OAK-1 POE Ports to Open

gbanuru

Hi, I am able to view the OAK-1 POE feed when the Ubuntu firewall is disabled. When the firewall is enabled I do not see any depthai devices when running depthai.Device.getAllAvailableDevices(). I have allowed ports 11490/tcp and 11491/udp to the firewall (found from: https://docs.luxonis.com/en/latest/pages/tutorials/getting-started-with-poe/) but it is insufficient. Are there additional ports in use? Thanks! Edit: It seems that the UPD port used is constantly changing - is there a range of UPD ports used?

themarpe

gbanuru host uses an empheral port, which gets auto-assigned, to send out the broadcast and receive back the responses to. If receiving to that port is blocked then no responses will be visible, yielding to being unable to detect the devices.

I'm not completely sure how firewalls usually handle this situation - I think its similar as in TCP where after the connection is established, temporary ports are assigned afterwards that represent the actual connection.

Maybe you shouldn't block the incoming UDP traffic to 1024-65536 range (empheral / temporary ports assigned by OS)?

gbanuru

Thanks!