/nps

TCP/IP network packet simulator

Primary LanguagePythonMIT LicenseMIT

NPS

PentaSecurity TCP/IP packet simulator.

Description

NPS(Network Packet Simulator) is a TCP/IP packet testing tool.

  • Useful for validating an inline(or transparent) network appliance.
  • Supports packet sender and reflector by TC of xml base.
  • Only supports TCP/IP protocol.
[NPS(Client)] ==> [Server]
[           ] <== [      ]

[NPS(Client)] ==> [Inline             ]
[   (Server)] <== [  network appliance]

[NPS(Client)] ==> [Inline             ] ==> [Server]
[           ] <== [  network appliance] <== [      ]

Requirement

* python 2.6, 2.7
* scapy 2.1.0

Installation

To install nps, simply:

$ apt-get install python-pip
$ pip install nps

Quick Start

$ mkdir -p /opt/penta/nps/script/
$ cd /opt/penta/nps/script/

connection.xml : write tcp connection packet info

<tc name="connection">

<client>
 <packet>
  <action>send</action>
   <include>common</include>
   <step>connection_open</step>
   <flag>syn</flag>
   <mss>1460</mss>
   <seq>0</seq>
   <ack>0</ack>
   <sackPerm>true</sackPerm>
 </packet>

 <packet>
  <action>recv</action>
   <include>common</include>
   <step>connection_open</step>
   <flag>syn+ack</flag>
   <mss>1460</mss>
   <seq>0</seq>
   <ack>1</ack>
   <sackPerm>true</sackPerm>
 </packet>

 <packet>
  <action>send</action>
  <include>common</include>
  <step>connection_open</step>
  <flag>ack</flag>
  <seq>1</seq>
  <ack>1</ack>
 </packet>
</client>

</tc>

$ mkdir -p /opt/penta/nps/script/include
$ cd /opt/penta/nps/script/include

common.xml : write client interface name and client ip/port and server ip/port

<object>
 <clientInt>eth0</clientInt>
 <clientIp>192.168.0.100</clientIp>
 <serverIp>192.168.0.200</serverIp>
 <clientPort>12345</clientPort>
 <serverPort>80</serverPort>
</object>

run script

$ nps -f connection.xml