back on topic
sreeni.reach
That "red hat linux 6 " is the CURRENT RHEL( Red Hat ENTERPRISE Linux) 6.3 ?? right ?
and not rh6 ( red hat linux6)from 1999
RH6.0 (Hedwig), April 26, 1999 (Linux 2.2.5-15)
also RHEL6 is not a free operating system
so i am guessing that YOU DID buy the REQUIRED support contract
-- it is a MUST HAVE, you have to BUY the license
https://www.redhat.com/apps/store/desktop/
the STD 1 year for $299 IS the recommended yearly license
then once you have registered RHEL6.3 your fist stop in finding answers
is the Red hat knowledge base
https://access.redhat.com/knowledge/search
login to the red hat web site with the user name you used for buying the license
and search for the make and model
however seeing as this isa network issue
you might want to call them on the phone and use the support license you bought.
----------- if you do not intend on buying the license then you do not use RHEL6
if that then install one of the FREE rebuilds
CentOS 6.3
or ScientificLinux 6.2 or 6.3
however RHEL is not known for working well on laptops
ask the rhel sales rep you are talking to about support for THAT exact make/model to see if it's network card is supported
the lan eth port should be easy
for cable
plug in the eth cable and reboot
but rhel dose tend to be a bit manual ( as in you might need to set things by hand )
for the default Gnome desktop
the ifup eth0 or ifdown eth0 from one of the above posts should do it