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

[Henrik Maier]

Another reminder:

There were (still are?) also a few race conditions in DhcpKick which 
caused lock-ups in rare circumstances. Maybe this is the same cause here?

Refer to earlier post from 10/2/2012 Re: [En-Nut-Discussion] Possible 
race condition in DHCP and DHCPKick

Cheers

Henrik


On 7/07/2012 2:04 AM, Ulrich Prinz wrote:
> 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
> anymore.
>
> I did not test latest version of Nut/OS on EIR, but I just want to
> remember that thing.
>
> Ulrich
>
> 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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