Chapter 6 Maintenance
ZyWALL USG 20-2000 User’s Guide
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Figure 51 Packet Capture File Example
6.11 How to Use Packet Flow Explore for Troubleshooting
Use the packet flow explore function to help resolve routing or NAT problems. For example: an
interface suddenly goes down, you configure a policy route but packets do not go through the
configured interface or go through another route.
The Maintenance > Packet Flow Explore > Routing Status screen displays the ZyWALL’s
current routing flow. Click a function box to get the corresponding active routes. The ZyWALL routes
packets in the order of the flow as shown from left to right. Once a packet matches the criteria of a
route, the ZyWALL routes the packet and does not perform any further routing checking.
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