Problem to ping devices in blue network

Networking
1

Hi!

I am trying to set up an NFS share for devices in the blue network (WiFi). The NFS server is located in the green network. The picture shows my network setup.

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I currently have the problem that I cannot ping the devices in the blue network (repeater = 192.168.150.2 and laptop = 192.168.150.110) from the server with the IP address 192.168.200.10. From the PC with the IP 192.168.200.21 I can ping the repeater and the laptop. The server works in headless mode, so I establish a connection from the PC (192.168.200.21) via SSH for configuration and ping. This should not be a problem.

The Green Network should reach the Blue Network without any problems! I have not blocked the server in my firewall rules!

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I would be pleased if you could help me find the error.

2

Be careful with pings and Windoze machines. The Windoze firewall generally blocks pings from outside its own subnet, so it is best to temporarily drop the firewall while testing, or set up a an exception in the firewall for the green subnet.

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3

All devices run on Linux!

Server = Debian with Open Media Vault
PC and Laptop = Manjaro

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4

Looks like NIC1 is set as default route on your PC. So a connection to a blue IP net runs via orange to the IPFire and is blocked.

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5

Hi @arne_f, with the NIC setup was a good hint!

I figured out that ip route get 192.168.150.2 use the wrong NIC.

I add following setup to the server route configuration (no IPFire configuration) to solve the problem:

sudo ip route add 192.168.150.0/24 via 192.168.200.1 dev enp5s0

On IPFire I create a firewall rule to allow the connection from the blue network to the green.

grafik

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