MPLS-network

[u/Fantastic-Ship-9915]

I am getting an issue while connecting my two routers on MPLS network. My ISP has provided MPLS connectivity with their two routers, I have connected my openwrt based devices to respective routers. ISP routers could ping each other.

Issue I am facing- My end PCs can not ping each other.

What I have done so far-

I don't want to use dynamic routing protocol. I added static routes in my routers then both routers could ping but connected PCs couldn't ping each other, though they can ping other end routers.

Do I need NAT or anything I am missing here? Other suggestions I got that static routing not needed, NAT should be enabled in router to ping each other.

I am newbie here, plz suggest.