Try asking again with more details. What are you trying to accomplish? I read your question several times and I don’t understand it, I’m afraid. “2 network in same network” doesn’t make sense to me.
ok this is my network, i have 2 account PPPoE from ISP
my routers are in public 2
the mikrotik-2 is configure to load balancer the routers to clients.
my question is (how can connect direc the routers to IPS in she some network line) but I’m handing pppoe and the isp handing pppoe (so I do not want to mix the netrowk)
Your network is madness. The answer is to fix it not look for extra rolls of duct tape or crazy workarounds.
Router 1 and 2 have ports on the a network segment, that is also part of their upstream. what??
if you are trying to pppoe to the ISP from some router deep inside the LAN somewhere, EoIP link from there to the mikrotik (1) and use PPPoE client then.