Puedo correr unforfiles comando concmd /c, como se esperaba

C:\>forfiles /c "cmd /c ping /a"
IP address must be specified.

Sin embargo, si elimino elcmd /c, ya no reconoce ningún argumento, solo el comando base

C:\>forfiles /c "ping /a"
Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
            [-r count] [-s count] [[-j host-list] | [-k host-list]]
            [-w timeout] [-R] [-S srcaddr] [-4] [-6] target_name

¿Debo usarcmd /c, incluso con comandos externos en la RUTA?