Arch Linux

scrouthtv

Member

Registered: 2019-10-15

Posts: 38

[SOLVED] Dhcpcd 9.3.4 assigns automatic private IP, internet not worki

Hello,

I have a desktop pc that dual boots Windows & Linux. No worries, I disabled Fast Boot and rebooted fully last time I used Windows.

Today, I updated a lot of packages, and with it also dhcpcd from 9.2.0-1 to 9.3.4-1. After a reboot, my internet isn't working anymore:

 ~ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 169.254.61.39 icmp_seq=1 Destination Host Unreachable
From 169.254.61.39 icmp_seq=2 Destination Host Unreachable
From 169.254.61.39 icmp_seq=3 Destination Host Unreachable
From 169.254.61.39 icmp_seq=4 Destination Host Unreachable
From 169.254.61.39 icmp_seq=5 Destination Host Unreachable

--- 8.8.8.8 ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4049ms
pipe 4
 ~ ping 192.168.0.1 (my gateway / router)
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
From 169.254.61.39 icmp_seq=1 Destination Host Unreachable
From 169.254.61.39 icmp_seq=2 Destination Host Unreachable
From 169.254.61.39 icmp_seq=3 Destination Host Unreachable
From 169.254.61.39 icmp_seq=4 Destination Host Unreachable
From 169.254.61.39 icmp_seq=5 Destination Host Unreachable

--- 192.168.0.1 ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4043ms
pipe 3
 ~ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 50:af:73:6e:64:12 brd ff:ff:ff:ff:ff:ff
    inet 169.254.61.39/16 brd 169.254.255.255 scope global noprefixroute enp3s0
       valid_lft forever preferred_lft forever
    inet6 fe80::7a33:4945:6d76:eb3b/64 scope link 
       valid_lft forever preferred_lft forever
3: wlp4s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 34:68:95:0d:9a:db brd ff:ff:ff:ff:ff:ff

I downgraded back to 9.2.0, and the internet worked for once, but after a reboot (with the old dhcpcd) it wasn't working anymore.

I'm totally out of ideas on how to fix this, thanks for any help in advance.
I will reply with logs but my browser crashes if I put to much text in this one box.

Last edited by scrouthtv (2020-12-06 13:05:54)

scrouthtv

Member

Registered: 2019-10-15

Posts: 38

Re: [SOLVED] Dhcpcd 9.3.4 assigns automatic private IP, internet not worki

systemctl status dhcpcd@enp3s0:

● dhcpcd@enp3s0.service - dhcpcd on enp3s0
     Loaded: loaded (/usr/lib/systemd/system/dhcpcd@.service; enabled; vendor preset: disabled)
     Active: active (running) since Sun 2020-12-06 13:31:59 CET; 11min ago
    Process: 397 ExecStart=/usr/bin/dhcpcd -q -w enp3s0 (code=exited, status=0/SUCCESS)
   Main PID: 399 (dhcpcd)
      Tasks: 7 (limit: 14291)
     Memory: 2.4M
     CGroup: /system.slice/system-dhcpcd.slice/dhcpcd@enp3s0.service
             ├─399 dhcpcd: enp3s0 [ip4] [ip6]
             ├─401 dhcpcd: [privileged actioneer] enp3s0 [ip4] [ip6]
             ├─402 dhcpcd: [network proxy] enp3s0 [ip4] [ip6]
             ├─403 dhcpcd: [control proxy] enp3s0 [ip4] [ip6]
             ├─441 dhcpcd: [network proxy] fe80::7a33:4945:6d76:eb3b
             ├─442 dhcpcd: [BPF BOOTP] enp3s0
             └─443 dhcpcd: [BPF ARP] enp3s0 169.254.61.39

Dec 06 13:31:47 arch-desktop dhcpcd[401]: enp3s0: IAID 73:6e:64:12
Dec 06 13:31:47 arch-desktop dhcpcd[401]: enp3s0: adding address fe80::7a33:4945:6d76:eb3b
Dec 06 13:31:47 arch-desktop dhcpcd[401]: enp3s0: soliciting an IPv6 router
Dec 06 13:31:49 arch-desktop dhcpcd[401]: enp3s0: soliciting a DHCP lease
Dec 06 13:31:54 arch-desktop dhcpcd[401]: enp3s0: probing for an IPv4LL address
Dec 06 13:31:59 arch-desktop dhcpcd[401]: enp3s0: using IPv4LL address 169.254.61.39
Dec 06 13:31:59 arch-desktop dhcpcd[401]: enp3s0: adding route to 169.254.0.0/16
Dec 06 13:31:59 arch-desktop dhcpcd[401]: enp3s0: adding default route
Dec 06 13:31:59 arch-desktop systemd[1]: Started dhcpcd on enp3s0.
Dec 06 13:32:00 arch-desktop dhcpcd[401]: enp3s0: no IPv6 Routers available

journalctl and dmesg coming soon.

scrouthtv

Member

Registered: 2019-10-15

Posts: 38

Re: [SOLVED] Dhcpcd 9.3.4 assigns automatic private IP, internet not worki

Over at https://bbs.archlinux.org/viewtopic.php?id=138636 someone wrote to disable ipv6 which didn't change anything. I added it to my /etc/default/grub and regenerated GRUB's main configuration file but the internet is still now working after a reboot.

scrouthtv

Member

Registered: 2019-10-15

Posts: 38

Re: [SOLVED] Dhcpcd 9.3.4 assigns automatic private IP, internet not worki

Wow. Now I've upgraded and commented the line noipv4ll in the dhcpcd.conf and it's working again. Let's see for how long.