Chapter 5 Packet capture 119

Global IP parameters

The configurable parameters for the global IP capture object are the same as the parameters available for physical interface objects. The following example creates a global capture object called rawip, navigates to Capture Configuration mode, and displays the commands for the global capture object. For more information about global IP capture objects, see “Global IP captures” on page 107.

CES#capture add rawip global

CES#capture rawip

CES(capture-global)#?

Packet capture mode

 

direction

Captures in one direction

exit

Exits capture mode

filter

Applies interface traffic filter to

 

capture only matching traffic

length

Specifies how many octets to capture for

 

every packet

no

Disables features and settings

trigger

Enables triggers

wrapping

Continues capturing when buffer gets full

CES(capture-global)#

Starting, stopping, and saving capture objects

The following example shows how to start a capture object called test_ether1, stop it, save the buffer to a file (called test_ether1.cap), and finally, clear the capture buffer. You must run all commands at Privileged EXEC mode.

CES#capture test_ether1 start

CES#capture test_ether1 stop

CES#capture test_ether1 save test_ether1.cap

Saving capture test_ether1 to file /ide0/test_ether1.cap please wait . . .

220 frames written successfully CES#clear capture test_ether1 CES#

Using the show capture command to display capture status

Use the show capture command to display a list of capture objects and to display the configuration and status of a specific capture object.

Nortel VPN Router Troubleshooting

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Nortel Networks NN46110-602 manual Starting, stopping, and saving capture objects