Tiens voila a quoi ca ressemble quand ca "marche" :
Tu dois voir ca dans le shell ouvert sur igmpproxy :
root@ubnt:~# igmpproxy -v -d /etc/igmpproxy.conf
20:15:28.988340 adding VIF, Ix 0 Fl 0x0 IP 0xc0a80101 eth0, Threshold: 1, Ratelimit: 0
20:15:28.989351 adding VIF, Ix 1 Fl 0x0 IP 0xc0a80201 eth2, Threshold: 1, Ratelimit: 0
20:15:28.989996 adding VIF, Ix 2 Fl 0x0 IP 0x0a36389a br0, Threshold: 1, Ratelimit: 0
20:15:28.990577 adding VIF, Ix 3 Fl 0x0 IP 0x0aafe3e7 eth1.851, Threshold: 1, Ratelimit: 0
20:15:28.991171 adding VIF, Ix 4 Fl 0x0 IP 0x51f9ea9c pppoe0, Threshold: 1, Ratelimit: 0
20:15:28.991927 joinMcGroup: 224.0.0.2 on eth0
20:15:28.992539 joinMcGroup: 224.0.0.2 on eth2
20:15:28.993128 joinMcGroup: 224.0.0.2 on eth1.851
20:15:28.993715 joinMcGroup: 224.0.0.2 on pppoe0
20:15:28.995540 RECV Membership query from 192.168.1.1 to 224.0.0.1
20:15:28.995864 RECV Membership query from 192.168.2.1 to 224.0.0.1
20:15:28.996188 RECV Membership query from 10.175.227.231 to 224.0.0.1
20:15:28.996524 RECV Membership query from 81.249.234.156 to 224.0.0.1
20:15:29.010275 RECV V2 member report from 192.168.1.1 to 224.0.0.2
20:15:29.010548 The IGMP message was from myself. Ignoring.
20:15:29.010869 RECV V2 member report from 192.168.2.1 to 224.0.0.2
20:15:29.011137 The IGMP message was from myself. Ignoring.
20:15:29.011472 RECV V2 member report from 81.249.234.156 to 224.0.0.2
20:15:29.011743 The IGMP message was from myself. Ignoring.
20:15:31.510062 RECV V2 member report from 192.168.1.1 to 239.255.255.250
20:15:31.510316 The IGMP message was from myself. Ignoring.
20:15:31.510675 Inserted route table entry for 239.255.255.250 on VIF #-1
20:15:31.511008 Adding MFC: 192.168.1.1 -> 239.255.255.250, InpVIf: 2
20:15:32.010077 RECV V2 member report from 10.175.227.231 to 224.0.0.2
20:15:32.010357 The IGMP message was from myself. Ignoring.
20:15:33.321174 RECV V2 member report from 192.168.2.40 to 239.255.255.250
20:15:33.321881 Updated route entry for 239.255.255.250 on VIF #1
20:15:33.322875 Adding MFC: 192.168.1.1 -> 239.255.255.250, InpVIf: 2
20:15:33.323753 joinMcGroup: 239.255.255.250 on br0
20:15:33.325308 The origin for route 239.255.255.250 changed from 192.168.1.1 to 192.168.2.40
20:15:33.326324 Adding MFC: 192.168.2.40 -> 239.255.255.250, InpVIf: 2
20:15:33.340242 RECV V2 member report from 10.54.56.154 to 239.255.255.250
20:15:33.340910 The IGMP message was from myself. Ignoring.
20:15:33.342088 Route activation request from 10.54.56.154 for 239.255.255.250 is from myself. Ignoring.
20:15:35.190033 RECV V2 member report from 192.168.2.24 to 232.0.1.181
20:15:35.190300 Inserted route table entry for 232.0.1.181 on VIF #1
20:15:35.190472 joinMcGroup: 232.0.1.181 on br0
20:15:35.210154 RECV V2 member report from 10.54.56.154 to 232.0.1.181
20:15:35.210369 The IGMP message was from myself. Ignoring.
20:15:35.210571 Route activation request from 10.54.56.154 for 232.0.1.181 is from myself. Ignoring.
20:15:35.242543 Adding MFC: 80.12.194.107 -> 232.0.1.181, InpVIf: 2
20:15:37.630080 RECV V2 member report from 81.249.234.156 to 233.89.188.1
20:15:37.630295 The IGMP message was from myself. Ignoring.
20:15:37.630543 Inserted route table entry for 233.89.188.1 on VIF #-1
20:15:37.630800 Adding MFC: 81.249.234.156 -> 233.89.188.1, InpVIf: 2
20:15:38.602648 The origin for route 239.255.255.250 changed from 192.168.2.40 to 192.168.2.2
20:15:38.603362 Adding MFC: 192.168.2.2 -> 239.255.255.250, InpVIf: 2
20:15:43.230253 RECV V2 member report from 10.54.56.154 to 239.255.255.250
20:15:43.230469 The IGMP message was from myself. Ignoring.
20:15:43.830079 RECV V2 member report from 10.54.56.154 to 232.0.1.181
20:15:43.830294 The IGMP message was from myself. Ignoring.
20:15:44.295841 The origin for route 239.255.255.250 changed from 192.168.2.2 to 192.168.2.26
20:15:44.296428 Adding MFC: 192.168.2.26 -> 239.255.255.250, InpVIf: 2
20:15:45.970081 RECV V2 member report from 10.54.56.154 to 239.255.255.250
20:15:45.970298 The IGMP message was from myself. Ignoring.
20:15:45.970503 Route activation request from 10.54.56.154 for 239.255.255.250 is from myself. Ignoring.
20:15:46.624963 RECV Membership query from 0.0.0.0 to 224.0.0.1
20:15:49.620209 RECV V2 member report from 10.54.56.154 to 232.0.1.181
20:15:49.620424 The IGMP message was from myself. Ignoring.
20:15:49.620625 Route activation request from 10.54.56.154 for 232.0.1.181 is from myself. Ignoring.
^C20:15:53.123220 select() failure; Errno(4): Interrupted system call
20:15:53.123641 Got a interupt signal. Exiting.
20:15:53.123865 Removing MFC: 80.12.194.107 -> 232.0.1.181, InpVIf: 2
20:15:53.124046 leaveMcGroup: 232.0.1.181 on br0
20:15:53.124891 Removing MFC: 81.249.234.156 -> 233.89.188.1, InpVIf: 2
20:15:53.125405 Removing MFC: 192.168.2.26 -> 239.255.255.250, InpVIf: 2
20:15:53.125636 leaveMcGroup: 239.255.255.250 on br0
20:15:53.126245 All routes removed. Routing table is empty.
20:15:53.127744 Shutdown complete….
Dans le 2e si tu fais un mroute :
root@ubnt:~# ip mroute
(192.168.2.40, 239.255.255.250) Iif: br0 Oifs: eth2
(192.168.2.26, 239.255.255.250) Iif: br0 Oifs: eth2
(192.168.1.1, 239.255.255.250) Iif: br0 Oifs: eth2
(192.168.2.2, 239.255.255.250) Iif: br0 Oifs: eth2
(80.12.194.107, 232.0.1.181) Iif: br0 Oifs: eth2