in reply to Offline install of perl

Most likely, ExtUtils::MakeMaker already is installed with perl on the machine. If RedHat is one of the companies violating the Perl license by redistributing a modified version of Perl under the same name, then most likely you can upgrade the installed packages by downloading the appropriate RPMs and installing them in one go:
rpm -i A.rpm B.rpm C.rpm

If all else fails, you can try to force-install these packages skipping their prerequisites.