I am trying to allow RDP into a box connected to a cascaded switch. This used to work when the box was connected directly to the managed switch off my Sophos. But its recently been moved to a location with only one line. Hence the 2nd switch.
Interwebs [Managed Switch] ---------> [Unmanaged Switch]------> Box
The box gets a DHCP lease from the Sophos fine. It can ping the Sophos and browse the web. Other boxes on the network can ping it and vice versa. The only problem I am running into is allowing RDP in from the outside. I don't believe its an issue with my DNAT rule or filter as I said before it was working fine when connected to the Managed switch. Do I need to also set up a SNAT rule or masquerade rule for this to work?
Other idea:
I recently put a 4 port nic into the Sophos box. I was thinking I could possibly set up a second LAN interface and plug it into the Unmanaged switch for this to work?
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