I'm pretty new at this so please forgive me if some parts of my explanation are lacking.
Thank you in advance for taking your time to read my question.
What I want to do:
Access a server from a remote terminal via an ISDN connection and windows remote access.
My (simplified) environment:
The environment consists of a remote terminal an ISDN router, a switch, and a server. The remote terminal and the ISDN router will only be used to access the server and nothing else. Changing any IP or any settings on the switch are out of the question.
[Remote Terminal] 18.104.22.168/24 | "ISDN connection" | [Router] 192.168.1.10/24 | "Network segment A" | 192.168.1.254/24 [L3 Switch] 192.168.2.254/24 | "Network Segment B" | 192.168.2.10/24 [Server]
The switch between network segment A and B blocks all packets to and from IPs that aren't local (including the remote terminal's) so the remote terminal can't connect to the server.
Would a 1:1 NAT rule (22.214.171.124/24=192.168.1.10/24) set on the router be a possible choice to solve my problem?
Would setting a NAT rule for the routers only internal IP have any caveats I should be aware of?