Tcp port scanner using python and scapy

Tcp port scanner using python and scapy. This tutorial will implement a SYN flood attack using the Scapy library in Python. Open up your Kali terminal or any Linux terminal and let's go. call checksum () with the pseudo header and the UDP packet. However, it works as expected when scanning web pages and detects open ports. Nmap: Nmap is a free and open-source network scanning tool. Burp Suite Deep Dive course: Mar 1, 2020 · Network Scanning using scapy module – Python. To get started, you need to install Scapy: pip3 install scapy. impacket - Impacket is a collection of Python classes for working with network protocols . Let’s put a TCP segment on top of IP and assign it to the packet variable, then stack it on top of Ethernet. Apr 1, 2021 · Note: The Python Scapy module can be installed in Ubuntu14. Here is the code: Dec 20, 2022 · Moreover, before doing SYNACKpkt. Jul 12, 2021 · What you want to scan?: localhost Starting scan on host: 127. The program will take a range of port numbers as input and print the state (open or closed) of all the ports in that range. sr( IP(dst="192. Performing various small network tests and operations using the Scapy interpreter. all import *. For reference, I am doing the following in Scapy (super simple): a=IP() set a. Aug 26, 2016 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. It is designed to allow fast packet prototyping by using default Oct 11, 2012 · The following example explains how to use the checksum () function to compute and UDP checksum manually. 8 and from/to port 23. 11 to my current machine with the IP of, 192. Sep 28, 2023 · Created in 2003, Scapy is a Python program that allows you to send, sniff, dissect, and forge network packets. To show the usage and the help in the command line interface, use the --help ( -h) option. 3. Building network attacking and scanning tools and testing them against Windows / Linux / Cisco targets. 17,499 views. modules yet. import random. Task 1 Scanning – Port Scan 1. py” and exit the editor. Traffic is generated using netcat as follows: nc -u -p 7777 ip_dst_addr 9999. To run the program discussed in this article, you will need A simple TCP Connect port scanner developed in Python 3. want to send a UDP packet with a custom Source IP of 192. all import sr1, IP, TCP OPEN_PORTS = [] def analyze_port(host, port): """ First, we gonna need to import essential methods from scapy: from scapy. You can find the following code in the port_scan_scapy. It is able to forge or decode packets of a wide number of protocols, send them on Scapy provides a simple TCP client automaton (no retransmits, no SAck, no timestamps, etc. Mar 13, 2018 · Now, I want to connect to this port from my client (say 2. put(worker) # wait the threads ( port scanners ) to finish. It allows you to forge, send, decode, capture, and analyze network packets Nov 12, 2013 · I'm attempting to write a Python script which uses the Scapy module to ping an internal IP range to determine which IP's are online. 10. 2. Aug 30, 2021 · Creating a port scanner with Python (0:00–0:55) Hello, I'm Keatron Evans and today you're going to learn some basic Python with me by writing a port scanner in about five minutes. It has several functionalities through which we can easily forge and manipulate the packet. Get ready to use pip to install scapy (python3 -m pip install scapy). summary(), count=5) Scapy also allows us to store the sniffed packets in a pcap file. Nov 29, 2012 · 8. 2 are closed. import pyfiglet. All I had to do was pkt [IP]. We can create X509 certificates, talk to Radius servers, do IPSEC (AH and ESP), do WEP decrypting and much more – as you’ll see if you enter the command Apr 5, 2021 · Using Scapy. In other words, Scapy is a powerful interactive packet manipulation program. Jan 26, 2020 · 1. 239. all import sr1, IP, TCPOPEN_PORTS = []def analyze_port(host, port): """ Function that determines the status of May 3, 2019 · Find centralized, trusted content and collaborate around the technologies you use most. From looking at scapy source, the scapy package doesn't appear to import anything or define an __all__ in __init__. Open a Python console or create a new Python file and Scapy is a Python program that enables the user to send, sniff and dissect and forge network packets. is a byte. argv: print(''' Welcome to the port scanner To use this program enter a IP Oct 12, 2016 · Learning to use the amazing Scapy module and all its capabilities. I'm going to show you the basics of how we write a very fundamental Python script — a basic port Nov 29, 2016 · However, when I do this with Scapy, it doesn't seem to have the correct source port when received on the other end. Then your next packet (pktB) should have sequence number 1001 + pktA. DNS scan : A DNS scan tests whether a DNS server is running on the target system. import sys. Each port specified is checked to see if it is either open, closed, or filtered. Using Scapy in your tools; Extending Scapy with add-ons; Adding new protocols. L3socket supersocket. Scapy makes it easy to create and send custom packets over the network and to sniff network Apr 19, 2023 · In Stop using Telnet to test ports, I explored several alternative commands and scripts to test TCP connectivity. Build your own tools. It provides advanced capabilities for network discovery, host scanning, port scanning, and ARP spoofing detection. all import * What is Scapy. The stored pcap files can be analyzed using Wireshark, tcpdump, WinDump, Packet Square, etc. It is able to forge or decode packets of a wide number of protocols, send them on the wire, capture them, store or read them using pcap files, match requests and replies, and much more. The code I have written so far (it is an t = Thread(target=scan_thread) # when we set daemon to true, that thread will end when the main thread ends. I'm running my script on Kali linux on virtual box and when I'm scanning my NAT network created by Virtual Box it's showing me devices that are connected, but when I'm using wireless adapter to scan my wifi network the scanner is unable to find any devices, which is strange because netdiscover finds In this post we’ll cover how to create custom packets using scapy. Developing a TCP port scanner using a programming language like Python provides a level of Dec 12, 2019 · If you're on Linux, BSD, OSX, yeah sure, using Raw sockets. ) Scapy is allowed by Python to control all levels of data packet handling and can be used for purposes like network state verification, Web application unit testing Nov 16, 2014 · Send and receive packets at layer 3 using the conf. Feb 24, 2021 · Create an Ethernet packet using Ether () method. All 65535 scanned ports on 192. Scapy allows packet forgery, sniffing, pcap reading/writing, and real-time interaction with network targets. b=UDP() Jun 25, 2021 · This is for my python class, I'm trying to make a port scanner that can scan TCP ports when the user enters an IP address, address range or domain on PowerShell. There are two important superclasses: Socket and Packet. ARP scanning helps identify devices, while DNS sniffing unveils the content being accessed. summary() print packet. Scapy Overview Scapy Background Scapy is a Python module created by Philippe Biondi that allows extensive packet manipulation. Scapy is a powerful Python-based interactive packet manipulation program and library. Host is up (0. #scapy. Please find the below source code for the Port Scanner : Source Code. Oct 14, 2016 · 0. from scapy. L2socket supersocket. This capability allows construction of tools that can probe, scan or attack networks. Dec 19, 2022 · Network traffic analysis with Python, Scapy (and some Machine Learning) Scapy is a wonderful Python library that allows to craft packets and send them on a network. Pytheas22 is a Port Scanner which scans IP-Cameras of lots of Countries, internal networks and individual hosts. The basic idea behind the recipe we will see in this tutorial is that we keep sniffing packets. argv) < 1 or "-help" in sys. pySerial - Python serial port access library bettercap - The Swiss Army knife for 802. Interestingly, when I tried a similar scanner using Python's socket library, it detected the ports correctly. filter='src host 8. The ip target has to be specified. Y ou can find the following code in the port_scan_scapy. The server does not use port 80 and port 443. Scapy is a powerful interactive packet manipulation program and library for Python. The sniffer can receive only first netcat msg and send test. 1 port 0 is closed port 1 is closed port 2 is closed port 3 is closed port 4 is closed Time taken 8. However I'm not sure how plug and play this is going to be: the use of sr1 restricts the output to a single packet, so you're probably going to have to change that to sr (which gives you a list of all answers) Jun 29, 2014 · I’m trying to make a TCP port scanner, but I’m sticking to a very simple example that I lined together from a more advanced example I found online. 11 frames to display nearby wireless networks in a nice format, in this tutorial, we will do a similar one. 1. Pull requests. Open up a text editor, copy & paste the code below. py file: from scapy. 11, BLE, IPv4 and IPv6 networks reconnaissance and MITM attacks. You might also want to adjust the filter to answer only to packets destined for your host (or a particular host/network). You also might need to run the script as root. all import ICMP, IP, sr1, TCP. Second, we gonna need to make an ARP request as shown in the following image: The network scanner will send the ARP request indicating who has some specific IP address, let's say "192. The following steps must be performed: compute the UDP pseudo header as described in RFC768. Hardware and Software Python 2. Jan 4, 2023 · The first thing we must do is import the socket library and other libraries that we need. After successfully run nmap command then stop the packet analyzer with ctrl+c. build a UDP packet with Scapy with p [UDP]. src and a. Scapy References: Introduction to Scapy ; Scapy usage ; For example, to generate one single TCP SYN packet, we connect to the terminal and call the Scapy tool using the name Scapy. Here is how to use Scapy’s TCP client automaton (needs at least Scapy v2. Mar 22, 2021 · Using it to create new packets may help clear the basic concepts of many people regarding the transfer of packets, and things like TCP and UDP stacks. I need to use Scapy for this, so no nmap and other is allowed. These commands and scripts range from basic tests to more sophisticated checks, but they are limited to the features provided by supporting tools like Netcat . jdizzle. Building your own (basic) version of NMAP and scanning Windows / Linux hosts. daemon = True # start the daemon thread. I will also create a firewall for wifi in particular using python. If you're on this field for a while, you might have seen airodump-ng utility that sniff, capture and decode 802. This application leverages the use of Python's Standard Library asyncio framework to execute a number of TCP connections to an arbitrary number ports on target IP addresses, taking a maximum time equal to the connection timeout setting (defaults to 10 seconds) to return all results. answered Nov 5, 2010 at 23:31. Through scapy module we can create different network tools like ARP Spoofer, Network Dec 8, 2021 · Port Scanner is built on Python 3 and uses some extra libraries such as socket and pyfiglet (for a fancy banner). Feb 6, 2024 · 2. . Automata can provide input and output in the shape of a supersocket (see Automata’s documentation ). Code execution with Screenshot Buy the report - Contents. To associate your repository with the tcp-port-scanner topic, visit your repo's landing page and select "manage topics. I've got this so far: #!/usr/bin/python from scapy. Explore Teams Create a free Team Jan 5, 2022 · A simpler approach is to use the builtin ipaddress and socket libraries. 00024s latency). If the port 22 is open it will try to login to that host via bruteforce. Likewise, you cannot simply set the acknowledge number field in the TCP header to 1 (as you're doing with the "scapy packet 123"). Dec 30, 2022 · Here is an example of how you could use Scapy to perform network discovery using the ARP protocol: from scapy. Aug 30, 2016 · Have in mind that when you use socket (module) to communicate with another computer sockets automatically construct your packets (headers, etc) and send the content you wish to send. Scapy is used for forging and manipulating packets through python and can also be used as an alternative to carrying out a few functionalities provided by popular Wireshark and Nmap. This multi-threaded port scanner allows for TCP and UDP scanning at a basic level. Conclusion: In conclusion, this blog discussed a script that performs network scanning and port scanning on a given IP address. Does it work if you add iface=eth0 (or whatever your primary ethernet interface is called) to the sniff parameter list? Well, in this project, we are going to build a Wi-Fi scanner using Scapy library in Python. Creating a Packet with Scapy. To install Scapy, open a terminal and enter the following command: pip install scapy This will download and install the latest version of Scapy. In this blog post we show how Scapy can be used to read a pcap file, in order to detect abnormal behavior. Different operating systems have different Below is my code: from scapy. The scapy and socket libraries are going to be my best friends in this project but before I get into detail about the requirements of building these I want give descriptions on what a network, port, and wifi scanner are, as well as a firewall ofcourse. 8. I used scapy for it, as it turns out to ease packet manipulation. But when you construct a packet with scapy you craft it from the beginning so you define its content and its headers,layers etc. python networking network cybersecurity port-scanner scapy network-scanner. The shell mode is particularly important as you can troubleshoot network problems easily while doing some exploration work. Jul 5, 2021 · sniff(prn=lambda x:x. 1", the owner of that IP address ( the target ) will Jun 2, 2017 · Test. UDP checksum Mar 31, 2018 · Stack Overflow Jobs powered by Indeed: A job site that puts thousands of tech jobs at your fingertips (U. I'm going to test this on my local router, which has the private IP address of 192. all import *: This line imports all functions and classes from the Scapy library, allowing you to use Scapy functionalities without prefixing them masscan - TCP port scanner, spews SYN packets asynchronously, scanning entire Internet in under 5 minutes. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Finally, the fun stuff. Jul 27, 2021 · Nmap scan report for 192. " GitHub is where people build software. Running the following command will write the sniffed packets in a pcap: wrpcap("<file name>", capture) where capture is the list of sniffed packets. Colorama is a Python library that simplifies terminal text formatting by allowing the use of ANSI escape codes for colored output on both Windows and Unix-based systems. Scapy is able to forge or decode packets of a wide number of protocols, send them on the wire, capture them, match requests and replies, and much more. The hard way. - GitHub - SR42-dev/tcp-port-scanner: A port scanner implemented using the scapy package in python. SYN scan : A SYN scan sends a TCP SYN packet to a port and looks for a SYN/ACK packet in response. As a result, you need to explicitly import scapy. In the following example, we see that we have defined a analyze_port() function that has as parameters the host and port to analyze. 41. import socket. py and follow along. payload_size, and so forth. # Define end host and TCP port range. 8 and dst port 23'. Note : for now, their is no port range (such as -p 22-80) or port names/groups (such as -p POP3 IMAP ). There might be a lot of reason why you see an important amount of data (like, you have a download running in another process, or you see traffic from other stations on the network, etc. Apr 19, 2022 · From what was a simple port scanner using Scapy, I decided to expand upon the program I created for a class. What to learn next. Jul 25, 2023 · I will explain. Set the destination to broadcast using variable hwdst. Scapy is a powerful interactive packet manipulation library written in Python. Simple example; Layers; Dissecting; Building; Fields; Design patterns; Calling Scapy functions. Binary in python is represented in a string which looks like this \x00\xff every \x. pcap in response. In the following example, we see that we have defined a analyze_port () function that has as parameters the host and port to analyze. I’m expecting the code to show me that port 80 is open since I started my Apache server on my Linux box. Scapy is a library supported by both Python2 and Python3. It is a powerful interactive packet manipulation program. all import * # Define the range of IP addresses to scan ip_range = "192. 17 that is hosting a UDP Server on port 6789. 0. MAC Address: 00:50:56:EA:44:EB (VMware) Nmap done: 1 IP address (1 host up) scanned in 2. This is what I've tired: Pull requests. only). There are other tools to capture traffic, such as tcpdump or Wireshark, but in this guide, we'll use the Scapy library in Python to sniff packets. Otherwise this SYNACKpkt. The script captures all the incoming and outgoing packets from all interface of the machine. Packet sending with scapy. It runs natively on Linux (as well as Mac OS X), but the latest versions of scapy actually supports Windows out-of-the-box. 1 tcp/80 tcp/443 udp/1-100. Raw socket is a socket the sends and receives data in binary. Telling me there are no open ports. You have the options to perform a quick port scan using only Scapy, a quick Nmap scan, or a more detailed Nmap scan using '-sC -sV -oA Apr 21, 2020 · In this article, we will learn how to program a port scanner using the ‘ nmap ‘ module in Python. Here we’ll implement a couple of simple scans using scapy in Python. If you pass it to a packet, sr( will send a packet to each host. import. seq + 1. 0. It is used for interacting with the packets on the network. So I'm working on a simple port scanner in python for a class (not allowed to use the python-nmap library), and while I can get it to work when passing a single IP address, I can't get it to work using a range of IPs. answered Jan 26, 2020 at 14:39. Usage. The tool would analyze if a corresponding TCP port is open or closed on the destination. Search jobs Manipulate packets. Scapy can be used interactively from a Python prompt or built into scripts and In this tutorial, you will see how you can sniff HTTP packets in the network using Scapy in Python. I want to send a message saying "Hi" using Scapy so I wrote the following code, from scapy. Python3. I don’t get any errors. Open up a new Python file and import Scapy: from scapy. Simple port scanner built using Scapy, performs SYN, UDP and Xmas scans. all import Port-scanning with scapy. Send this to your network and capture the response from different devices. Scapy is a packet manipulation tool for computer networks written in Python. S. Manipulate packets. connect((host, port)) print "Port ", port, " is open". If you're on Windows and have trouble installing Scapy, check out this tutorial. Scapy is able to forge or decode packets of a wide number of protocols, send them on the wire, capture them, match requests and replies, and much more. Please suggest a method to print only the source IP address of every packet. (It definitely did clear mine. Open another terminal and run your commands for example: 3. 5)) Dec 3, 2021 · Example. getlayer(TCP) will again fail with an exception. Combine ARP request packet and Ethernet frame using ‘/’. This version is currently single-threaded, i'm looking forward to turn it multi-threaded in order to speed up the scans. The scanned port list is specified with the --dport ( -p) option. all import anything else from it, as it won't be in sys. The range to be scanned is from 5000 to 10000 (this is an assignment for university). Each port is separated by a space. python3 scanner. This is a small project which i developed as i'm learning python. With Scapy, each network layer is a Python class. 12 seconds Aug 29, 2021 · SYNスキャンをPythonで実装するには、標準ライブラリのsocketだと難しくなりそうなので、Scapyを使用します。Scapyは、パケット操作が簡単にできるライブラリです。Scapyの実行には管理者権限が必要です 。 Scapyのインストールは以下のコマンドで。 Apr 19, 2023 · The real power of Scapy is the level of customization you now have from a familiar language like Python. all. You can sniff all of the IP packets using a raw socket. Thanks. Sep 22, 2019 · I used Python and Scapy module to do that. It was simple and yet took a lot of time of mine. Your original syntax is not distinguishig between source and destination, so it will filter packets from/to ip 8. call ('clear', shell 4 days ago · Extend scapy. 4. The script utilizes the Scapy and socket libraries to Jul 2, 2018 · I am having trouble sending custom UDP packets with Scapy on Python3 with a MacBook. It performs quick scanning of any ports you wish, given an IP or set of IP's that you wish to scan. Apr 13, 2020 · I am trying to write a port scanner in Python for Scapy to find out on which port a webserver is listening. ascii_banner = pyfiglet. Next, open up a Python file, and name it meaningfully, like ip_spoofer. TCP_client. Apr 2, 2024 · Performing a Port Scan. t. Advanced Network Scanner is a powerful Python tool developed by Cipherkrish69x for network administrators and security professionals. But, if we get an expected TCP SYN/ACK response, we will send a RST so the host doesn't keep listening for our ACK since we already know the host is listening on that port. 8, so make sure to have the correct version installed and activated as your default python. chksum=0. I assume if you talk about a "driver" it means you're on Windows in which case you will be restricted (can't access layer 2), and will require administrative privileges anyways. srp () Print the IP and MAC address from the response packets. If the port is open, then there will be no response from the server. Then I check the results with Python script: from scapy. This enables the creation of tools for probing, scanning, or attacking a network. In your case, I think what you want to do is-. Dec 28, 2023 · Conclusion. src to fetch the IP address of the source. It mainly provides a Python interface into libpcap Scapy. 6, Scapy 2. 5) using scapy, so I have to initiate a three-way handshake, which I've been trying to execute using the following code: ip=IP(src="2. 1 Scapy can also be used to perform port scans of protocols such as TCP, IP and UDP so that we can check whether or not a port is open. 1. It is useful in a variety of use cases, one of which is to actually get some hands-on experience when you learn Computer Networks. packet = IP()/TCP() Ether()/packet. By including these two changes the code becomes: SYNACKpkt = sr1(IP(dst=target) / TCP(sport=srcport, dport=port, flags="S", timeout=0. Pytheas22 can scan ipv4 and ipv6 addresses. start() for worker in ports: # for each port, put that port into the queue # to start scanning. reading and writing packets python-scapy. Save the file as “portscanner. all import ARP, Ether, srp. getlayer(TCP) you must also be sure that the answer has a TCP layer (point 11). Whenever you provide the ACK flag in the header, you need to acknowledge the other side's payload by setting the First steps #. 2 On one of the virtual machines, use the following command to scan the TCP ports of the target machine, where dip is the IP address of the other virtual machine: A port scanner implemented using the scapy package in python. tcplink is a SuperSocket subclass, therefore all its Project Scope: The project develops a TCP port scanner with Python and Scapy. 72 seconds. figlet_format("PORT SCANNER") Port-scanning with scapy. packet = pkt. 4") TCP_SYN=TCP(sport=1500, dport=80, flags="S", seq=100) TCP_SYNACK=sr1(ip/TCP_SYN) my_ack = TCP_SYNACK. Here is what I have done so far: import sys from scapy. Here’s a simple way to perform a TCP SYN scan using Scapy: /UDP(dport=53)/DNS(rd=1 Apr 6, 2023 · Port scan. Jan 24, 2014 · You might want to add firewall rules to prevent your host's IP stack from sending RST-ACK packets before Scapy has a chance to send the SYN-ACK. How to Build a Port Scanner in Scapy - Python Penetration Testing [Part 1] - YouTube. This is what I have: s = socket(AF_INET, SOCK_STREAM) try: s = s. all (or from scapy import all) before you can from scapy. So you can use nearly all of scapy's features on a Windows machine as well. python hacking bruteforce internal-network arp-spoofing network-analysis ipcamera arpspoof arp Nov 11, 2021 · Anyone have a solution when using scapy to grab the tcp syn flags and store the source ip, destination ip, port number in a dictionary? I'm trying to build a tool that will take a pcap file and get that. ", proto="TCP")/"\0"*50) Edit: I'm not actually positive on the syntax, you might have to use the protocol number instead of "TCP". For instance, if I listen with Wireshark, all of the packet contents are correct except for the source port. It is used to forge or decode packets of a wide variety of protocols, send them, capture them Jul 26, 2023 · Photo by Thomas Jensen on Unsplash. We can create packets for pretty much any common protocol, like IP, TCP, UDP, NTP, DHCP, SNMP, DNS, ICMP and many more. 1). 04 based VM via ' apt install python-scapy ' command. q. 1/24 Oct 20, 2023 · I've encountered an issue where my Scapy-based script fails to detect open ports on localhost or different virtual machines. 4. ). Oct 16, 2013 · In the XMAS scan, a TCP packet with the PSH, FIN, and URG flags set, along with the port to connect to, is sent to the server. 1: Scapy can be installed using pip, the Python package installer. all import* if len(sys. Sadly, scapy only supports Python up to version 3. Here's the code: #! /usr/bin/env python3. Scapy can also be used to perform port scans to identify open ports on a host. A quick packet Sniffer developed using python v3 with scapy to capture TCP, UDP and ICMP Packets in linux . Dec 21, 2022 · Scapy is a Python library that enables us to send, sniff, and dissect network frames. 5", dst="1. from datetime import datetime. This tutorial provides a foundation for network monitoring using Python and Scapy. Add this topic to your repo. Since your ICMP packet has its layer 2 fields filled as well, as Jan 20, 2015 · These are the packets seen by Scapy that are not related to the packets Scapy has sent (they are not answers to be returned by sr()). py -v -g 127. Scapy filters are from a type called BPF, you can see the syntax here. Now, check log file which captured by network May 7, 2015 · Wild guess: Do you have any unusual network interfaces on the machine where you run scapy? I'm thinking along the lines of virtual machine (such as Virtualbox or VMWare) interfaces, tun/tap or so. This script is tested on linux Operating System on python version3. Scapy is a Python program that enables the user to send, sniff and dissect and forge network packets. *. If the server responds with the RST flag set inside a TCP packet, the port is closed on the server. scanner script. 168. dst. The '/' operator is used to bind layers together. The srp function: srp (pkts, filter=None, iface=None, timeout=2, inter=0, verbose=None, chainCC=0, retry=0, multi=0, iface hint=None) Same as srp but for working at layer 2 with conf. Rainfall is a TCP port scanner that allows you to do stealth scans. IP addresses can be input in several different formats to specify a range (see rules below). all import * # Get the Learning to use the amazing Scapy module and all its capabilities. Nov 4, 2010 · If you don't want to actually send a TCP header, you'd be better off just setting the protocol of the IP packet and gluing a string of zeros on top of it. 0 (Free Download) Windows XP or Linux Router or any PC. In this article lets see how to use few basic functionalities of scapy and also to sniff traffic on the network interface by writing a simple python script. Let's start by creating a simple packet using Scapy. #!/usr/bin/env python import socket import subprocess import sys from datetime import datetime # Clear the screen subprocess. Currently, it can do: SYN Jun 24, 2021 · Net is the util class Scapy uses to handle IPv4 addresses formats. For each IP in your LAN subnet, try connecting a socket to various ports (TCP/UDP). pcap contains a UDP packet with UDP_src=7777 and UDP_dest=9999. But subsequent netcat msgs are not received at all. It is able to forge or decode packets of a wide number of protocols, send them on techniques for using Scapy. ec gj zd tg is ku de tf cj pn