DHCP lease renew

["Usyskin, Alexander" <alexander usyskin intel com>]

Hi

I'm trying to force DHCP lease renew for specific interface. Basically replicate in Linux IpRenewAddress 
function from Win32 API.
Without NetworkManager it's fairly simple, like "dhclient -r eth4 && dhclient -1 eth4".
But NetworkManager manages dhclient in different way, so that lead to an unexpected consequences.

I can't find a way to ask NetworkManager to forcefully renew the lease. Neither through DBus API, nor from 
command line.
Is there any way to do such thing?
If not, how can I file an enhancement request?

Please CC me on reply, I'm not subscribed to this list.

Thanks
--
Alexander (Sasha) Usyskin

CSE FW Dev - Host SW
Intel Israel (74) Limited