Before I start, sorry for my bad english.
Need suggestion or solution for my problem.
I have PABX Devices and module with IP 192.168.10.0/24, these PABX devices connected through 192.168.10.1 gateway (Cisco).
Also I have SIP Trunk device from the ISP with IP 10.18.31.182/30 these SIP Trunk connected through 10.18.31.181 (SBC).
The Problem is, need to connect these 2 segments IP with Mikrotik (can interact each other) without touching or configuring the Cisco device (192.168.10.1/24) or the SBC (10.18.31.181/30) .
What i've done, connected :
The eth2 with 10.18.31.182/30.
The eth3 with 192.168.10.200/24.
Need help and suggestion for the routing and the firewall thing.