i have created client program(native code using sockets) in android which is running on ubuntu (which is on virtual machine in windows xp), i am trying to send data to http server in host machine (i.e WIN XP)

this client program is using sockets to send data
i am using host ip address as destination address, to send data

my ubuntu ip address is shown 10.0.0.2
my host address is 1.2.3.4

whenever i send a data send is successful

but server in host machine not receiving the data


please help me what can i do find out who is reciving?
and how send data to server running on the same machine?

(i can connect to internet from android emulator)

The client program will be running on a different network address range(which is also virtual) and not exposed to your host machine as that will be on a different network range.
Does your virtualization software allow you to expose the network connection somehow?

from my virtual machine i can able to browse , ping host address ( 1.2.3.4)

I would recommend installing a program like Wireshark which is a network protocol analyzer that you can use to watch where all the packets are going.
http://www.wireshark.org/