+	}
+}
+
+void Stats::update_packets(){
+	std::lock_guard lock(mtx);
+	snapshot.packets_rows.clear();
+	snapshot.packets_rows.push_back({ "IPVersion", "Transport protocol", "Source", "Destination", "App protocol"});
+
+	for (auto& packet : packets) {
+		snapshot.packets_rows.push_back({
+			packet.ip_version == IPVersion::v4 ? "IPv4" : "IPv6",
+			transport_to_str(packet.transport_protocol),
+			packet.src,
+			packet.dst,
+			app_to_str(packet.application_protocol),
+
+		});
+	}
+}
+
+double Stats::smooth_value(size_t i, size_t start) {
+	const int window = 3;
+	double sum = 0.0;
+	int count = 0;
+
+	for (int k = -window; k <= window; ++k) {
+		long idx = (long)i + k;
+		if (idx >= (long)start && idx < (long)snapshot.bandwidth_history.size()) {
+			sum += snapshot.bandwidth_history[idx].bytes_per_sec;
+			count++;
+		}
+	}
+	return count ? sum / count : 0.0;
+}
+/**
+ * @brief Calculates current bandwidth (bytes/sec).
+ *
+ * Uses:
+ *   - Delta bytes since last tick
+ *   - Time elapsed
+ *   - Exponential smoothing to reduce noise
+ *
+ * Stores history for graph rendering.
+ */
+void Stats::update_bandwidth() {
+	std::lock_guard<std::mutex> lock(mtx);
+	using namespace std::chrono;
+
+	auto now = steady_clock::now();
+	double ts = duration_cast<duration<double>>(now.time_since_epoch()).count();
+	double elapsed = duration_cast<duration<double>>(now - last_tick).count();
+
+	if (elapsed >= 1.0) {
+
+		uint32_t delta_bytes = snapshot.total_b - last_b;
+
+		snapshot.bandwidth = delta_bytes / elapsed; // bytes per second
+
+		last_b = snapshot.total_b;
+		last_tick = now;
+		const double alpha = 0.2;
+		smooth_bandwidth =
+			alpha * snapshot.bandwidth + (1.0 - alpha) * smooth_bandwidth;
+
+		snapshot.bandwidth_history.push_back({ ts, smooth_bandwidth });
+	}
+	snapshot.max_bandwidth = std::max(snapshot.max_bandwidth, snapshot.bandwidth);
+
+}
+
+/**
+ * @brief Exports current statistics to CSV file.
+ *
+ * Includes:
+ *  - Summary
+ *  - Transport protocols
+ *  - Application protocols
+ *  - IP statistics
+ *  - Bandwidth history
+ */
+
+void Stats::export_csv(const std::string& filename) {
+	std::lock_guard<std::mutex> lock(mtx);
+	std::ofstream file(filename);
+	if (!file.is_open()) return;
+
+	file << "summary\n";
+	file << "total_packets,total_bytes,bandwidth\n";
+	file << snapshot.total_p << ","
+		 << snapshot.total_b << ","
+		 << snapshot.bandwidth << "\n\n";
+
+	// ===== Transport protocols =====
+	file << "transport_protocols\n";
+	file << "protocol,packets,bytes,percent\n";
+
+	for (const auto& [proto, s] : transport_map) {
+		double percent = snapshot.total_b ? (s.bytes * 100.0 / snapshot.total_b) : 0.0;
+		file << transport_to_str(proto) << ","
+			 << s.packets << ","
+			 << s.bytes << ","
+			 << percent << "\n";
+	}
+	file << "\n";
+
+	// ===== Application protocols =====
+	file << "application_protocols\n";
+	file << "protocol,packets,payload_bytes\n";
+
+	for (const auto& [proto, s] : application_map) {
+		file << static_cast<int>(proto) << ","
+			 << s.packets << ","
+			 << s.bytes << "\n";
+	}
+	file << "\n";
+
+	// ===== IP stats =====
+	file << "ip_stats\n";
+	file << "ip,packets_sent,packets_received,bytes_sent,bytes_received\n";
+
+	for (const auto& [ip, s] : ip_map) {
+		file << ip << ","
+			 << s.packets_sent << ","
+			 << s.packets_received << ","
+			 << s.bytes_sent << ","
+			 << s.bytes_received << "\n";
+	}
+
+
+	//bandwidth
+	file << "time,bandwidth\n";
+
+	for (const auto& p : snapshot.bandwidth_history) {
+		file << p.timestamp << "," << p.bytes_per_sec << "\n";
+	}
+
+	file.close();
+
+}
+/**
+ * @brief Exports statistics to JSON format.
+ *
+ * Designed for:
+ *  - External processing
+ *  - Visualization tools
+ *  - Data pipelines
+ */
+void Stats::export_json(const std::string& filename) {
+	std::lock_guard<std::mutex> lock(mtx);
+	std::ofstream file(filename);
+	if (!file.is_open()) return;
+
+	file << "{\n";
+
+	// ===== Summary =====
+	file << "  \"summary\": {\n";
+	file << "    \"total_packets\": " << snapshot.total_p << ",\n";
+	file << "    \"total_bytes\": " << snapshot.total_b << ",\n";
+	file << "    \"bandwidth\": " << snapshot.bandwidth << "\n";
+	file << "  },\n";
+
+	// ===== Transport =====
+	file << "  \"transport\": [\n";
+	bool first = true;
+	for (const auto& [proto, s] : transport_map) {
+		if (!first) file << ",\n";
+		first = false;
+
+		double percent = snapshot.total_b ? (s.bytes * 100.0 / snapshot.total_b) : 0.0;
+
+		file << "    {\n";
+		file << "      \"protocol\": \"" << transport_to_str(proto) << "\",\n";
+		file << "      \"packets\": " << s.packets << ",\n";
+		file << "      \"bytes\": " << s.bytes << ",\n";
+		file << "      \"percent\": " << percent << "\n";
+		file << "    }";
+	}
+	file << "\n  ],\n";
+
+	// ===== IP stats =====
+	file << "  \"top_ips\": [\n";
+	first = true;
+	for (const auto& [ip, s] : ip_map) {
+		if (!first) file << ",\n";
+		first = false;
+
+		file << "    {\n";
+		file << "      \"ip\": \"" << ip << "\",\n";
+		file << "      \"packets_sent\": " << s.packets_sent << ",\n";
+		file << "      \"packets_received\": " << s.packets_received << ",\n";
+		file << "      \"bytes_sent\": " << s.bytes_sent << ",\n";
+		file << "      \"bytes_received\": " << s.bytes_received << "\n";
+		file << "    }";
+	}
+	file << "\n  ]\n";
+
+	file << ",\n  \"communication_pairs\": [\n";
+	first = true;
+
+	for (const auto& [pair, s] : pairs) {
+		if (!first) file << ",\n";
+		first = false;
+
+		file << "    {\n";
+		file << "      \"src\": \"" << pair.first << "\",\n";
+		file << "      \"dst\": \"" << pair.second << "\",\n";
+		file << "      \"packets\": " << s.packets << ",\n";
+		file << "      \"bytes\": " << s.bytes << "\n";
+		file << "    }";
+	}
+
+	file << "\n  ]";
+
+	file << "}\n";
+	file.close();
+}
diff --git a/PROJECTS/beginner/network-traffic-analyzer/LICENSE b/PROJECTS/beginner/network-traffic-analyzer/python/LICENSE
similarity index 100%
rename from PROJECTS/beginner/network-traffic-analyzer/LICENSE
rename to PROJECTS/beginner/network-traffic-analyzer/python/LICENSE
diff --git a/PROJECTS/beginner/network-traffic-analyzer/README.md b/PROJECTS/beginner/network-traffic-analyzer/python/README.md
similarity index 100%
rename from PROJECTS/beginner/network-traffic-analyzer/README.md
rename to PROJECTS/beginner/network-traffic-analyzer/python/README.md
diff --git a/PROJECTS/beginner/network-traffic-analyzer/justfile b/PROJECTS/beginner/network-traffic-analyzer/python/justfile
similarity index 100%
rename from PROJECTS/beginner/network-traffic-analyzer/justfile
rename to PROJECTS/beginner/network-traffic-analyzer/python/justfile
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