Regression in vr - not receiveing multicast

Bruce Simpson bms at incunabulum.net
Sat Dec 13 10:01:26 PST 2008


Goran Lowkrantz wrote:
>>
>> Can you see ALLMULTI flag from the output of "ifconfig vr0"?
>>
> No ->
> # ifconfig vr0
> vr0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 
> 0 mtu 1500
>     options=284b<RXCSUM,TXCSUM,VLAN_MTU,POLLING,WOL_UCAST,WOL_MAGIC>
>     ether 00:00:24:c8:e0:9c
>     inet xxx.xxx.xxx.xxx netmask 0xfffffff8 broadcast xxx.xxx.xxx.yyy
>     media: Ethernet autoselect (100baseTX <full-duplex>)
>     status: active 

Only a client of the MROUTING socket-level API (e.g. mrouted, XORP, 
pimdd, pimsd) is able to cause the kernel to enable ALLMULTI on an 
interface by itself.

You will need to get a multicast routing daemon of some kind running to 
test this. mrouted is OK for testing very simple configurations, 
although it has been de-orbitted as far as the 'Net itself is concerned.

thanks
BMS


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