Hi. I have mikrotik1 and mikrotk2 connected by cable. I have remote control to mikrotik1. On mikroitk2 : no ip address on any interface, cdp/lldp/mndp disabled, mac telnet enabled,no physical access to routerborad. Is there any way to discover mac address of mikrotik 2 to access it by mac telnet?
It depends. When that device somehow tries to obtain info via the network, e.g. DHCP client, IP Cloud client using default route, etc it may be possible to find it by doing packet trace on the port on mikrotik1 where mikrotik2 is connected.