[En-Nut-Discussion] SVN r4206 broke DHCP with some DHCP servers

Ulrich Prinz ulrich.prinz at googlemail.com
Fri Jul 6 18:04:51 CEST 2012

Just a reminder:

There might be a chance that the UDP was set off to avoid system hangs.
Some long time ago I reported that the EIR hangs in DHCP if there are 
multicasts coming in while the interface is not configured.

Just setup a DLNA system or use your Telekom mediareceiver via some 
non-IGMPv2 switches and try to boot your EIR. It will fail with the 
first incoming broadcast/multicast right before the DHCP handling.

After the DHCP handling had finished, even a broadcast storm cannot harm 

I did not test latest version of Nut/OS on EIR, but I just want to 
remember that thing.


Am 06.07.2012 15:24, schrieb Harald Kipp:
> Hi Ole,
> On 06.07.2012 11:59, Ole Reinhardt wrote:
>>>> Is there any real need to discard unicast packets as long as our own
>>>> interface is not yet configured?
>>> I don't see any need to discard such packets.
>> Ok! So I applied my patch to the trunk.
> Thanks,
> Harald
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