Yes `vino` only, if you don't find, install it using:
# yum install vino
If you encounter a problem doing so with `yum`, then try to configure registering it:
# rhn-register
Of course if you have RHEL licensed, otherwise try creating your own repository.
As an alternative, you can also find vino packages on your RHEL media, installing it using this simple `rpm` command:
# rpm -ivh vino-
If you cannot find there, download it from rpm.pbone site.