From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)

Description of problem:
The script /sbin/ifdown or /etc/sysconfig/network-scripts/ifdown does not 
release the address obtain by DHCP.

You should add at line 79 and 82 the following :
         dhcpcd  -k  ${DEVICE}
to release the address obtain by DHCP.

With this modification the client releases the address obtain by the DHCP (when 
using dhcpcd).

Without this modification I had trouble making ddns work well.


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.Configure a network card using dhcp
2.start network
3.stop network (there is no dhcp-release send by the client)
	

Actual Results:  no dhcp-release send by client

Expected Results:  dhcp-release send by client

Additional info: