On my AIX machine if I run netstat -ia I get:Name  Mtu   Network     Address           Ipkts Ierrs    Opkts Oerrs  Collen0   1500  link#2      1e.18.1.1e.78.2    385229     0  1091655     0     0                        01:00:5e:7f:ff:fd                        01:00:5e:00:00:01en0   1500  10.22.8     xxxxxxx1           385229     0  1091655     0     0                        239.255.255.253                            224.0.0.1          en1   1500  link#3      1e.18.1.1e.78.3   1045023     0   420863     0     0                        01:00:5e:00:00:01en1   1500  10.21.8     xxxxxxx2           1045023     0   420863     0     0                        224.0.0.1          en2   1500  link#4      1e.18.1.1e.78.4     59125     0    58326     0     0                        01:00:5e:00:00:01en2   1500  10.21.16    xxxxxxx3            59125     0    58326     0     0                        224.0.0.1          lo0   16896 link#1                         778096     0   586450     0     0lo0   16896 127         loopback           778096     0   586450     0     0                        239.192.0.0                                224.0.0.1          lo0   16896 ::1%1                          778096     0   586450     0     0                        ff01::1                                  ff02::1:ff00:1  I'm testing a cluster application using multicast for communicating with other peers, anyway it seems to work only if I use as interface address the lo0. I cannot understand why....I'm using 239.192.0.0for multicast.Can anyone give me some explanation?
AIX multihomed multicast
networking;ip;aix;multicast