F21 - Refreshing DHCP lease on ethernet

[Robert Moskowitz]

On 01/21/2015 01:20 PM, poma wrote:
> http://www.networksorcery.com/enp/protocol/dncp.htm
>
> Maybe it's too complicated to discuss here.

You had some fun, and I am use to people having fun with my malaprops.

But I just came back from a seminar and took the machine in question out 
of suspension and it is still not showing the DHCP options I have now 
set on the firewall.

So the question remains as to how, for an ethernet connection, to get 
NetworkManager (that I am assuming is controlling all the network 
connections) to refresh the lease and get the new options as a result.

I tried:

systemctl restart NetworkManager

No change.

I noticed that on the firewall, I had the lease time set to unlimited.  
I changed that to 12H, released the lease on the server, restarted 
NetworkManager.  It now shows an almost 12hr lease.  Still no 
/etc/resolv entries.  I then did a 'ls -ls /etc/res*' and the file has 
not been touched for days!  So NetworkMangeler is sure that there is no 
reason to make any changes, dispite what it SHOULD be getting in the 
DHCP returns...