After installation I observed that the eth0 adapter is not configured.
This blog post helped me to start networking, thanks Rutger Thomschutz!
Based on the blog post mentioned I did the following:
vi /etc/sysconfig/network-scripts/ifcfg-eth0 # changed ONBOOT to Yes ONBOOT = yesCreated the hard links, brang up the adapter and rebooted the server:
# edit 9/10/2013 - in most cases you don't have to create the links below.
# ln /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/networking/devices/ifcfg-eth0 # ln /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/networking/profiles/default/ifcfg-eth0 ifconfig eth0 up reboot now #