Communicating with a external application through tcp/ip

Question

Hi all,
I have set up a procedure to communicate with a external application. I have used util_tcp to set up this connection. The process I undertake is i send some packets to a remote port XXXX on a particular ip address .
i.e util_tcp.open_connection(host_ip_address,host_port).
I then wait for data coming back, from this external application.
I then close the connection.
All is fine when I execute this procedure from a AIX server, I get all the required packets back.
But when I execute this procedure from a windows server I manage to send packets of data out to the remote port but i can't read data from the port. When i telnet to the remote machine i could see the packets being sent back but i just can't seem to reas the data/packets. the utl_tcp.available is zero. BUT when i run the same procedure from aix server it works fine.
If anyone can help, much appreciated.
thankyou
nahim

Answer 1

Sorry I think I may have not been very clear about what I am asking.
On AIX Server:
Has Oracle Database 8 on it.
-I connect to remote port 7097 - c := utl_tcp.open_connection('XXX.XXX.XXX.XX',7097,null,null,null,null,null,null);
-I send out packets to External App(Schedular) through above connection -      li_return_value := utl_tcp.write_line(c, lc_ClientPacket);
-Schedular sends back Packets through above connection
-Oracle Database 8 checks for data on port
utl_tcp.available(c) > 1
-Data is available so start to read data
lc_RawData := UTL_TCP.get_text(c,li_lenOfRawData);
On Windows Server:
Has Oracle Database 9i on it.
-I connect to remote port 7097 - c := utl_tcp.open_connection('XXX.XXX.XXX.XX',7097,null,null,null,null,null,null);
-I send out packets to External App(Schedular) through above connection -      li_return_value := utl_tcp.write_line(c, lc_ClientPacket);
-Schedular sends back Packets through above connection
-Oracle Database 8 checks for data on port
utl_tcp.available(c) > 1
- BUT THE DATA IS NOT AVAILABLE so cannot read data. Its as if the packets vanish in thin air or windows is not liking the packets.
When telnet to the remote machine I can see the packets i send going into the port and the packets coming back from sideinwder ready for me to read. But for some reason I can't read.
Its a very odd problem, if the eact same code works from AIX, why not windows. I thought it might be something between Oracle database and windows that needs to be set up. But how can any configuration on the oracle database or the windows platform effect communication on the remote host.
Any ides please help
Thankyou for the help provided so far, much appreciated.
Nahim