Sounds like you've still got some issues - shouldn't have an IP as the
hostname to begin with.

I strongly suggest doing 'rpm -e linuxconf' first.  If you use anything but
linuxconf to attempt to configure your networking, then run linuxconf, you
will end up with mixed and conflicting settings in various places.

Most linux distributions have seen the light and ditched linuxconf with
prejudice - it was a Bad Idea.