Access to the "older" network using the asus rt-n12 router?

Question

Computer networks

Hello!
Such problem:
There is a router (internal ip 192.168.1.254) with the connected Internet and a local area network. A router is inserted into his lan (wan 192.167.1.67; internal ip 192.168.2.1; lan-dhcp) to the room to which the PCs are connected
. 192.168.1.0 by entering ip-addresses, including entering the interface of the "main router"

Answer 1

specify the route to the network 192.168.1.0 through the WAN interface with the address 192.167.1.67. how it is done in the web muzzle, or what's on your router, you better know.
probably something like: "static routes". specify target - 192.168.1.0/24, gateway - WAN interface or IP 192.167.1.67.
and NAT must be disabled.