I have a host with three network interfaces. Each interface is connected to a separate network and one of those networks contains another gateway that can reach the outside world. My goal is to have all networks communicate with each other through the host (they must communicate through the host as there is no other network path between the networks).
Host:
- 192.168.50.1/24
- 192.168.60.1/24
- 10.50.52.110/23
Gateway:
- 10.50.52.1/23
Client1:
- 192.168.50.2/24
Client2:
- 192.168.60.2/24
Currently, the host can ping everything. Client1 and client2 can ping all interfaces on the host as well as each other, but neither client can ping 10.50.52.1 or reach the internet. The three networks can only reach each other through the host. Below is the routing table of the host. Any comments or suggestions would be appreciated. I'm especially confused by how the clients are able to ping each other but not 10.50.52.1.
root@Host:~# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.60.2 192.168.60.1 255.255.255.255 UGH 0 0 0 eth2 192.168.50.2 192.168.50.1 255.255.255.255 UGH 0 0 0 eth1 10.50.52.1 10.50.52.110 255.255.255.255 UGH 0 0 0 eth0 192.168.50.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.60.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2 10.50.52.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0 0.0.0.0 10.50.52.1 0.0.0.0 UG 0 0 0 eth0 root@Host:~# 
