i.MX Processors中的主题 Re: yocto udhcpc problem

yocto udhcpc problem

meeeeeei — Mon, 20 Nov 2023 01:41:56 GMT

Hi:

I use udhcpc -i eth0 command in IMX8MP yocto system to get ip address, but eth1 node will be down, why

Re: yocto udhcpc problem

Zhiming_Liu — Mon, 20 Nov 2023 02:37:55 GMT

Can you see eth0 with ifconfig?

Re: yocto udhcpc problem

meeeeeei — Mon, 20 Nov 2023 03:21:11 GMT

Hi: Zhiming_Liu

ifconfig has only eth0 nodes，All other wlan0 eth1 nodes are down

Re: yocto udhcpc problem

Zhiming_Liu — Mon, 20 Nov 2023 05:42:11 GMT

Please check the driver status

Re: yocto udhcpc problem

meeeeeei — Mon, 20 Nov 2023 06:13:05 GMT

How to check the driver state, I found that only the first time to use udhcpc will appear this problem, and the automatically obtained ip address will not take effect, after the use of udhcpc will not have this problem, I wonder if you have found this problem before

Re: yocto udhcpc problem

Zhiming_Liu — Tue, 21 Nov 2023 02:15:36 GMT

Can you share BSP version? Let me check it on my side.

Re: yocto udhcpc problem

meeeeeei — Tue, 21 Nov 2023 02:23:08 GMT

My bsp version is 6.1-langdale.

Re: yocto udhcpc problem

Zhiming_Liu — Tue, 28 Nov 2023 03:04:05 GMT

We are trying to find root cause

Re: yocto udhcpc problem

Zhiming_Liu — Mon, 04 Dec 2023 05:56:28 GMT

This is udhcpc command issue, the udhcpc will down the another interface on userspace layer.

Re: yocto udhcpc problem

meeeeeei — Tue, 05 Dec 2023 01:29:51 GMT

I found that Ubuntu system udhcpc has no related issues, then how to solve this problem

Re: yocto udhcpc problem

Zhiming_Liu — Fri, 08 Dec 2023 01:19:51 GMT

When we run the udhcpc command it will disable all the interface,but only enable the one we used currently at last. For the detail information you can reference the /etc/udhcpc.d/50default script. You can enable the other interface using ifconfig tool.

ifconfig eth0/eth1 up