How to fix IPv4 neighbor Table Overflow

RouterOS General
1

Hello Everyone

when i connect a dvr to the Mikrotik port it gives me this Error please see attached picture and CPU Spike to 50 + percentage and also Internet goes down

Please Help
Screenshot_1.png

2

Anyone can Help will be Appreciated

thanks

3

So, have you increased it? IP → Settings → Max Neighbor Entries

Also, check IP → ARP when problem appears

4

Thanks a lot I will try it

5

the problem is still exist

Do i need to change something else on this IP settings
Screenshot_1.png

6
7

The problem only occur when i connect DVR on one of the interface on Mikrotik
Do i need to change some settings on DVR ???

When i Disconnect DVR every thing come to Normal

8

what traffic is coming from the DVR? maybe you are able to sniff it when it is connected.

9

and what happens with ARP table when you do that? we’re not telepathists

10

OK I will take a screen shot of ARP table when I see the issue again

Thanks

11

also, what packets is VCR sending would be useful, as you can either filter them out or we can adjust neigbour detection.