Mar 11 2022 06:24 AM
Hi!
We are using Checkpoint firewall. UDP ports 3478-3481 are open and using updateable objects to allow STUN traffic.
The question is about UDP ports like 10400, 10500, 10600, 10700 etc. We can't open these ports and still there is traffic from Microsoft that go through these and being dropped because this traffic is trying to talk directly with the firewall, i mean it is the Stealth rule . Check
This traffic source is from IP addresses ranges like 52.114. or 52.112 and being droped.
Can this traffic affect the quality of Teams video or audio meetings because we had some people that had problems with that?
I can't find any documentation from Microsoft that talk about these UDP ports!
Mar 12 2022 05:24 AM
Mar 14 2022 01:33 AM
I still can't find explanation to why UDP ports like 10400 are used. Are these ports needed to be open or not? Every packet which comes to these is dropped by my firewall!
Mar 14 2022 07:56 AM
Mar 14 2022 08:01 AM