How can I get neighbour cache from Interface?

[ruiqurm]

Hello, I'm new to smoltcp and am trying to retrieve a MAC address from a given IP address. It appears there are no direct methods in smoltcp for querying MAC addresses. However, I'm considering an indirect approach. I understand that sending any packet prompts a MAC address lookup, which means I could theoretically send a random UDP packet to cache the MAC address. But, how can I then access this cached MAC address? I've reviewed the documentation for the Interface but couldn't find a method to do this. Any suggestions or guidance would be greatly appreciated. Thank you!