[Dnsmasq-discuss] could not bind dnsmasq to mutiple interfaces with same ip-address

Michael Rack michael.rack at rsm-freilassing.de
Thu May 13 21:17:22 BST 2010


The interfaces configuration was attached to my mail.

> bond0     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet addr:81.95.14.97  Bcast:81.95.14.99  Mask:255.255.255.252
>           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1460  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> bond1     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet addr:81.95.14.101  Bcast:81.95.14.103  Mask:255.255.255.252
>           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1460  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> bond2     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet addr:81.95.14.105  Bcast:81.95.14.107  Mask:255.255.255.252
>           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1460  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> bond3     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet addr:91.205.12.0  Bcast:255.255.255.255  
> Mask:255.255.255.255
>           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1460  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> bond4     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet addr:91.205.12.0  Bcast:255.255.255.255  
> Mask:255.255.255.255
>           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1460  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>
> bond5     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
>           inet addr:91.205.12.0  Bcast:255.255.255.255  
> Mask:255.255.255.255
>           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1460  Metric:1
>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

No interface is currently up / no real interface is attached to the 
bonding-device. But without dnsmasq starts without problems, so the 
interface status does not matter. The Interface is really up, as you can 
see.

Liebe Grüße aus Freilassing,

Michael Rack
RSM Freilassing
-- 
RSM Freilassing                 Tel.: +49 8654 607110
Nocksteinstr. 13                Fax.: +49 8654 670438
D-83395 Freilassing            www.rsm-freilassing.de


Am 13.05.2010 20:33, schrieb Rance Hall:
> On Thu, May 13, 2010 at 1:24 PM, Michael Rack
> <michael.rack at rsm-freilassing.de>  wrote:
>    
>> Hi Simon!
>>
>> I've installed dnsmasq to my new servers i bought. I copied all files
>> original as of the old server. But on startup i get this error message:
>>      
>>> dnsmasq: unknown interface bond5
>>>        
>> after removing bond5 i got the following error message:
>>      
>>> dnsmasq: unknown interface bond4
>>>        
>> after removing bond4, dnsmasq startet properly.
>>
>>      
>
> I have never seen this error unless the interface really didn't exist.
>   your removing the bond5 entry from the config file seems to suggest
> that the IF really doesnt exist.
>
> What does ifconfig say?
>
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