hi, <div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi, have you all the needed libnss* libs on your system? For example: <a href="http://libnss_dns-2.7.so" target="_blank">libnss_dns-2.7.so</a> libnss_dns.so.2 <a href="http://libnss_files-2.7.so" target="_blank">libnss_files-2.7.so</a> libnss_files.so.2 Is your /etc/nsswitch.conf correct? </blockquote></div>Before i check the configuration,let me post my assumption................. I have a ethernet controller,in which the ping works fine................. ping <a href="http://192.168.1.1">192.168.1.1</a>(my default gateway)....................i get.............. 64 bytes from <a href="http://192.168.1.1/" target="_blank">192.168.1.1</a>: seq=0 ttl=64 time=46.315 ms the same way when i ping google with the ip address............ # ping <a href="http://64.233.167.99">64.233.167.99</a> (google's ip address) i get................... PING <a href="http://64.233.167.99">64.233.167.99</a> (<a href="http://64.233.167.99">64.233.167.99</a>) 56(84) bytes of data. 64 bytes from <a href="http://64.233.167.99">64.233.167.99</a>: icmp_seq=1 ttl=240 time=91.3 ms But when i use my wireless which is eth1 to ping my default gateway ping -I eth1 <a href="http://192.168.1.1">192.168.1.1</a> i get.................... 64 bytes from <a href="http://192.168.1.1/" target="_blank">192.168.1.1</a>: seq=0 ttl=64 time=46.315 ms but when i ping google....... ping -I eth1 <a href="http://64.233.167.99">64.233.167.99</a> ping hangs after that........................ As you say,if the <a href="http://libnss_dns-2.7.so/" target="_blank">libnss_dns-2.7.so</a> libnss_dns.so.2 <a href="http://libnss_files-2.7.so/" target="_blank">libnss_files-2.7.so</a> libnss_files.so.2 if they are not installed properly..........my ping command should fail for both ethernet as well as my wireless.......... Why the ping is failing only for my wireless device ? Regards, Ram