Ethernet resets after boot, losing my static IP

[ajhlinuxuser]

Hello,

I have a default install of Arch Linux ARM from the raspberry Pi site. I followed the instructions for creating a static IP at archlinux.org, and it seemed to work.

However, on reboot, or when the ethernet cable is (accidentally) unplugged and plugged back in, I lose my static IP address.

If I log in fast enough, I can see that the static IP is set. But after 10 seconds, the network LEDs turn off, and on again, and I have lost my static IP.

Does anyone know how I can prevent this from happening?



FYI, I don't think there is a problem with the static IP config file, since I can run:
$this->bbcode_second_pass_code('', '# systemctl stop network@eth0.service
# systemctl start network@eth0.service')

Also, here are the processes running at the time I experience the failure:
$this->bbcode_second_pass_code('', '[root@alarmpi ~]# pstree
systemd-+-agetty
|-avahi-daemon---avahi-daemon
|-avahi-dnsconfd
|-crond
|-dbus-daemon
|-haveged
|-ifplugd
|-login---bash
|-rngd
|-sshd---sshd---bash---pstree
|-systemd---(sd-pam)
|-systemd-journal
|-systemd-logind
`-systemd-udevd
')

[WarheadsSE]

Do you still have dhcp enabled? Or ifplugd?

[ajhlinuxuser]

Yes, ifplugd is running on the default install! I only knew to look for dhcpcd, which was not running. I had no clue what ifplugd was.


Oh, and I found this: https://wiki.archlinux.org/index.php/Network_Configuration#ifplugd_for_laptops

I will disable it and see what happens.

[pepedog]

Don't disable ifplugd, just make sure there is only one profile in /etc/netctl where interface=eth0
Don't confuse the file with a name of eth0 with that statement, although you could edit that file and make static

Explanation, netctl-ifplud@eth0 goes thru all profiles in that folder, looking at Interface= line, seeing if it matches eth0

[ajhlinuxuser]

Hmm,

to be clear, I followed the section https://wiki.archlinux.org/index.php/Ne ... IP_address, titled Manual connection at boot using systemd, so it seems that I had better disable ifplugd anyway, since my usage of systemd makes ifplugd redundant.

In my case, I have created the following files per the wiki:

• /etc/conf.d/network@eth0
• /etc/systemd/system/network@.service

So I have not set up anything under /etc/netctl at all.

I can see an alternate arrangement that you are trying to explain, which does *not* use systemd at all. Sorry guys, as a newbie, I'm just doing whats in the wiki.

So I will run
$this->bbcode_second_pass_code('', 'systemctl disable netctl-ifplugd@eth0.service')
and see if that works.

If I'm at a total loss getting this to work, I'll remove the systemd files and tweak with the /etc/netctl folder. If anyone has a link to documentation on this "netctl" method, post it please, or point to the correct section of the archlinux wiki.

[moonman]

http://bit.ly/Mowz8F

[PeterAOBell]

$this->bbcode_second_pass_quote('ajhlinuxuser', 'S')o I will run
$this->bbcode_second_pass_code('', 'systemctl disable netctl-ifplugd@eth0.service')
and see if that works.