Have you tried ping from a host in the local subnet to a host in the remote subnet instead of testing from the router. When you test from the router you need to specific the LAN subnet to use.
/bin/ping -I <local subnet> <remote subnet>
Have you tried ping from a host in the local subnet to a host in the remote subnet instead of testing from the router. When you test from the router you need to specific the LAN subnet to use.
/bin/ping -I <local subnet> <remote subnet>