Access private IP through WAN interface from LAN?

I am newbie with MikroTik and networks, so bear with me.
Hardware: RB4011iGS+
RouterOS: 6.48.3

My network situation:
UFiber GPON ONU (192.168.1.200, bridge)<->Switch (192.168.1.210)<->MT ether1 (DHCP, public ISP IP)<->Internal LAN
Internal LAN is: 10.0.0.0/24

Is it possible to access UFiber GPON ONU and Switch configuration via web from the internal LAN?
If answer is Yes, how to do that?
Thanks a lot!

Simple Answers are

  • isolate the L2 connection from GPON-Module port, via Switch to MT-4011 in a VLAN to use the physical port-connection between Switch and MT as trunk ports, or
  • just use a second port on the MT-4011 for the 192.168.1.0/24 connection/route

…also configure Firewall according to your level of security (externality/internality of 192.168.1.0/24 net).

For setting up VLANs, read this: http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1