Good Morning,
I was successfully able to load OpenWrt using putty and ssh onto a linksys EA6350. I've been playing around with LUCI a bit but I will admit, this stuff is over my head...... So then I tried playing a little after some reading with ssh cmd lines.....and I keep getting permission denied (using /etc/config/network for example).
I've setup two networks, call them 2.4ghz and 5ghz. Can someone please please please walk me through how to change them both to IP addresses of 10.0.0.x, I want to run a FTP server for the Usb port on the router, and I don't want the 2.4Ghz radio to have any internet access (so it's a local-only network) while the 5ghz radio has both local (namely FTP) access AND internet.
I think you need first to break the LAN bridge, then assign the 2 Wifi to their own interfaces and firewall zones.
Under the interface you can assign the IP address you please for each Wifi.
Then with firewall zones you can allow or deny (default) the traffic between zones.
I guess you are trying to execute something like "/etc/config/network", and that is not going to work, because that is a configuration file, not and executable file. You need to edit that file, for example with "vi /etc/config/network" (or your editor of choice).
If you are running OpenWrt 19.07 snapshot (which includes LuCI) on a EA6350v3, and SSH is working but you have lost LuCI for some unknown reason, the easiest way to resolve the issue, is perhaps to perform a simple reset.
While router is up and running (SSH, wifi, etc)
Press and hold in the Reset button in for exactly 10 seconds.
Wait a minute or two after releasing the button, and all openwrt settings will have returned to defaults. Log in using LuCI if you have 19.07-snapshot, otherwise, you will have to download and install the package.
@sassriverrat You have opened two threads for the same issue. It is not appropriate and can cause confusion. Decide which one you want to keep open and close the other one.