I'm trying to setup eth0 with a static IP address so the router knows what computer is the DMZ host and never has problems with mis-matched IPs.
The connection works file when I set it to automatically configure DHCP. What I want to do is manually choose 192.168.1.110 as my IP and keep it like that. Here is what I enter in system-config-network
IP Address: 192.168.1.110
Subnet mask: 255.255.255.0
Default Gateway: 192.168.1.1
That IP isn't in use. Whenever I change it manually, I save the changes, deactivate the device and reactivate it. After that, I don't have any connection whatsoever until I go back to the option to automatically configure DHCP.
Why is this?