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Warning:
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- Last Review: July 6, 2012Home > NetScanTools
Pro > Technical Details > Packet
Generator Tool > CDP Packet Generator
CDP Packet Generator Description
Craft and send CDP packets using the NetScanTools Pro Packet Generator.
About sending CDP packets using the Packet Generator
The Packet
Generator tool's CDP mode (Cisco® Discovery
Protocol) allows you to create and send one
or more CDP packets to a group of systems in an
IPv4 subnet. You have full control
over the fields within the header. This protocol
is used by Cisco and HP® (Hewlett-Packard)
switches and routers to share information about
the type of device and capabilities of the
device.Scripted packet
transmission can be used to send multiple
different CDP packets.
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Version 11 Packet Generator Tool Slideshow
Important Notes:
-
This tool
uses WinPcap to send packets. The interface
you use to send packets must be compatible with
WinPcap. Best results are usually obtained from a wired ethernet interface or a 802.11
wireless interface.
-
This is not
a
Packet Flooder or Traffic Generator. It cannot send packets
at a rate necessary to stress or otherwise saturate
an interface.
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Purpose of the CDP Portion of the Packet Generator Tool
- The purpose of this tool is to
give you a way to craft a CDP packet or set of CDP packets
to send to network, then observe the response
by various CDP capable devices with a packet capturing tool like
Packet Viewer
or view the results of those packets attacks in the
log files on the target.
CDP Packet Generator Capabilities
- Sends CDP Packets to the
network mac address 01-00-0c-cc-cc-cc.
- Full header control for the CDP
packet. You can specify most parameters in the header
such as source MAC address, checksum, TTL, Device ID
Field, Software Version Field, Platform Field, Port
ID Field, IPv4 Address of the purported device. The
Capabilities Bits are also full selectable.
- Scripting. Simple scripting
is provided so that you can send different types of
CDP packets.
Scripted packet transmission can be used to send packets
with parameters changing according to your script.
What this tool does not do:
- This is not a packet flooding
tool. Burst rate is about 20Khz and this may vary
from computer to computer.
- This is not a bandwidth testing
tool. You are looking for a piece of dedicated hardware:
Agilent Technologies and Fluke both make these type
of devices.
- This is not a traffic generator
capable of stressing a network interface.
- Do not use this tool if you have
an active virtual machine ethernet interface. This
tool works best with physical ethernet interfaces. You
are welcome to try it with your virtual machine, but
do not count on it working perfectly.
- This tool cannot send custom packets
through WAN (PPP/SLIP) interfaces like modems or
wireless cellular modems.
A video of the Packet Generator tool sending CDP Packets
Video is not available at this time.
More Information about the Packet Generator
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