Nortel Networks NN46110-602 - Manual (Page 121)

Chapter 5 Packet capture 121
Nortel VPN Router Troubleshooting
Sample packet capture configurations
This section provides sample configurations and the commands used to create
them.
Interface capture object using a filter and direction
In the following example, you configure a capture object called test-filter-in on
Fast Ethernet interface 0/1. This object captures inbound FTP traffic only.
To create and use this capture object, you run commands like the ones illustrated
in this example. These commands do the following:
1 Create a capture object called test-filter-in on Fast Ethernet interface 0/1.
2 Enter Capture Configuration mode for the object.
3 Set the direction for the capture to inbound.
4 Set the filter to capture FTP traffic only.
5 Exit Capture Configuration mode.
6 Start the capture.
CES# capture add test-filter-in FastEthernet 0/1
CES# capture test-filter-in
CES(capture-ethernet)## direction inbound
CES(capture-ethernet)# filter "permit FTP"
CES(capture-ethernet)# exit
CES# capture test-filter-in start
CES#
Note: The filter used in this example is a predefined VPN Router filter.
If you need a filter that is not provided with VPN Router software, you
must create the filter before you configure the capture object.