Description of problem:
"invalid ip address" when enter ntp server manually.
Version-Release number of selected component (if applicable):
Steps to reproduce:
1. Change "ntp server 1" to :10.66.72.203
2. leave "ntp server 2" as default.
3. press tab to network device.
"invalid ip address" shows.
no such error.
*** This bug has been marked as a duplicate of bug 720956 ***