Tns time out windows client , server on linux oracle 11g R1

Question

I have Windows 7 as the host machine and Oracle 11g R1 client installed on it.
I installed VMWare V5.5 (downloaded from oracle site) and then installed Linux on it as guest OS. I have Oracle database 11g R1 intalled on Linux.
I can ping the Linux server from Windows.
I can also ftp to the Linux server from windows and get the files locally on Windows OS.
The listener and tns files are configured correctly (i assume) on both Linux and Windows.
Listener.ora on Linux
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME =CLRExtProc)
(ORACLE_HOME = /u01/app/oracle/product/11.1.0/db_2)
(PROGRAM = extproc)
(SID_DESC=
(GLOBAL_DBNAME=orcl)
(ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_2)
(SID_NAME=orcl)
SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST =192.168.159.132)(PORT = 1521)) ) )
Tnsnames.ora on linux
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.159.132)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
Sqlnet.ora on Linux
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
SQLNET.INBOUND_CONNECT_TIMEOUT = 300
SQLNET.SEND_TIMEOUT = 300
SQLNET.RECV_TIMEOUT = 300
Windows files
Tnsnames.ora on Windows
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST =192.168.159.132 )(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl) )
Sqlnet.ora on Windows
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
SQLNET.INBOUND_CONNECT_TIMEOUT = 300
SQLNET.SEND_TIMEOUT = 300
SQLNET.RECV_TIMEOUT = 300
The error on windows
ping results on windows
C:\Users\sri>ping 192.168.159.132
Pinging 192.168.159.132 with 32 bytes of data:
Reply from 192.168.159.132: bytes=32 time<1ms TTL=64
Reply from 192.168.159.132: bytes=32 time<1ms TTL=64
Reply from 192.168.159.132: bytes=32 time<1ms TTL=64
Reply from 192.168.159.132: bytes=32 time<1ms TTL=64
Ping statistics for 192.168.159.132:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
C:\Users\sri>tnsping orcl
TNS Ping Utility for 64-bit Windows: Version 11.2.0.1.0 - Production on 23-JUL-2010 19:55:56
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
C:\or11g\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
**Used TNSNAMES adapter to resolve the alias**
**Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST =192.168.159.132)(PORT = 1**
**521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))**
**TNS-12535: TNS:operation timed out**

Answer 1

# sqlnet.ora Network Configuration File: C:\or11g\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
SQLNET.INBOUND_CONNECT_TIMEOUT = 300
SQLNET.SEND_TIMEOUT = 300
SQLNET.RECV_TIMEOUT = 300