[Samba] process_lanman_packet: Discarding datagram from IP 192.168.100.29. Source name STORAGE7<00> is one of our names !

[Torkil Svensgaard]

Hi again

I have a number of Linux hosts running Samba on the same two networks 
and none of these show this error, even at log level 10.

Versions checked:

4.1.6-Ubuntu
4.1.20-Ubuntu

If there is something wrong with both my networks, shouldn't I see the 
error on all my installations?

Thanks,

Torkil

On 01/06/2016 09:12 AM, Torkil Svensgaard wrote:
> On 01/06/2016 01:23 AM, Jeremy Allison wrote:
>
>>> Jan  5 23:17:32 storage4 nmbd[34068]: [2016/01/05 23:17:32.086480,
>>> 0] ../source3/nmbd/nmbd_packets.c:1174(process_lanman_packet)
>>> Jan  5 23:17:32 storage4 nmbd[34068]:   process_lanman_packet:
>>> Discarding datagram from IP 172.21.140.17. Source name STORAGE4<00>
>>> is one of our names !
>>> "
>>
>> Are you forwarding broadcasts ? This is a debug level 0 log
>> coming from process_lanman_packet() telling you you have a
>> badly configured network :-).
>
> Is this typically a wiring/topology problem or could I have services on
> my network that forward broadcasts? Any suggestion on how to go about
> determining the source of potential forwards?
>
> I have a wireshark capture of packets with contents in the few seconds
> around the error, anything in particular I could look for?
>
> Thanks,
>
> Torkil


-- 
Torkil Svensgaard
Sysadmin
MR-Forskningssektionen, afs. 714
DRCMR, Danish Research Centre for Magnetic Resonance
Hvidovre Hospital
Kettegård Allé 30
DK-2650 Hvidovre
Denmark
Tel: +45 386 22828
E-mail: torkil at drcmr.dk