netexpect - Network Expect, a framework for manipulating network packets

Property Value
Distribution Ubuntu 12.04 LTS (Precise Pangolin)
Repository Ubuntu Universe amd64
Package name netexpect
Package version 0.18
Package release 4
Package architecture amd64
Package type deb
Installed size 556 B
Download size 155.78 KB
Official Mirror
Network Expect is a framework that allows to easily build tools
that can interact with network traffic. Following a script, traffic
can be injected into the network, and decisions can be taken, and
acted upon, based on received network traffic. An interpreted language
(Tcl) provides branching and high-level control structures to direct the
interaction with the network.
Network Expect was heavily influenced and inspired on the Expect program
written by Don Libes, which allows to "talk" to interactive programs in
a scripted fashion.
The type of things that Network Expect can do are usually very low level
network operations, which usually require writing a custom application
in a language like C.
Some of the things that Network Expect can do include:
* Generate arbitrary network traffic and inject it into a network at layer
2 or layer 3.
* A wide range of protocols is supported, including 802.1q, ARP,
Cisco VTP and DTP, GRE, IPv4, IPv6, ICMP, UDP, TCP (including
options), etc.
This Network Expect functionality is very similar to the
functionality provided by several packet crafting and forging open
source tools like Nemesis, Packit, hping, Scapy, and others.
* Listen for network traffic and take decisions based on the type of
traffic received.
* Open a sniffer trace in PCAP format and replay it after changing some
values in the original packet capture.
* Emulate network protocols to see how they interact with other
speakers of that protocol. For example, emulating a TCP server to
investigate approaches to randomization of TCP Initial Sequence Numbers
(ISN) can be easily done in Network Expect.
Visit for more information.


Package Version Architecture Repository
netexpect_0.18-4_i386.deb 0.18 i386 Ubuntu Universe
netexpect - - -


Name Value
libc6 >= 2.4
libdumbnet1 >= 1.8
libglib2.0-0 >= 2.24.0
libpcap0.8 >= 0.9.8
libwireshark1 >= 1.6.0-1
libwiretap1 >= 1.6.0-1
libwsutil1 >= 1.6.0-1
tcl8.5 >= 8.5.0


Type URL
Binary Package netexpect_0.18-4_amd64.deb
Source Package netexpect

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install netexpect deb package:
    # sudo apt-get install netexpect



See Also

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