Flooding of broadcast ip with UDP 20002 calls
I have an MR600 router connected via a switch to a pfsense router.
Pfsense IP is: 10.0.1.2 and MR600 IP is: 10.0.1.1
My subnet is 255.255.255.248 (/29)
If I connect the router directly to the pfsense port all is fine.
But I want to have the router closer to the window so I need to use my LAN plug in the house so I have to use a network switch.
When I use the switch I start getting a flood of messages on the broadcast address (remember it's /29 hence my broadcast is 1.0.1.7) - I have tried with a /24 network and I get the same result.
This shows up in pfsense as utilising 10Mbits of constant traffic.
The port is UDP 20002:
I'm attaching the packet capture.
I don't know if this a MR600 service that is cause all this traffic and can be quickly turned off.
Note that I had with the same config another 4G router (got the MR600 because it was 4G+) and didn't have any issues with my network setup.
Thanks!