Hello Javith, It looks like PAN FW is connected with a Modem and that modem connected with ISP. There could be many reasons, while traffic was not through . Hence i would suggest you below mentioned steps to narrow down the problem, if packets are getting dropped at PAN FW: ------ Verify the ARP table, there should be a valid entry for the next hop ISP router. ------ Check if firewall is building new sessions for incoming traffic. Make sure the firewall not reached to the max limit. CLI command >show session info >show session meter ------ Verify the real time session in the CLI by using '>show session all filter source IP_ADD_OF_THE_TESTING_PC destination IP_ADD_OF_THE_DESTINATION'. ------ Verify the available resources on the PAN firewall > debug dataplane pool statistics > show running resource-monitor >debug dataplane memory status ------ Verify the global counters, if a specific "DRP" counter is increasing rapidly. The command show counter global provides information about the processes/actions taken on the packets going through the device; These counters are for all the traffic going through the device and are useful in troubleshooting issues; like poor performance, packet loss, latency etc. It is advised to use the command show counter global filter packet-filter yes delta yes in conjunction with filters to obtain meaningful data. For more information, you can follow the DOC: What is the Significance of Global Counters? >show counter global filter delta yes >show counter interface all >show statistics ----- If above mentioned steps, doesn't throw any clue, then you can enable FLOW BASIC feature to understand the exact reason behind the failure: ( If packets are getting dropped at PAN FW) > debug dataplane packet-diag clear all > debug dataplane packet-diag set filter match source IP_ADD_OF_THE_TESTING_PC destination IP_ADD_OF_THE_DESTINATION > debug dataplane packet-diag set filter match source IP_ADD_OF_THE_DESTINATION destination IP_ADD_OF_THE_TESTING_PC > debug dataplane packet-diag set log feature flow basic > debug dataplane packet-diag set log feature tcp all > debug dataplane packet-diag set filter on > debug dataplane packet-diag set log on ~~~~~~~~~~~~~~~~ Initiate traffic through the PAN firewall/try to browse a website ~~~~~~~~~~~~~~~~~~~~~~~~~ > debug dataplane packet-diag set log off > debug dataplane packet-diag aggregate-logs > less mp-log pan_packetdiag_log.log For more information, you can follow the DOC: Packet Capture, Debug Flow-basic and Counter Commands Hope this helps. Thanks
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