dhcpcd-discuss

Hi Kobi

On 04/04/2013 21:42, Kobi Cohen-Arazi wrote:
> Question - I have a scenario, where I would like to request a new IP
> (but not to renew it).
>
> In this scenario, I stop dhcpcd before running a new DHCP request.
> The platform is Android (recent JB) and from what I see, dhcpcd take
> the current IP (not sure where does it take it from, maybe from
> dhcp.wlan0.ipaddress system property ?) and use this IP in the 
> request
> packet.
> In this specific scenario, the target DHCPD server is not the same
> one giving this IP to the client so it remains silent. (this is by 
> the
> spec IMO).
> client backs off for 10 second and start again with DISCOVER. From
> this point everything goes as it should be.
>
> Is there a way to tell dhcpcd to start with DISCOVER instead of
> attempting to (re)use the previous IP?
>
> Any pointers for this? I can add an option for that and stick it in
> if-options.c:parse_option to make it configurable.

You could add the release keyword to dhcpcd.conf(5) or stop dhcpcd 
using the -k option or sending it SIGHUP.
This causes dhcpcd to release any lease and discard the current saved 
lease if any so that a dhcpcd restart starts up fresh as you want.

Does this help?

Thanks

Roy