arp timeouts on VLAN cause connection interruptions

[allebone]

One thing I forgot to mention is that from the client I am noticing the issue (cant ping opnsense from it because opnsense loses arp entry) is that an rdp connection I have open to another pc on the network does not drop. Both the opnsense and the rds server I connect to are plugged into the same switch. So while rds server is able to keep arp entry, opnsense cannot but is plugged in exactly the same.

[allebone]

Since I dont know how to fix this correctly, I have added troublesome clients to /etc/rc.conf so there is a static arp entry on reboot on the opnsense box. This fixes the problem. Unsure how to resolve the root cause though. If the opnsense never forgets the arp entry, there is no dropped traffic though, so this is how I will leave it until someone has a better idea.

[devilkin]

If you're using Ubiquity gear, checkout this post:

https://www.reddit.com/r/Ubiquiti/comments/mlit54/problems_with_broadcastmulticast_traffic_on_uap/

[allebone]

Thanks although did not actually apply in my case, good find though :)