Nortel Networks NN46110-602 manual Viewing a packet capture output file on a PC

Chapter 5 Packet capture 125

4Exit Capture Configuration mode.

5Start the capture.

CES#capture add test-remote-ip tunnel

CES#capture test-remote-ip

CES(capture-tunnel)#remoteip 192.168.100.1

CES(capture-tunnel)#exit

CES#capture test-remote-ip start

CES#

To stop the capture and save the buffer contents to a file called test6.cap, enter the following commands:

CES#capture test-remote-ip stop

CES#capture test-remote-ip save test6.cap

Saving capture test-trigger to file /ide0/test6.cap please wait . .

.

10 frames written successfully CES#

Viewing a packet capture output file on a PC

After you save a capture buffer to a file on the VPN Router disk, download the file to a workstation and analyze the contents offline using one of many available tools. The VPN Router does not provide utilities to view and analyze packet capture data; however, the VPN Router software CD provides a utility called openpcap that you use to open and decrypt PCAP files on a PC or workstation.

•To view a packet capture file with Ethereal* software, use the openpcap utility supplied with the VPN Router software.

•To view a packet capture file with Sniffer Pro* software, use the openpcap utility supplied with the VPN Router software along with the Ethereal editcap utility.

Installing Ethereal software

To install Ethereal (free of charge):

1Log on to www.ethereal.com and click Download.

2Locate the Microsoft Windows row and click local archive.

Nortel VPN Router Troubleshooting