Packet Tracer

[jcarter]

Is there a real-world version of this?  It would be so useful.  It would save us beginners hours per day.

[Marcos Hernandez]

You are going to love this:

http://www.cisco.com/en/US/products/ps9913/products_ios_protocol_group_home.html

The Cisco Embedded Packet Capture (EPC) allows you to use your Cisco router as a network sniffer.

Let me know if this helps,

Marcos Hernandez
Technical Marketing Engineer
Cisco Systems, Inc.