Cisco Device Info

Cisco Device Info (CDI) is a free, open-source Windows application to retrieve runtime information from Cisco equipment such as routers and switches. This is achieved using the SNMP protocol. Cisco Device Information supports SNMP versions 1 through 3 and has been tested against a handful of different devices and IOS versions.

Where ever possible SNMP version 2 or 3 should be used due to increased performance. For instructions on how to enable SNMP on devices please refer to the downloadable user guide.


Click any of the below screenshots for full-sized versions.
Cisco SNMP Interfaces Cisco SNMP Routes Cisco SNMP CDP Cisco SNMP Graph

Information retrieved

Once connected to a device the following information will be displayed in a series of tabs:

  • General device information (Hostname, Uptime, Version etc);
  • Interfaces (Description, uptime, admin/operation status etc);
  • Switch stack information. If the device is a member of a stack information on other stack members such as name, model, serial etc will displayed);
  • ARP Cache (Physical address, MAC Address and Interface);
  • Routing table (EIGRP, BGP, OSPF etc distributed routes);
  • IPSec tunnels (Phase two tunnels and the time they have been active);
  • Cisco Discovery Protocol (CDP) information (Cisco devices the routers have found and their platforms, IOS version etc) and
  • Graphed interface usage for Ethernet, DSL and tunnel interfaces


Cisco Device Info is free software and licensed under the LGPL 2.1. Sourcecode is available from the public GitHub repo.

You will need the .Net Framework version 4.0 to run Cisco Device Info, which has been tested on Windows XP, Windows Vista, Windows 7 and Windows 8.


Cisco Device Info is Copyright © 2012 David Hope. Cisco is a registered trademark of Cisco Systems in the United States and certain other countries. The term “Cisco” in the product name refers to the fact that the application has been developed specifically for Cisco devices. Cisco Systems has played no part in the authoring of this software application.

Cisco Device Info includes components licensed under the GNU Library General Public License (LGPL) version 2.1. Whilst the application is subject to Copyright law, No copyright claim is made over the SharpSNMP library included with the application. SharpSNMP is Copyright © 2008-2012 Malcolm Crowe, Lex Li and other contributors.