On Mon, Mar 1, 2010 at 2:06 PM, Robert Kulagowski <rkulagow@xxxxxxxxx> wrote: > On Mon, Mar 1, 2010 at 11:45 AM, Robert Kulagowski <rkulagow@xxxxxxxxx> wrote: >>> what kind of endpoint are you using ? Are you sure it is using >>> multicast to register ? Most endpoints will use a simple broadcast to >>> find the gatekeeper and you have to make sure your IP routing lets >>> those through. >> >> The endpoints are Polycom HDX 4002 and Viewstation 512. >> >> When the autodiscover feature of my Tandberg VCS is enabled, the units >> can register with the VCS. >> >> All devices are in the same VLAN for testing purposes. >> >> There is a multicast route: >> root@gk4:~# route -n >> Kernel IP routing table >> Destination Gateway Genmask Flags Metric Ref Use Iface >> 10.244.22.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0 >> 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0 >> 224.0.0.0 0.0.0.0 240.0.0.0 U 0 0 0 eth0 >> 0.0.0.0 10.244.22.1 0.0.0.0 UG 0 0 0 eth0 >> > > netstat shows that the host thinks that it's joining groups: > > rkulagow@gk2:~$ netstat -gn > IPv6/IPv4 Group Memberships > Interface RefCnt Group > --------------- ------ --------------------- > lo 1 224.0.0.1 > eth0 1 224.0.1.41 > eth0 1 224.0.0.251 > eth0 1 224.0.0.1 > lo 1 ff02::1 > eth0 1 ff02::1:ff2c:fcd1 > eth0 1 ff02::1 > wlan0 1 ff02::1 > > Are there any other settings that need to be enabled on the Ubuntu > host? There is no firewall running which would block multicast > packets as far as I can tell. > > I'm going to try to run something like VLC to stream multicast and > ensure that I can receive it on a second system using the same. VLC seems to be working: I'm using a VLC on system #1 to transmit an audio file on 239.255.12.42 and the multicast receive is working on a second system. rkulagow@gk4:~$ netstat -gn IPv6/IPv4 Group Memberships Interface RefCnt Group --------------- ------ --------------------- lo 1 224.0.0.1 eth0 1 239.255.12.42 eth0 1 224.0.0.251 eth0 1 224.0.0.1 lo 1 ff02::1 eth0 1 ff02::1:ffb3:364c eth0 1 ff02::1 wlan0 1 ff02::1 I can hear audio coming out of the speaker on the second system, and a wireshark capture shows packets are being transmitted on 239.255.12.42 So the multicast portion of the OS and the network infrastructure seem to be working OK. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_name=openh323gk-users Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
