Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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i'm working on a realtime-audio application, which should be capeable to receive RTP packets via multicast addresses.
App did work fine till i switched from 2.6.22 to kernel 2.6.24 (because of hwmon support for VIA EPIA LT15000AG)
With kernel 2.6.22 i had no problems, i'm using almost identical .config
Also tried kernel 2.6.24-rc5, same problem.
Tried it on two different boards (diff. NIC's, cpu's mem, etc ..)
I'm using the same setsockopt with IP_ADD_MEMBERSHIP as before for all interfaces.
But now my app does not receive any multicast packet !
Strange thing is, as long as tcpdump is running, the app (and tcpdump) get the multicast packets, but if i stopp tcpdump, my application at the same moment gets no more multicast packets.
I can see with netstat -g the joined MC-address (if app is active)
multicast route is set up properly.
i'm using VLAN (VLAN packets routed to eth0.3)
Any ideas ?
Thanks
Robert
Last edited by nathan2225; 02-06-2008 at 01:27 PM.
A am also having that same problem, did you ever get it to work?
I did a work around to get it working on my box. When you use vlaning (trunking) you can make a "Native" vlan on a trunked port. A native vlan will use no tag, just make sure your switch has the same native vlan. After that add the vlans and it will still work on the native vlan.
But I am interested if you ever did get it working
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