In my current scenario, I have 2 ISP providers connected to my Mikrotik Router. One ISP (Cable Operator) allows the cable-modem to operate in bridge mode, hence the Mikrotik receives a real IPV4 address on this port. The other ISP (Fiber GPON operator) does not allow the ONU to operate in bridge mode, hece the Mikrotik receives a reserved IPV4 address on this port (192.168.0.100), configured as the DMZ for the ONU internal LAN (192.168.0.0/24). Summary:
- Internal LAN: 192.168.1.0/24;
- Cable Operator WAN network: 177.142.96.0/20;
- Fiber Operator WAN network: 192.168.0.0/24
Thanks and Regards
Mauricio