Using the dummy0 interface for a local-only service to be broadcasted by Avahi

Till Kamppeter till.kamppeter at
Thu Dec 29 18:32:34 UTC 2016

On 12/29/2016 02:37 PM, Stéphane Graber wrote:
>> How can I assign a different name to a dummy interface? Can I freely choose
>> a name somehow, for example "ippusbxd"? Or have I to use "dummy1", "dummy2",
>> ... (loading the dummy kernel module with an option to support more than one
>> interface)?
> root at castiana:~# ip link add ippusbxd type dummy
> root at castiana:~# ip link set ippusbxd up
> root at castiana:~# ifconfig ippusbxd
> ippusbxd: flags=195<UP,BROADCAST,RUNNING,NOARP>  mtu 1500
>         inet6 fe80::3004:2dff:feb6:b5c7  prefixlen 64  scopeid 0x20<link>
>         ether 32:04:2d:b6:b5:c7  txqueuelen 1000  (Ethernet)
>         RX packets 0  bytes 0 (0.0 B)
>         RX errors 0  dropped 0  overruns 0  frame 0
>         TX packets 2  bytes 140 (140.0 B)
>         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Another thing which I have seen is that it has no netmask and no 
broadcast address (does this exist in IPv6?) and there is also MULTICAST 
under the flags.

Is this the problem why I cannot bind to port 60000 of this interface?

How can I make this a Bonjour-broadcastable interface?


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