basically one of the user is not been able to connect to a port , so i want to verify weather he is reachinging the server or is blocked on firewall

for this kind of troubleshooting I would use either traffic capture on the PIX or even a sniffer (e.g. wireshark). You can SPAN the port on the switch and filter the traffic capture by ip address.

On the pix you can also use sh local-host command, but that info would guarantee that all is working OK.

Is there any other why through which i can monitor the IP's. Using SYSlog etc