dhcpcd-discuss

Hi Jonas

On 30/09/2019 16:56, Jonas Ramstrand wrote:
> Hi!
>
> I have issue with starting dhcpcd with static ip, from command line.
> I start dhcpcd with command: "dhcpcd wlan0 --ipv4only --static 
> ip_address=10.30.2.121/21 <http://10.30.2.121/21> --static 
> routers=10.30.0.1 --static domain_name_servers="10.30.0.101 10.30.0.120""
> But dhcpcd is still doing discover/request, and uses that address as 
> static. Am I missing something?
>
> I see the same behavior on 6.11.3 and 7.2.2 (system running Yocto). 
> Seems as I get this when I don't have any lease-file for the SSID that I 
> connect to.
>
> Traces:
>     dhcpcd[2497]: DUID 00:01:00:01:24:e6:df:a4:00:01:3e:3d:f2:31
>     dhcpcd[2497]: wlan0: IAID 3e:3d:f2:31
>     dhcpcd[2497]: wlan0: probing address 10.30.2.121/21 
> <http://10.30.2.121/21>
>     dhcpcd[2497]: wlan0: hardware address 00:01:3e:3d:e6:c9 claims 
> 10.30.2.121
>     dhcpcd[2497]: wlan0: soliciting a DHCP lease
>     dhcpcd[2497]: wlan0: offered 10.30.2.166 from 1.1.1.1
>     dhcpcd[2497]: wlan0: probing address 10.30.2.166/21 
> <http://10.30.2.166/21>
>     dhcpcd[2497]: wlan0: using static address 10.30.2.166/21 
> <http://10.30.2.166/21>
>     dhcpcd[2497]: wlan0: adding route to 10.30.0.0/21 <http://10.30.0.0/21>
>     dhcpcd[2497]: wlan0: adding default route via 10.30.0.1
>     dhcpcd[2497]: forked to background, child pid 2523

The error is because the IP address you are requesting for static config 
failed the DAD probe.
I've fixed this here:
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=a5081cf0bb5e5f76f7a80b28c90b0423507b3755

Roy