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3/25/2018 2:17 pm  #1


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


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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