PowerProtect: No se puede implementar el motor de protección de VM Direct debido a una falla de inicialización

El dispositivo PowerProtect Data Manager se utiliza para proteger el entorno de vSphere con la solución VM Direct Engine. La implementación del motor de VM Direct en un clúster de zona desmilitarizada (DMZ) falla durante la fase de inicialización. El estado del trabajo del sistema muestra lo siguiente:

ProxySession unsuccessful during initialization. Unable to deploy and verify the vProxy my-proxy.my-domain.com. Unable to query vProxy status after 'Deploy'. Request unsuccessful. Unable to connect to External vproxy 'my-proxy.my-domain.com' on port '9090', the host service is not running.

Action : Deploy
TransportMode : HotaddPreferred
Vproxy : my-proxy.my-domain.com
Error : ProxySession unsuccessful during initialization. Unable to deploy and verify the vProxy my-proxy.my-domain.com. Unable to query vProxy status after 'Deploy'. Request unsuccessful. Unable to connect to External vproxy 'my-proxy.my-domain.com' on port '9090', the host service is not running. (0)
ProtectionType : VM
VproxyStatus : Failed

La variable /var/log/brs/vmdm/vmdm.log Muestra:

YYYY-MM-DD20:37:02.229Z ERROR [] [vproxyMonitor] [][][][TRACE_ID:b28dabec92e4fcae][] [c.e.b.v.v.s.VPEProxyService.updateTask(809)] - Update VM Direct Protection Engine failed 40be4802-972d-416f-b131-43890b6c32ac ManagedProxySession(state=Failure, id=32a99bf2-1c6e-47e7-aff1-4b26b7026cc8, error: code=0, text=ProxySession unsuccessful during initialization.  Unable to deploy and verify the vProxy my-proxy.my-domain.com.  Unable to query vProxy status after 'Deploy'.  Request unsuccessful.  Unable to resolve External vproxy 'my-proxy.my-domain.com' IP address in DNS server(s).)

El dispositivo PowerProtect no tiene acceso al motor de VM Direct por medio del puerto 9090.

admin@ppdm:~> curl -v my-proxy.my-domain.com:9090
*   Trying 192.168.9.131:9090...
* connect to 192.168.9.131 port 9090 failed: No route to host
* Failed to connect to my-proxy.my-domain.com port 9090 after 18548 ms: Couldn't connect to server
* Closing connection 0
curl: (7) Failed to connect to my-proxy.my-domain.com port 9090 after 18548 ms: Couldn't connect to server
admin@ppdm:~>