Router question, about tactic

My manager ask :
I only use PPPoe to connect Internet, Other people use Cable Modem.

My manager IP is 192.168.100.33 , RouterOS IP is 192.168.100.1

Our Local is 192.168.100.0/255.255.255.0

How to finish my manager question?
can you help me ?

Sorry My english is very poor.