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

[Gaiseric Vandal]

On 08/07/14 10:25, Michael Ben-Gershon wrote:
> On 06/08/14 17:30, Gaiseric Vandal wrote:
>> What is 192.168.1.6 ? Is it the server or some other machine?
>
> It is the server
>
>>
>> Is LINUX as machine name, workgroup name or domain name? Is the
>> samba server a WINS server?      It looks like some other machine may be
>> claiming  a machine name , or the master browser for a workgroup or
>> domain ,  that your samba server also claims.
>
> LINUX is the name of the server
> The samba server is, I believe, a WINS server.
>
>>
>>
>> Can you do a packet capture?
>
>  What is that, and how would I do it?
>
> I could post the smb.conf file.
> I am using 4.1.9 (as in Fedora 20, latest updates).
> I can say that it only started with the latest update about 2 months 
> (or more ago) but I can't remember (or find from logs) what the last 
> version was.
>
>>
>>
>> On 08/06/14 04:52, Michael Ben-Gershon wrote:
>>> Aug 6 11:21:44 linux nmbd[2193]: [2014/08/06 11:21:44.614859, 0]
>>> ../source3/nmbd/nmbd_packets.c:1174(process_lanman_packet)
>>> Aug  6 11:21:44 linux nmbd[2193]: process_lanman_packet: Discarding
>>> datagram from IP 192.168.1.6. Source name LINUX<00> is one of our 
>>> names !
>>> Aug  6 11:22:50 linux nmbd[2193]: [2014/08/06 11:22:50.279516,  0]
>>> ../source3/nmbd/nmbd_packets.c:1174(process_lanman_packet)
>>> Aug  6 11:22:50 linux nmbd[2193]: process_lanman_packet: Discarding
>>> datagram from IP 192.168.1.6. Source name LINUX<00> is one of our 
>>> names !
>>> Aug  6 11:24:06 linux nmbd[2193]: [2014/08/06 11:24:06.183526,  0]
>>> ../source3/nmbd/nmbd_packets.c:1174(process_lanman_packet)
>>> Aug  6 11:24:06 linux nmbd[2193]: process_lanman_packet: Discarding
>>> datagram from IP 192.168.1.6. Source name LINUX<00> is one of our 
>>> names !
>>> Aug  6 11:25:06 linux nmbd[2193]: [2014/08/06 11:25:06.246170,  0]
>>> ../source3/nmbd/nmbd_packets.c:1174(process_lanman_packet)
>>> Aug  6 11:25:06 linux nmbd[2193]: process_lanman_packet: Discarding
>>> datagram from IP 192.168.1.6. Source name LINUX<00> is one of our 
>>> names !
>>>
>>>
>>> For quite a while now, I have been receiving vast numbers of these
>>> messages in my log files.
>>>
>>> I do not see any other problems with samba, but it is annoying, and I
>>> am sure it means that something is not set up quite correctly.
>>>
>>> However, I have tried to follow suggestions found on the web for
>>> similar problems and nothing seems to have made any difference.
>>>
>>> Can anyone help?
>>>
>>> Many thanks in advance,
>>> Michael
>>>
>>> -- 
>>> Michael Ben-Gershon
>>> mybg at netvision.net.il
>>
>
>

can you check the wins settings in smb.conf.   If this is a WINS server 
it should say

     wins support = yes


The "wins  server" parameter would be used if this was a wins CLIENT , 
and you were specifying which wins server this client machine should use.

Packet capturing allows you to copy the ethernet traffic between 
devices, or between the your machine and other devices.  You can use 
wireshark or tcpdump.  It isn't relevant in this case since  log 
entries  are being triggered by the server itself, not another machine.

"LINUX<00>" is the netbios name for the workstation service.


http://support.microsoft.com/kb/163409


Is this server configured as a "NT4/Samba3" type PDC or an AD 
controller?  If this an AD domain.   If this is an AD domain you might 
not even need the nmbd daemon running.