From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gustavo Zacarias <gustavo@zacarias.com.ar>
Date: Wed, 11 Nov 2015 08:40:14 -0300
Subject: [Buildroot] issue with dhcp on buildroot
In-Reply-To: <2864886.JM8PMHTYst@mars>
References: <2864886.JM8PMHTYst@mars>
Message-ID: <5643291E.1040902@zacarias.com.ar>
List-Id: <buildroot.busybox.net>
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To: buildroot@busybox.net

On 11/11/15 05:47, Michael Schweikart wrote:

> Hi,
>
> i have setup a buildroot environment and build it. I deploy it on device under
> test and the systems boots up(Kernel Version 4.3). As soon as the network and
> udhcpc (v1.24.1) starts i get the following messages.
>
> Sending discover...
> udhcpc: sendto: Invalid argument.
> Sending discover...
> udhcpc: sendto: Invalid argument.
> No lease, failing
>
> If i setup an static ip address i am able to ping the device under test. I try
> to ping a IP form the device under test i get the following error.
>
> ping: sendto: Destination address required
>
> Is there anybody out there how can support me?
>
> best regards

Hi, by any chance is that x86? (not x86_64)
Because kernel 4.3 and uclibc don't see eye-to-eye and this is one of 
the problems i've got when trying that combination.
Switching to some other libc (musl, glibc) has no problem, and any 
uclibc variant has this problem.
I guess it's related to the x86 vm86 patches/rework that went into 4.3, 
since rolling back to 4.2.x makes the problem go away.
Regards.