I got all working except the shared drive issue. I have one shared drive attached to 10.0.0.4 machine.
I can access this machine from 192*** network. some how shared drive \10.0.0.4\share is not accessible. but when I join 10* network same is available. Can some one provide me hint to fix this issue ?
These static route settings I have made on main router. DHCP reservation or proto static .. I have not understood this. On second router there is nothing static under routes.
Now, on the second router: you should be able to disable masquerading on the wan firewall zone. Make sure that internet connectivity still works on the 10.0.0.0/24 network.
Based on the screenshot, I would expect that it would work from an OpenWrt firewall standpoint. So, the next thing to check is the host that has the shared folder -- make sure that it will accept connections from other subnets. Windows, for example, blocks this behavior by default, and you must adjust the windows firewall to allow this to work.