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MichaIng avatar MichaIng commented on June 5, 2024

Can you check:

journalctl -u ifup@eth0

Good to know that the MAC addresses of the two LAN ports are randomised. But at least the interfaces do not seem to be switched (eth0 remains the LAN1 port).

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StephanStS avatar StephanStS commented on June 5, 2024

In case of a failed power up, the output is:

Mär 09 12:11:59 r5s systemd[1]: Starting [email protected] - ifup for eth0...
Mär 09 12:11:59 r5s dhclient[405]: Internet Systems Consortium DHCP Client 4.4.3-P1
Mär 09 12:11:59 r5s ifup[405]: Internet Systems Consortium DHCP Client 4.4.3-P1
Mär 09 12:11:59 r5s ifup[405]: Copyright 2004-2022 Internet Systems Consortium.
Mär 09 12:11:59 r5s ifup[405]: All rights reserved.
Mär 09 12:11:59 r5s ifup[405]: For info, please visit https://www.isc.org/software/dhcp/
Mär 09 12:11:59 r5s dhclient[405]: Copyright 2004-2022 Internet Systems Consortium.
Mär 09 12:11:59 r5s dhclient[405]: All rights reserved.
Mär 09 12:11:59 r5s dhclient[405]: For info, please visit https://www.isc.org/software/dhcp/
Mär 09 12:11:59 r5s dhclient[405]:
Mär 09 12:12:00 r5s dhclient[405]: Listening on LPF/eth0/8e:31:b4:9c:c5:31
Mär 09 12:12:00 r5s ifup[405]: Listening on LPF/eth0/8e:31:b4:9c:c5:31
Mär 09 12:12:00 r5s ifup[405]: Sending on   LPF/eth0/8e:31:b4:9c:c5:31
Mär 09 12:12:00 r5s ifup[405]: Sending on   Socket/fallback
Mär 09 12:12:00 r5s dhclient[405]: Sending on   LPF/eth0/8e:31:b4:9c:c5:31
Mär 09 12:12:00 r5s dhclient[405]: Sending on   Socket/fallback
Mär 09 12:12:01 r5s dhclient[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Mär 09 12:12:01 r5s ifup[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Mär 09 12:12:01 r5s ifup[405]: send_packet: Network is down
Mär 09 12:12:01 r5s ifup[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:01 r5s ifup[405]: receive_packet failed on eth0: Network is down
Mär 09 12:12:01 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:01 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:01 r5s dhclient[405]: receive_packet failed on eth0: Network is down
Mär 09 12:12:04 r5s dhclient[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
Mär 09 12:12:04 r5s ifup[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
Mär 09 12:12:04 r5s ifup[405]: send_packet: Network is down
Mär 09 12:12:04 r5s ifup[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:04 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:04 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:10 r5s dhclient[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15
Mär 09 12:12:10 r5s ifup[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15
Mär 09 12:12:10 r5s ifup[405]: send_packet: Network is down
Mär 09 12:12:10 r5s ifup[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:10 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:10 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:25 r5s dhclient[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15
Mär 09 12:12:25 r5s ifup[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15
Mär 09 12:12:25 r5s ifup[405]: send_packet: Network is down
Mär 09 12:12:25 r5s ifup[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:25 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:25 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:40 r5s dhclient[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 16
Mär 09 12:12:40 r5s ifup[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 16
Mär 09 12:12:40 r5s ifup[405]: send_packet: Network is down
Mär 09 12:12:40 r5s ifup[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:40 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:40 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:56 r5s dhclient[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
Mär 09 12:12:56 r5s ifup[405]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
Mär 09 12:12:56 r5s ifup[405]: send_packet: Network is down
Mär 09 12:12:56 r5s ifup[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:12:56 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:56 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.
Mär 09 12:13:01 r5s dhclient[405]: No DHCPOFFERS received.
Mär 09 12:13:01 r5s ifup[405]: No DHCPOFFERS received.
Mär 09 12:13:01 r5s ifup[405]: No working leases in persistent database - sleeping.
Mär 09 12:13:01 r5s dhclient[405]: No working leases in persistent database - sleeping.
Mär 09 12:13:01 r5s systemd[1]: Finished [email protected] - ifup for eth0.

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MichaIng avatar MichaIng commented on June 5, 2024

It just does not get a DHCP lease. It does immediately work when you run systemctl restart ifup@eth0, and when you apply a static IP?

Hmm

Mär 09 12:12:40 r5s dhclient[405]: send_packet: Network is down
Mär 09 12:12:40 r5s dhclient[405]: dhclient.c:2600: Failed to send 300 byte long packet over eth0 interface.

This actually looks like it was not able to send the DHCPDISCOVER, as if it really has no carrier signal or so 🤔.

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