In https://www.rfc-editor.org/rfc/rfc2181#section-11

Hello, this task has a bug. Do I open a new task or comment here?

In T3316#167494, @indrajitr wrote:

set service dhcp-server dynamic-dns-update
set service dhcp-server hostfile-update
set service dhcp-server shared-network-name LAN authoritative
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 default-router '192.168.1.1'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 domain-name 'home'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 name-server '192.168.1.1'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 range 0 start '192.168.1.120'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 range 0 stop '192.168.1.230'
set service dhcp-server shared-network-name LAN subnet 192.168.1.0/24 static-mapping ...
...

I also notice that ddclient has a similar problem.

ddclient[1710]: FAILED:   Unable to obtain information for 'pppoe0' -- missing ip or ifconfig command

This might be a problem that's specific to me. I don't know why every systemd start too early.

This was fixed recently for dynamic interfaces like pppoe. @Zen3515 can you please try with 1.5-rolling-202312171632?

So, I tested the version 1.5-rolling-202312191154

Indeed, the dhcp server wasn't working so I assume that kea doesn't start, my bad, it did start, but it failed to start, after failing for 5 attempts.

Hello, I'd like to provide my quick feedback after testing the version 1.5-rolling-202312130023

I confirm that the problem persist, as of testing the version was 1.4-rolling-202307060317 but are extremely hard to reproduce, since the steps I describe only work sometime.

I've create a pull request for this task at https://github.com/vyos/vyos-1x/pull/2002

This issue was tested in two version which are
1.4-rolling-202212080318
1.4-rolling-202209130217

Maybe, we need to handle cron script differently if ping failed?
Please let me know what should be the direction for solving this issue.

I've created a pull request which add support for this, and yes, it does use raw command.
I know that here we want to avoid "raw options" but I think this is one of the most needed feature and I don't see any other way else to do this. Until a better option is found, I think my PR should do just fine.