Ok, I figured it out. It looks like Centos 5.5 is blocking multicast traffic. Tweaking iptables made my app work.
thanks, Thomas On Fri, Oct 19, 2012 at 12:07 PM, Thomas Loockx <[email protected]> wrote: > I've enabled debugging in openpgm, but it outputs not much really: > > arg: client > Running as client > Minor: OpenPGM 5.1.118 (1369) 2012-10-18 17:56:46 Linux x86_64 > Minor: Detected 4 available 4 online 4 configured CPUs. > Minor: Using TSC timer. > Minor: TSC frequency set to 1200 MHz > Trace: Opening UDP encapsulated sockets. > Trace: Set socket sharing. > Trace: Request socket packet-info. > Trace: Assuming IP header size of 20 bytes > Trace: Assuming UDP header size of 8 bytes > Trace: Binding receive socket to INADDR_ANY > Trace: Binding send socket to interface index 2 > Trace: Join multicast group 239.0.0.1 on interface index 2 > Trace: Multicast send interface set to 10.0.0.200 index 2 > > I guess multicast is working fine on my network because I actually see > all the multicast packets appearing on my network. > > thanks, > Thomas > > On Fri, Oct 19, 2012 at 11:20 AM, Steven McCoy <[email protected]> wrote: >> On 18 October 2012 18:13, Thomas Loockx <[email protected]> wrote: >>> >>> Further investigation shows that on the server side IGMP joins are >>> received to join the multicast group. And I can see the multicast >>> traffic on the client side as well. It seems that the multicast >>> traffic is not "picked up" by zeromq. >> >> >> For diagnosis first try iperf or netperf so see if multicast is working >> well. If that's good then try building OpenPGM with Scons and using the >> bundled tools for testing. There are some changes upstream to fix some >> unusual characteristics of some platforms. >> >> You can try setting PGM_LOG_LEVEL_DEBUG for additional tracing but may >> require a debug build for productive notes. >> >> Chalk it on a todo list for a multicast debug tool. >> >> -- >> Steve-o >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
