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User Guide for the Cisco Network Analysis Module (NAM) Traffic Analyzer, 5.0
OL-22617-01
Chapter 2 Setting Up The NAM Traffic Analyzer
Monitoring

Encapsulations

Using Encapsulation gives you increased flexibility when trying to monitor (such as counting or
grouping) different types of application traffic. The encapsulation settings affect how traffic of certain
IP based tunneling protocols are treated in the NAM.
You can use the NAM to set up the way you monitor different types of encapsulation in network traffic
for the following protocols:
• IPIP4—IP in IP tunneling
• GREIP—IP over GRE tunneling
• IPESP—IP with Encapsulating Security Payload
• GTP—GPRS (General Packet Radio Service) Tunneling Protocol
• IPIP6—IP in IP tunneling
To configure encapsulation:
Step 1 Choose Setup > Classification > Encapsulations.
The Encapsulations configuration page appears.
Step 2 Use the pull-down menu to choose the type of Encapsulation Configuration you want for each protocol.
• Application in Tunnel, Inner IP Addresses
In default mode, the NAM uses Application in Tunnel, Inner IP Addresses. In this mode, the NAM
will classify the application based on the payload of the tunneled traffic, and use the inner IP
addresses (IP addresses of the traffic carried inside the tunnel) for reporting and capture.
• Application in Tunnel, Outer IP Addresses
In the Application in Tunnel, Outer IP Addresses mode, the NAM will also classify the traffic based
on the payload of the tunneled traffic, but use the outer IP addresses (the IP addresses of the tunnel
endpoints) for reporting and capture.
• Tunnel as Application
In the Tunnel as Application mode, the traffic will be classified as the tunnel protocol and the packet
not further parsed. The outer IP addresses will be used in this case.
Step 3 Click Submit to change the Encapsulation Configuration.
Click Reset to revert to the previous settings since the last Submit.
Monitoring
Before you can monitor data on the NAM Traffic Analyzer, you must set up the data collections. The
NAM 5.0 Traffic Analyzer menu selections for setting up Monitoring are:
• Aggregation Intervals, page 2-74
• Response Time, page 2-76
• Voice, page 2-76
• RTP Filter, page 2-78