Port forwarding not working.

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AKruchov
AKruchov Posts: 4
Friend Collector
in Smart Home Product
For some reason, this port is not being forwarded correctly. Even though It's set up perfectly, Please help. I'm on the latest firmware, and have a VMG8825-T50 router.

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  • tonygibbs16
    tonygibbs16 Posts: 842  Guru Member
    First Anniversary 10 Comments Friend Collector First Answer
    edited May 2021
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    Hello @AKruchov

    Do you have anything in the log file to show if the VMG8825-T50B firewall is blocking the Port Forwarding Test or not?
        - it will be messages like the following (I have obscured my public IP address under DST on purpose)::
    22/05/2021 03:30:17192.168.1.1May 22 03:30:23 kern.alert kernel: IN=ppp2.3 OUT= MAC= SRC=104.149.174.234 DST=51.x.y.z LEN=445 TOS=0x00 PREC=0x00 TTL=52 ID=19121 DF PROTO=UDP SPT=5213 DPT=55535 LEN=425 MARK=0x10000000
    		00-00 00:00:000
    		0

    and the DPT in your case would be DPT=1359

    If it is a log message, then I think that the set-up of the VMG8825-T50B is not letting it through.

    Kind regards,
         Tony
  • AKruchov
    AKruchov Posts: 4
    Friend Collector
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    tonygibbs16 said:
    Hello @AKruchov

    Do you have anything in the log file to show if the VMG8825-T50B firewall is blocking the Port Forwarding Test or not?
        - it will be messages like the following (I have obscured my public IP address under DST on purpose)::
    22/05/2021 03:30:17192.168.1.1May 22 03:30:23 kern.alert kernel: IN=ppp2.3 OUT= MAC= SRC=104.149.174.234 DST=51.x.y.z LEN=445 TOS=0x00 PREC=0x00 TTL=52 ID=19121 DF PROTO=UDP SPT=5213 DPT=55535 LEN=425 MARK=0x10000000
    		00-00 00:00:000
    		0

    and the DPT in your case would be DPT=1359

    If it is a log message, then I think that the set-up of the VMG8825-T50B is not letting it through.

    Kind regards,
         Tony
    Where is the log file stored exactly? 
  • tonygibbs16
    tonygibbs16 Posts: 842  Guru Member
    First Anniversary 10 Comments Friend Collector First Answer
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    Hello @AKruchov

    Please look under System Monitor -> Log -> Security Log on the Zyxel device web access.

    Kind regards,
        Tony
  • AKruchov
    AKruchov Posts: 4
    Friend Collector
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    tonygibbs16 said:
    Hello @AKruchov

    Please look under System Monitor -> Log -> Security Log on the Zyxel device web access.

    Kind regards,
        Tony
    There is nothing in the logs. It's blank.
  • tonygibbs16
    tonygibbs16 Posts: 842  Guru Member
    First Anniversary 10 Comments Friend Collector First Answer
    edited May 2021
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    Hello @AKruchov

    If it is not showing up in the logs, then maybe the zyxel device is passing it through.

    If you have a PC that you can run Wireshark on connected to a LAN port, then you could see if it getting through.

    Or raise the firewall level on your Zyxel device to medium level, and see if the Zyxel device then shows a block in the logs.
         - to see if it is getting to your Zyxel device at all.

    Kind regards Tony

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