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    3/25/2018 2:17 pm  #1

    WoobaGooba
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    Registered: 1/24/2016
    Posts: 101

    Expedition and IPv4 broadcast / WiFi AP issues ...

    Folks

    I've a sensor (barometric pressure) sending a UDP NMEA 0183 XDR sentence periodically to its IPv4 subnet broadcast address.    I've tested this with 4 WiFI Access Points, using the same Expedition/PC which has a single Network 0 configured.  Wireshark always sees the sensor bcast regardless of the AP being used.

    Expedition does successfully receive the sensor bcast when used with ...
    - GoFree AP  192.168.0.0/255.255.0.0.
    - Meraki AP 192.168.128.0/255.255.255.0.

    Expedition does not receive the sensor bcast with ...
    - Linksys AP 192.168.1.0/255.255.255.0.
    - Iridium GO 192.168.0.0/255.255.255.0.

    Any ideas?
     

    Last edited by WoobaGooba (3/25/2018 2:18 pm)

     

    4/15/2018 5:15 pm  #2

    WoobaGooba
    Expert

    Offline

    Registered: 1/24/2016
    Posts: 101

    Re: Expedition and IPv4 broadcast / WiFi AP issues ...

    Problem solved.  Windows Defender Firewall.  A firewall rule for the Expedition application was required to open the port used by the sensor (NMEA 0183's assigned port 10110).  Now works fine for all the 4 APs tested.  Lesson relearned ... if the data is showing at the interface (Wireshark) and Expedition is showing to be properly bound to the configured port (netstat), then a firewall is likely blocking the data stream.  Cheers
     

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