Sounds like you are wanting to make an image of Centos installed on a machine then copy that image to the other machines. The problems you will run into is the modules that are loaded for the master image machine on the other machines unless hardware is identical brand, make, model, version and so forth. If hardware is identical then copy the image to it and boot up not connected to the network. Make the changes to the network IP and reboot. If hardware differs then you are going to need to modify /etc/modprobe.conf, /etc/X11/xorg.conf, possible /etc/fstab, /etc/mtab, and /boot/grub/grub.conf. Linux distros are not the best and plug and play as hardware modules go. It can be done but the time to do all the above it would be quicker to install from cd or faster over the network.