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

[Michael Ben-Gershon]

On 07/08/14 19:31, Gaiseric Vandal wrote:
> 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

It does, and there is no wins server entry.

>
>
> 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.

What info would tell me how it is set up? I presume something in smb.conf?

The thing is, nothing like this has happened before and the server has 
been running for years without any problem. Even this is not a major 
problem as everything else works fine.




-- 
Michael Ben-Gershon
mybg at netvision.net.il