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System Administration 201
2. Click on the check box for
MAC Filtering
to enable (or disable) this feature, as required.
3. Enter a MAC address in the MAC field, then click on the Add button to add this address to the “blocked”
list, or click on the Remove button to remove this address from the list.
For advanced security, see Establishing Session Rate Limiting {Session Limit} on page 204.
Utilizing Packet Capturing {Packet Capture}
The Packet Capture feature provides NSE administrators with an on-system utility to capture network traffic
on each of the NSE network interfaces. The captured network traffic will be accessible for FTP download and
viewing on a remote host, in the form of a PCAP-formatted file. (Note that a utility that is capable of reading
and displaying PCAP-formatted files, such as Wireshark®, is required in order to view the results).
1. From the Web Management Interface, click on
System
, then
Packet Capture
. The Packet Capture Settings
screen appears:
2. To initiate a capture on a given interface, click that interface’s associated Start button. The button label will
change to Stop , indicating that a capture is in progress. Click the button again to stop the capture.
3. When a capture has been stopped, the captured traffic can be viewed by clicking the Download link for
the given interface.
4. To modify capture settings, click the Show button for the desired interface. This will display the
parameters that can be adjusted. Filtering expressions must be entered in the form of a PCAP-style string: