1<p align="center"> 2 <img src="doc/scapy_logo.png" width=200> 3</p> 4 5# Scapy # 6 7[](https://travis-ci.org/secdev/scapy) 8[](https://ci.appveyor.com/project/secdev/scapy) 9[](https://codecov.io/gh/secdev/scapy) 10[](https://pypi.python.org/pypi/scapy/) 11[](https://pypi.python.org/pypi/scapy/) 12[](LICENSE) 13[](https://gitter.im/secdev/scapy?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) 14 15 16Scapy is a powerful Python-based interactive packet manipulation program and 17library. 18 19It is able to forge or decode packets of a wide number of protocols, send them 20on the wire, capture them, store or read them using pcap files, match requests 21and replies, and much more. It is designed to allow fast packet prototyping by 22using default values that work. 23 24It can easily handle most classical tasks like scanning, tracerouting, probing, 25unit tests, attacks or network discovery (it can replace `hping`, 85% of `nmap`, 26`arpspoof`, `arp-sk`, `arping`, `tcpdump`, `wireshark`, `p0f`, etc.). It also 27performs very well at a lot of other specific tasks that most other tools can't 28handle, like sending invalid frames, injecting your own 802.11 frames, combining 29techniques (VLAN hopping+ARP cache poisoning, VoIP decoding on WEP protected 30channel, ...), etc. 31 32Scapy supports Python 2.7 and Python 3 (3.3 to 3.6). It's intended to 33be cross platform, and runs on many different platforms (Linux, OSX, 34*BSD, and Windows). 35 36## Hands-on ## 37 38### Interactive shell ### 39 40Scapy can easily be used as an interactive shell to interact with the network. 41The following example shows how to send an ICMP Echo Request message to 42`github.com`, then display the reply source IP address: 43 44```python 45sudo ./run_scapy 46Welcome to Scapy 47>>> p = IP(dst="github.com")/ICMP() 48>>> r = sr1(p) 49Begin emission: 50.Finished to send 1 packets. 51* 52Received 2 packets, got 1 answers, remaining 0 packets 53>>> r[IP].src 54'192.30.253.113' 55``` 56 57### Python module ### 58 59It is straightforward to use Scapy as a regular Python module, for example to 60check if a TCP port is opened. First, save the following code in a file names 61`send_tcp_syn.py` 62 63```python 64from scapy.all import * 65conf.verb = 0 66 67p = IP(dst="github.com")/TCP() 68r = sr1(p) 69print(r.summary()) 70``` 71 72Then, launch the script with: 73```python 74sudo python send_tcp_syn.py 75IP / TCP 192.30.253.113:http > 192.168.46.10:ftp_data SA / Padding 76``` 77 78### Resources ### 79 80To begin with Scapy, you should check [the notebook 81hands-on](doc/notebooks/Scapy%20in%2015%20minutes.ipynb) and the [interactive 82tutorial](http://scapy.readthedocs.io/en/latest/usage.html#interactive-tutorial). 83If you want to learn more, see [the quick demo: an interactive 84session](http://scapy.readthedocs.io/en/latest/introduction.html#quick-demo) 85(some examples may be outdated), or play with the 86[HTTP/2](doc/notebooks/HTTP_2_Tuto.ipynb) and [TLS](doc/notebooks/tls) 87notebooks. 88 89The [documentation](http://scapy.readthedocs.io/en/latest/) contains more 90advanced use cases, and examples. 91 92## Installation ## 93 94Scapy works without any external Python modules on Linux and BSD like operating 95systems. On Windows, you need to install some mandatory dependencies as 96described in [the 97documentation](http://scapy.readthedocs.io/en/latest/installation.html#windows). 98 99On most systems, using Scapy is as simple as running the following commands: 100``` 101git clone https://github.com/secdev/scapy 102cd scapy 103./run_scapy 104>>> 105``` 106 107To benefit from all Scapy features, such as plotting, you might want to install 108Python modules, such as `matplotlib` or `cryptography`. See the 109[documentation](http://scapy.readthedocs.io/en/latest/installation.html) and 110follow the instructions to install them. 111 112## Contributing ## 113 114Want to contribute? Great! Please take a few minutes to 115[read this](CONTRIBUTING.md)! 116
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