Access servers behinf firewall by local clients
I have two SG1100 connected in series:
INTERNET | V PRIMARY SG1100 -> SWITCH -> GENERAL CLIENTS | V SECONDARY SG1100 -> SWITCH -> SERVERS
Probably not the best setup but options are limited.
The Primary, connected to the internet, connects all general machines.
The Secondary, connected to the Primary, connects all the servers for an additional level of security.
I managed to forward connections from an external WAN connection through the Primary to the Secondary to a PLEX server as per the following 'How To' https://portforward.com/help/doublerouterportforwarding.htm and all works well...
Unfortunately, I'm having problems trying to forward local clients on the Primary to the servers on the Secondary.
I'd like to access my PLEX server by other devices on the Primary and realise that I need other ports-forwarded (i.e. https://support.plex.tv/articles/201543147-what-network-ports-do-i-need-to-allow-through-my-firewall/) but I don't know how to port-forwarding correctly for local clients. All infrastructure IP addresses are static
Can someone direct me to the correct manual page / external link / give example / or menu option location?
Finally got the right option.
Had to use NAT + Proxy.