Upload the rhel-server-6.5-x86_64-dvd.iso image file to each target VM.
Mount the ISO file.
mount -o loop rhel-server-6.5-x86_64-dvd.iso /mnt
Modify YUM configuration files.
cp /etc/yum.repos.d/rhel-source.repo /etc/yum.repos.d/rhel-source.repo.bkp
vim /etc/yum.repos.d/rhel-source.repo
Modify the following lines:
[rhel-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=file:///mnt
enabled=1
gpgcheck=1
gpgkey=file:///mnt/RPM-GPG-KEY-redhat-release
Update configuration changes.