Fwd: real broadcast mode

Tapio Haapala tapio.haapala at f-solutions.fi
Wed May 16 16:42:13 CEST 2012


Thank you
This works fine and resolve our problem.


14.5.2012 19:29, Ondrej Zajicek kirjoitti:
> On Thu, May 10, 2012 at 05:33:09AM +0300, Tapio Haapala wrote:
>> Again we get problems with multicast (all aour routers stop sending igmp
>> last night). So I must ask that what kind possibility is get that real
>> broadcast feature to bird? It solve many problem when you have dozens of
>> routers and links where you cannot guarantee that multicast work
>> properly.
>> On this case naturally right method is reboot all routers and fix that
>> igmp. BUT on first place that multicast is mostly pain in the ass all
>> time when you do not have full control to whole network so I prefer
>> choice that we can get rid off that.
>> So I humbly asking new feature. It is real broadcast type. Because of
>> compatibility reasons it is unpossible use type bcast for that and
>> rename multicast for type mcast I suggest that new type is rbcast. It is
>> extension over rfc but it is really usefull one. On real broadcast
>> packets send to 255.255.255.255 so they does not get meshed up with
>> multicast specific rules.
> Implemented in commit 95127cbbb76e8870e029454a5313bc4b6ce69a4a. Option
> 'real broadcast', relevant for 'type broadcast' and 'type ptp'. Uses
> directed broadcast addresses instead of 255.255.255.255, but it is the
> same on ethernet link-layer (ff:ff:ff:ff:ff:ff).
>


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Tapio Haapala

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