The rpc_udp state engine is used for RPC protocols that use the UDP protocol. Normally, a service definition for such a protocol requires both an rpc_udp and pmap_udp state engine entry. The discriminator for the rpc_udp state engine is the RPC program number for the service.
The rpc_udp state engine has the following parameters:
Response timeout in seconds - Specifies the time to wait for RPC responses. -1 specifies to wait forever (default = 60 seconds)
Number of expected responses per request (default is 1)
Flag value - Specifies whether RPC responses must come from the same host or port that the RPC request specified. If the 0x01 bit is set, RPC responses from a different host than the request are allowed. If the 0x02 bit is set, RPC responses from a different port than the request port are allowed (default = 0)