Is there a script that would find a duplicate of two or more mac addresses in Mikrotik's arp table?

Question

Mikrotik

Is there a script that would find a duplicate of two or more mac addresses in Mikrotik's arp table? and then logged. Bottom line: They are difficult to find with the eyes, since arp consists of at least 1000 entries in my case.

Answer 1

In general, the appearance of two identical poppy addresses on different ports within the same broadcast domain is a collision for ethernet (caused by a configuration error or a loop).
In your case, as far as I understand, you are trying to immediately nail each issue of the address into DHCP, which is strange in itself, why do you need this? If for the sake of security - switch DHCP to static only mode, if for the sake of eliminating these same collisions - then DHCP is not your helper here (you need a managed network), if for the sake of saving IP addresses - quit this venture, use the DHCP bundle (in name protected mode) + DNS, if for the sake of billing is also a strange way to count traffic - use vlan or pptp at worst (if the network is not managed. Which seems to be the case in your case).
Tell the problem you are trying to solve with this approach (and this is not about a broken script).