netctl-ifplugd Unable to get ip address

[eatradish]

Hi,
When I tried to use the Android phone network USB share to use with Arch Linux, I could not get the ip address.
I first used netctl-ifplugd to connect to the network, using the interface of the mobile network device enp0s29u1u1 , the configuration file is as follows:

sakiiily in ~ at 20:30:56 λ cat /etc/netctl/enp0s29u1u1
Description='A basic dhcp ethernet connection'
Interface=enp0s29u1u1
Connection=ethernet
IP=dhcp
#DHCPClient=dhcpcd
#DHCPReleaseOnStop=no
## for DHCPv6
#IP6=dhcp
#DHCP6Client=dhclient
## for IPv6 autoconfiguration
#IP6=stateless

Then I use sudo systemctl enable netctl-ifplugd@enp0s29u1u1 --now to ping again to test whether the network is connected, and found that the connection is not up, the ip output is as follows:

sakiiily in ~ at 20:37:31 λ ip -c -br a 
lo               UNKNOWN        127.0.0.1/8 ::1/128 
enp0s25          DOWN           
wlp3s0           UP             192.168.1.100/24 fe80::7ee9:d3ff:fef1:2cb3/64 
enp0s29u1u1      UNKNOWN        fe80::b0d1:3bff:fea5:a7ad/64 

netctl-ifplugd service output:

● netctl-ifplugd@enp0s29u1u1.service - Automatic wired network connection using netctl profiles
   Loaded: loaded (/usr/lib/systemd/system/netctl-ifplugd@.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2018-10-18 20:37:19 CST; 1min 10s ago
     Docs: man:netctl.special(7)
 Main PID: 3839 (ifplugd)
    Tasks: 1 (limit: 4915)
   Memory: 2.5M
   CGroup: /system.slice/system-netctl\x2difplugd.slice/netctl-ifplugd@enp0s29u1u1.service
           └─3839 /usr/bin/ifplugd -i enp0s29u1u1 -r /etc/ifplugd/netctl.action -bfIns

Oct 18 20:37:19 eat-x220i dhcpcd[3860]: DUID 00:04:c8:58:59:01:51:fd:11:cb:85:03:f3:9e:7a:88:e0:f0
Oct 18 20:37:19 eat-x220i dhcpcd[3860]: enp0s29u1u1: IAID 3b:a5:a7:ad
Oct 18 20:37:20 eat-x220i dhcpcd[3860]: enp0s29u1u1: soliciting a DHCP lease
Oct 18 20:37:49 eat-x220i dhcpcd[3860]: timed out
Oct 18 20:37:49 eat-x220i ifplugd[3839]: client: timed out
Oct 18 20:37:49 eat-x220i dhcpcd[3860]: dhcpcd exited
Oct 18 20:37:49 eat-x220i ifplugd[3839]: client: <3>DHCP IPv4 lease attempt failed on interface 'enp0s29u1u1'
Oct 18 20:37:49 eat-x220i ifplugd[3839]: client: <3>Failed to bring the network up for profile 'enp0s29u1u1'
Oct 18 20:37:49 eat-x220i ifplugd[3839]: client: <3>Could not start any suitable profile
Oct 18 20:37:49 eat-x220i ifplugd[3839]: Program execution failed, return value is 1.

But there is no problem with networkmanager
The problem is as above, thank you for helping solve the problem.

[joukewitteveen]

Hi,
That is very weird. I am currently working on improvements for removable devices, but your issue seems unrelated. Are you sure that the connection is a simple DHCP connection? Your log only shows the DHCP client timing out.

[eatradish]

@joukewitteveen
Usually it should be, my understanding is that the phone here only acts as a ethernet network adapter.

[joukewitteveen]

Does starting the profile manually (netctl start <your-profile>) make any difference?