Hello
I have noticed that discovery doesn't work on bonded interfaces.

I have CCR2116 with 7.9.2 and a bonding interface, hardware offloaded in bridge and the ip neighbours discovery fails to discover devices.
I have tried also the sofware bond without the bridge configurations, and also doesnt work.
On the same router, I disable the bonding, and the neighbours appears immediately!

Configuration? (Ignoring if is or not one switch / bridge / firewall rule that block discovery)

no firewall rules on the bond interfaces

/ip neighbor discovery-settings
set discover-interface-list=!dynamic

interface list none

if bonded interfaces are considered dynamic... the discovery do not work.

Try this:
/ip neighbor discovery-settings
set discover-interface-list=all

Or create your own interface list where apply the disocovery, like I do.

I have tried with all.
no changes.

Conta anche l'altro lato

adesso non ho niente sottomano per verificare.

Lo so

ma non funziona!
Se metto ALL, e cavo il bond, funziona immediatamente.
Nei router clienti è impostato su !dynamic ed è sempre funzionato.
metto all e non cambia nulla.

Also with 7.11.2, the discovery don't work on bonded interfaces.
If I remove the bond, it works immediately.