Scapy, part 1
Okay, you can say: You are outdated!! Since it is a tool of five years old. But I never gave considerable attention to it. In last week I see in top 100 network security tool in Fyodor's site, and I can't stop using it. I am talking about the Scapy, a Python program that enables you to forge, dissect, emit or sniff network packets, probe, scan and what your mind wants.
This is a simple post, only to show the basic concepts of scapy.
What is scapy?
"Scapy is a powerful interactive packet manipulation program. It 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. It can easily handle most classical tasks like scanning, tracerouting, probing, unit tests, attacks or network discovery (it can replace hping, 85% of nmap, arpspoof, arp-sk, arping, tcpdump, tethereal, p0f, etc.). It also performs very well at a lot of other specific tasks that most other tools can't handle, like sending invalid frames, injecting your own 802.11 frames, combining technics (VLAN hopping+ARP cache poisoning, VOIP decoding on WEP encrypted channel, ...), etc."
ls -la teste