Now I turned of igmp snooping in the config switch part and iptv box finished booting at 20:11:25:
root@OpenWrt:~# tcpdump -n -i eth1.1 'igmp'
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth1.1, link-type EN10MB (Ethernet), capture size 262144 bytes
18:09:59.915303 IP 169.254.165.153 > 224.0.0.251: igmp v2 report 224.0.0.251
18:10:02.288563 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:03.323857 IP 192.168.1.101 > 224.0.0.2: igmp leave 224.0.0.251
18:10:03.324832 IP 192.168.1.1 > 224.0.0.251: igmp query v2 [gaddr 224.0.0.251]
18:10:03.345412 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:10:07.213134 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:10:07.494220 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:10.498943 IP 192.168.1.1 > 224.0.0.251: igmp query v2 [gaddr 224.0.0.251]
18:10:13.503317 IP 192.168.1.1 > 224.0.0.251: igmp query v2 [gaddr 224.0.0.251]
18:10:16.507112 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:10:17.603539 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:10:19.494764 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:19.595733 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:10:22.315894 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:29.577143 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:10:30.025904 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:10:32.903130 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:10:34.345306 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:37.350969 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:10:38.284163 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:42.076126 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:10:44.954192 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:10:46.303389 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:10:46.605889 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:48.291201 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:10:53.686600 IP 192.168.1.195 > 224.0.0.22: igmp v3 report, 1 group record(s)
18:10:53.758773 IP 192.168.1.195 > 224.0.0.22: igmp v3 report, 1 group record(s)
18:10:54.076360 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:10:56.763159 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:10:57.207106 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:10:57.786992 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:01.756429 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:11:02.963288 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:04.297220 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:09.409674 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:11:09.826677 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:11.504139 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:11:16.515961 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:16.783568 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:17.116701 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:11:19.658469 IP 192.168.1.200 > 224.0.0.2: igmp leave 224.0.0.251
18:11:19.756234 IP 192.168.1.200 > 224.0.0.2: igmp leave 224.0.0.251
18:11:21.298108 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:11:24.310966 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:11:28.867845 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:11:33.260632 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:11:34.996347 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:38.728651 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:40.812421 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:42.004366 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:11:42.244214 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:11:43.357056 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:11:46.014811 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:11:46.527119 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:46.796491 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:46.804491 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:11:48.164145 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:49.083918 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:11:49.437134 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:11:59.231960 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:11:59.320137 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:11:59.799695 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:12:01.505696 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:12:08.003941 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
18:12:08.739791 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:12:08.957356 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:12:12.411252 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:12:12.787392 IP 192.168.1.149 > 239.255.255.250: igmp v2 report 239.255.255.250
18:12:14.305020 IP 192.168.1.107 > 224.0.23.12: igmp v2 report 224.0.23.12
18:12:14.979869 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
18:12:15.460480 IP 192.168.1.20 > 239.255.255.250: igmp v2 report 239.255.255.250
18:12:15.807583 IP 192.168.1.195 > 232.0.20.2: igmp v2 report 232.0.20.2
18:12:21.117548 IP 192.168.1.101 > 224.0.0.251: igmp v2 report 224.0.0.251
18:12:22.540302 IP 192.168.1.1 > 224.0.0.1: igmp query v2
18:12:23.192018 IP 192.168.1.195 > 239.255.255.250: igmp v2 report 239.255.255.250
^C
75 packets captured
79 packets received by filter
0 packets dropped by kernel
root@OpenWrt:~#
root@OpenWrt:~# tcpdump -i eth1.1 dst net 224.0.0.0/4
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth1.1, link-type EN10MB (Ethernet), capture size 262144 bytes
18:13:37.450602 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.451601 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.453115 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.454120 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.455627 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.456882 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.458614 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.460112 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.461620 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.462564 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.463554 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.465056 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.466298 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.467798 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.468801 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.470386 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.471798 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.472803 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.473804 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.475547 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.476557 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.478051 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.478552 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.480052 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.481566 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.482547 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.483602 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.484843 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.486342 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.487353 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.488834 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.490520 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.491845 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.492844 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.494590 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.496091 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.497597 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.498597 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.500087 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.501609 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.502629 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.503846 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.505364 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.506466 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.507354 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.508342 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.509844 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.510853 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.512096 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.513097 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.514101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.515598 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.516595 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.518108 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.519347 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.521114 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.522094 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.523102 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.524607 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.525749 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.527104 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.528594 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.529608 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.530927 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.532852 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.533852 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.535354 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.536344 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.537851 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.539094 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.540590 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.541096 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.542106 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.543605 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.545096 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.546091 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.547603 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.548348 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.550473 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.551350 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.552853 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.553848 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.555454 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.556874 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.558099 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.559599 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.560603 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.562102 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.563106 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.564597 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.566090 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.567347 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.568349 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.569847 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.570851 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.571848 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.573350 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.574347 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.575597 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.576598 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.577599 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.579106 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.580616 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.581602 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.583105 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.584093 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.585113 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.587105 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.588112 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.589602 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.591095 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.592100 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.593585 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.594841 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.596346 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.597848 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.599354 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.600408 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.601356 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.602791 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.603548 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.605041 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.606039 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.607554 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.608538 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.609545 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.611041 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.612038 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.613294 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.614794 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.616300 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.617800 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.619377 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.620791 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.622039 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.622548 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.624039 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.625544 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.626550 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.628040 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.629534 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.631385 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.631903 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.632877 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.634365 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.635378 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.636864 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.637864 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.638877 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.640124 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.641634 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.642633 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.644123 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.645116 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.646622 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.647628 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.649125 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.650700 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.652109 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.653102 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.655095 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.656220 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.657861 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.658861 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.660437 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.661843 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.662847 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.663856 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.665350 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.666345 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.667101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.668604 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.669607 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.671106 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.672109 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.673592 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.674606 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.675857 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.677353 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.678854 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.680470 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.681358 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.682356 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.683850 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.685599 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.687103 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.688101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.689597 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.690608 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.692101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.693102 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.694849 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.695356 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.696859 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.697860 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.699351 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.700452 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.701360 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.702868 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.704104 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.705100 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.706097 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.707602 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.708603 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.709623 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.711124 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.713107 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.714111 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.715606 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.717097 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.718594 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.719607 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.721095 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.722373 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.723357 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.724846 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.726363 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.727592 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.728375 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.729863 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.730555 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.732053 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.733055 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.734540 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.736042 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.736546 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.738544 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.739798 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.740797 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.742303 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.743302 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.744792 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.745799 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.747299 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.748545 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.750046 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.751054 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.752612 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.754101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.755600 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.757097 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.758352 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.759850 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.761371 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.762365 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.762867 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.764364 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.765363 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.766611 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.768101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.769105 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.770105 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.771618 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.772612 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.774111 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.775122 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.776850 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.778136 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.779607 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.781114 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.782600 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.783601 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.784601 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.785857 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.787349 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.788355 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.790022 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.791362 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.792850 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.793853 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.795092 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.796111 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.797101 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.798600 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.799597 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.800615 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.802105 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.803099 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.804851 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.805858 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
18:13:37.806852 IP 87.141.215.251.4000 > 232.0.20.2.10000: UDP, length 1328
^C
281 packets captured
284 packets received by filter
0 packets dropped by kernel
root@OpenWrt:~#
Now the stream works and floods my network.