Закину сюда, для последующего анализа, а то на работу пора :)
09:00:28.113002 STP 802.1d, Config, Flags [none], bridge-id 8000.08:62:66:8d:0f:b0.8001, length 43
09:00:28.246896 IP 192.168.2.181.5353 > 224.0.0.251.5353: 0 [2q] PTR (QM)? _9381F2BD._sub._googlecast._tcp.local. PTR (QM)? _googlecast._tcp.local. (61)
09:00:30.113107 STP 802.1d, Config, Flags [none], bridge-id 8000.08:62:66:8d:0f:b0.8001, length 43
09:00:31.565322 IP android-8123c11ee1f5a4d8 > 224.0.0.251: igmp v2 report 224.0.0.251
09:00:32.113164 STP 802.1d, Config, Flags [none], bridge-id 8000.08:62:66:8d:0f:b0.8001, length 43
09:00:34.113246 STP 802.1d, Config, Flags [none], bridge-id 8000.08:62:66:8d:0f:b0.8001, length 43