RPC response reception

Hi,

I am running two RPC servers in a linux box where two different RPC
program numbers are registered in each servers. RPC server A gets an
asynchronous call from a client, after processing, RPC server A makes
another client_call using clnt_call to RPC server B. A function
registered to that particular RPC prognum executes in RPC server B and
returns a response structure. But I am not seeing the response
structure values at the RPC server A side.

Client----> RPC A ---> RPC B

In RPC A, following is the code:

clnt = clnt_create("host", PROCB, 1, "udp")
clnt_stat = clnt_call(clnt, procnum, inproc, inargument,
(xdrproc_t)xdr_void, outresult, timeout)

In RPC B, following is the snippet of the code:

register SVCXPRT *transp;
transp = svcudp_create(RPC_ANYSOCK);
svc_register(transp, PROCB, 1, create_response, IPPROTO_UDP);
svc_run();

PROCB(struct svc_req *rqstp, register SVCXPRT *transp)
{
switch (rqstp->rq_proc)
case 1:
_xdr_argument = <>;
_xdr_result = <>;
break;