Not sure where to place it in this forum.

I got a qhora321 and multiply MAC devices

and have this port interface settings.

LAN
Port    Interface Name      IP Address      Gateway
2       Atlanta_Services    10.19.1.4/24    10.19.1.4
3       NASSER_Services     10.19.2.4/24    10.19.2.4
…..

WAN
1       Gate                10.19.0.2/24    10.19.0.3 ( modem)

From all the ports/devices I can connect the internet.

However I want to have from ‘Atlanta_Services’ reach one device ( or all if not possible) at NASSER_Services.

On my mac if I do a LAN scan from 10.19.0.1 – 10.19.2.254 I see al the devices.

But if I want to connect with the FInder ( file browser ) I can’t find the 10.19.2.200 device (static address) ( Apple-K ) or with a browser ( Safari, FireFox chrome e.t.c ); or what device in the 10.19.2. range.

So I need a route in the routing table.

The tabel created by QHora after setting things up is:

Routing Table

Destination Subnet Mask     Gateway     Metric  Interface
default     0.0.0.0         10.19.0.3   99      Gate - Port 1
default     0.0.0.0         10.19.0.3   100     Gate - Port 1
10.19.0.0   255.255.255.0   0.0.0.0     0       Gate - Port 1
10.19.1.0   255.255.255.0   0.0.0.0     0       Atlantis_Services - Port 2
10.19.2.0   255.255.255.0   0.0.0.0     0       NASSER_Services - Port 3

So I want to do this.

Destination:        10.19.1.0
Subnet Mask:        255.255.255.0 (/24)
Next hop:           IP Address  10.19.2.1
Metric:             10
Description:        Route to 10.19.1.0/24

I get – The entered IP address (10.19.1.4/24) or its subnet mask is conflicting with “Atlantis_Services – Port 2”.

Destination:        10.19.1.0
Subnet Mask:        255.255.255.0 (/24)
Next hop:           IP Address  10.19.2.1
Metric:             10
Description:        Route to 10.19.1.0/24

I get: The entered IP address (10.19.2.4/24) or its subnet mask is conflicting with “NASSER_Services – Port 3”.

What do I wrong?
Any ideas or help?