How to clear and query the firewall and NAT traffic table

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Run the reset session all command in the system view to clear the firewall and NAT traffic table information.
Run the display session command in any view to query the firewall and NAT traffic table information.

Other related questions:
Clear and query the NAT flow table of a firewall on an AR router
On an AR router, run the reset session all command in the system view to clear a firewall and its NAT flow table information. Run the display session command in any view to query the firewall and NAT flow table information.

How do I delete and view the firewall and NAT flow table
Run the reset session all command in the system view to clear the firewall and NAT flow table. Run the display session command in any view to check the firewall and NAT flow table.

Session table query on a firewall
You can query the session table on the web UI and CLI. For the USG6000 series, on the web UI, choose Monitor > Session Table to query the session table and NAT detailed information. For the USG2000&5000 series, on the web UI, choose Firewall > Monitor > Session Table to query the session table. For the USG2000&5000 and USG6000 series, you can run the display firewall session table command to view the session table, or run the display firewall session table nat command to view the NAT session table.

Query of session information of a specific protocol
For the USG2000&5000 and USG6000 series, you can run the display firewall session table [ verbose ] protocol protocol-name command to view session information about a specific protocol. The protocol can be TCP, UDP, or ICMP.

Commands for querying routing table information on the firewall
Run the following commands to display routing table information on the firewall: -Display the abstract information about the active routes in the routing table. display ip routing-table -Display the detailed information about the routing table. display ip routing-table verbose -Display the detailed information about the routing table. display ip routing-table verbose -Display the route to the specified destination IP address. display ip routing-table ip-address [ mask | mask-length ] [ longer-match ] [ verbose ]

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