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Sun RPC ALG

Sun Microsystems Remote Procedure Call—also known as Open Network Computing Remote Procedure Call (ONC RPC)—provides a way for a program running on one host to call procedures in a program running on another host. Because of the large number of RPC services and the need to broadcast, the transport address of an RPC service is dynamically negotiated based on the service's program number and version number. Several binding protocols are defined for mapping the RPC program number and version number to a transport address.

J-series devices running JUNOS software support the Sun RPC as a predefined service and allow and deny traffic based on a security policy you configure. The Application Layer Gateway (ALG) provides the functionality for J-series devices to handle the dynamic transport address negotiation mechanism of the Sun RPC and to ensure program number-based security policy enforcement. You can define a security policy to permit or deny all RPC requests, or to permit or deny by specific program number. The ALG also supports route and NAT mode for incoming and outgoing requests. The following SUN RPC topics are addressed in this section:

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