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Chapter 6 Maintenance
ZyWALL USG 20-2000 User’s Guide
139
Note: You can check the remaining flash space in the Dashboard or Maintenance >
Diagnostics > Packet Capture screen.
To save diagnostic files to a USB storage device, do the following before you collect a diagnostic file:
1 Insert the USB storage device to any USB port on your ZyWALL. In the Monitor > System Status
> USB Storage screen, make sure the USB device’s file system doesn’t display “unknown”.
2 Go to Configuration > System > USB Storage, select Activate USB storage service and click
Apply.
3 In the Maintenance > Diagnostics > Collect screen, select Copy the diagnostic file to USB
storage. Click Apply.
6.10 How to Capture Packets on the ZyWALL
This example traces the IPv4 packets (you can also capture IPv6 packets) sent from or to a specific
IP address (172.16.1.33) through the ZyWALL’s LAN1 and WAN1. You have to evaluate when the
best timing is to capture packets for troubleshooting and do it at the right time.
1 Go to Maintenance > Diagnostics > Packet Capture > Capture, select wan1 and lan1 and
move them to the Capture Interfaces box.
Select IPv4 in the IP Version field.
Select User Defined and enter 172.16.1.33 in the Host IP field.
Select Save data to onboard storage only (if the displayed available size is enough). Click
Capture.
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