RPC problem

Hi all,

I’m working on RPC program in ubuntu linux using rpcgen. I encounter a problem when I establish a server and client , when client sends a request to the server ,no response there .
Although every thing seem is working properly , I check rpcinfo ,it works fine.

I tried to wireshark ,here is the screen shot ,I don’t know ,it seems something relates to port #!

Please help!

Thanks
n.a.s