multicast problem in vls on freebsd 4.10

[Yong Chu Eu (Ñî×ÓÓÓ)]

i see, but its seem i cannot even start streaming from vls server(i think
maybe sender side problem but i don't what is the problem,all the
configuration well in manner) but i did get IPv6 and IPv4 unicast up. i
confirm that my network card did support multicast. 

As for bridge,u are right. some bridge are not supporting multicast will
do broadcast. even in broadcast i still can recv traffic. 




--- Bruce M Simpson <bms at spc.org> wrote:

> On Wed, Oct 20, 2004 at 07:53:28AM -0700, Yong Chu Eu (Ñî×ÓÓÓ) wrote:
> > i am try to stream from freeBSD multicast router(without kame but with
> > pim6sd,route6d)to MN throught Access Point which are redhat. There is
> a
> > bridge between eth0 and wlan0 at software Access Point. There problem
> is i
> > cannot even start streaming from vls, the error message i paste as
> below .
> > I can do streaming on IPV4/IPv6 unicast. 
> 
> There are several issues here that I see above and beyond the problems
> you are having with vls. Many pieces of 802.11 hardware simply don't
> support multicast receive in an efficient way.
> 
> The last time I looked at the acx100 driver code, it did not support
> multicast receive, period - the necessary ioctls were not there. So if
> you wanted to receive multicast frames, you would need to put the card
> into promiscuous mode. You might consider contacting the author, Darron
> Broad, about this.
> 
> I don't know about the behaviour of the Linux bridging code with respect
> to bridging multicast frames; the behaviour for most low-end hardware
> switch implementations is to propagate them on all other ports as if
> they were broadcasts.
> 
> BMS
> 


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