Hi Steven - Thanks for the response. These are definitely not unix domain sockets: udp 0 0 0.0.0.0:60174 0.0.0.0:* 16198/corosync udp 0 0 0.0.0.0:49193 0.0.0.0:* 16198/corosync udp 0 0 192.168.40.19:694 0.0.0.0:* 16198/corosync udp 0 0 192.168.10.19:694 0.0.0.0:* 16198/corosync udp 0 0 0.0.0.0:34366 0.0.0.0:* 16198/corosync udp 0 0 0.0.0.0:35409 0.0.0.0:* 16198/corosync Here is the related corosync config section: interface { member { memberaddr: 192.168.10.20 } member { memberaddr: 192.168.10.19 } ringnumber: 0 bindnetaddr: 192.168.10.0 mcastport: 694 ttl: 1 } interface { member { memberaddr: 192.168.40.220 } member { memberaddr: 192.168.40.19 } ringnumber: 1 bindnetaddr: 192.168.40.0 mcastport: 694 ttl: 1 } transport: udpu rrp_mode: passive -----Original Message----- From: Steven Dake [mailto:sdake@xxxxxxxxxx] Sent: Tuesday, May 01, 2012 11:22 AM To: Bryan Bartone Cc: discuss@xxxxxxxxxxxx Subject: Re: corosync udpu mystery ports On 05/01/2012 08:10 AM, Bryan Bartone wrote: > First, thanks for taking the time to read this email. I am using > corosync and pacemaker on a security appliance we manufacture. I am > running udpu mode. I see that for each interface I define, there is a > udp listening socket using the mcastport I defined in corosync.conf > and two other ephemeral listening ports. The mcastaddr port is bound > to the interface I defined in corosync.conf. The ephemeral ports are bound to > all interfaces. I would like to know what the purpose of those ports > are, and why they are bound to 0.0.0.0. Thanks. > > > > > > _______________________________________________ > discuss mailing list > discuss@xxxxxxxxxxxx > http://lists.corosync.org/mailman/listinfo/discuss Probably a bug (udpu is a new feature). There should be one port for incoming packets and one port for outgoing packets, all bound to the proper interface. One of the listening ports may be a unix domain socke (used to setup shared memory ipc)t, are you sure that isn't the case? _______________________________________________ discuss mailing list discuss@xxxxxxxxxxxx http://lists.corosync.org/mailman/listinfo/discuss