I have tried the static routes as suggested , but the problem persists.
The PC with IP 172.22.150.190 is able to ping the Zs with IP 172.22.128.2 but not able to access the WAN gateway 10.10.10.1 and when I did the Check IP.
I got the ARP error,
WARNING : the host 172.22.150.190 is not directly connected on the Eth01 but is reachable via the gateway 172.22.128.1 ( Core Switch). ARP Protocol is a Layer 2 Protocol and it cannot be routed by routers.
Please suggest ,
I guess its a routing issue, whether RIP shall be enabled.