host 10
host 11
host 12
host 13
Host 10 leaves group. Sends membership report, router sends two closely-spaced group-specific queries, and then prunes the traffic. The switch just passes the packets verbatim between host 10 and the router. However it properly supresses all this traffic to the non-group member ports (hosts 11, 12) with the exception of the group-specific query which they see in addition to general queries once a minute. The group-specific query should technically not be sent to the non-member hosts since they have not joined that group. | |
host 10 | No. Time Source Destination Protocol Info 86 367.803719 128.59.7.10 224.0.0.22 IGMP V3 Membership Report Frame 86 (54 bytes on wire, 54 bytes captured) Ethernet II, Src: 00:00:86:51:bd:b2, Dst: 01:00:5e:00:00:16 Internet Protocol, Src Addr: 128.59.7.10 (128.59.7.10), Dst Addr: 224.0.0.22 (224.0.0.22) Internet Group Management Protocol IGMP Version: 3 Type: Membership Report (0x22) Header checksum: 0xf4f1 (correct) Num Group Records: 1 Group Record : 224.5.6.7 Change To Include Mode |
host 13 | No. Time Source Destination Protocol Info 86 367.827517 128.59.7.10 224.0.0.22 IGMP V3 Membership Report Frame 86 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:00:86:51:bd:b2, Dst: 01:00:5e:00:00:16 Internet Protocol, Src Addr: 128.59.7.10 (128.59.7.10), Dst Addr: 224.0.0.22 (224.0.0.22) Internet Group Management Protocol IGMP Version: 3 Type: Membership Report (0x22) Header checksum: 0xf4f1 (correct) Num Group Records: 1 Group Record : 224.5.6.7 Change To Include Mode |
host 13 | No. Time Source Destination Protocol Info 87 367.828011 128.59.7.1 224.5.6.7 IGMP V3 Membership Query Frame 87 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.5.6.7 (224.5.6.7) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 1.0 sec (0x0a) Header checksum: 0x06ad (correct) Multicast Address: 224.5.6.7 (224.5.6.7) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 10 | No. Time Source Destination Protocol Info 87 367.805021 128.59.7.1 224.5.6.7 IGMP V3 Membership Query Frame 87 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.5.6.7 (224.5.6.7) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 1.0 sec (0x0a) Header checksum: 0x06ad (correct) Multicast Address: 224.5.6.7 (224.5.6.7) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 11 & 12 | No. Time Source Destination Protocol Info 8 367.797131 128.59.7.1 224.5.6.7 IGMP V3 Membership Query Frame 8 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.5.6.7 (224.5.6.7) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 1.0 sec (0x0a) Header checksum: 0x06ad (correct) Multicast Address: 224.5.6.7 (224.5.6.7) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 13 | No. Time Source Destination Protocol Info 88 368.816754 128.59.39.150 224.5.6.7 UDP Source port: 34145 Destination port: 8910 Frame 88 (1512 bytes on wire, 1500 bytes captured) Ethernet II, Src: 00:08:7c:d0:08:40, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.39.150 (128.59.39.150), Dst Addr: 224.5.6.7 (224.5.6.7) User Datagram Protocol, Src Port: 34145 (34145), Dst Port: 8910 (8910) Data (1458 bytes) |
host 10 | No. Time Source Destination Protocol Info 88 368.793560 128.59.39.150 224.5.6.7 UDP Source port: 34145 Destination port: 8910 Frame 88 (1512 bytes on wire, 1500 bytes captured) Ethernet II, Src: 00:08:7c:d0:08:40, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.39.150 (128.59.39.150), Dst Addr: 224.5.6.7 (224.5.6.7) User Datagram Protocol, Src Port: 34145 (34145), Dst Port: 8910 (8910) Data (1458 bytes) |
host 13 | No. Time Source Destination Protocol Info 89 369.568390 128.59.7.1 224.5.6.7 IGMP V3 Membership Query Frame 89 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.5.6.7 (224.5.6.7) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 1.0 sec (0x0a) Header checksum: 0x06ad (correct) Multicast Address: 224.5.6.7 (224.5.6.7) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 10 | No. Time Source Destination Protocol Info 89 369.545411 128.59.7.1 224.5.6.7 IGMP V3 Membership Query Frame 89 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.5.6.7 (224.5.6.7) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 1.0 sec (0x0a) Header checksum: 0x06ad (correct) Multicast Address: 224.5.6.7 (224.5.6.7) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 11 & 12 | No. Time Source Destination Protocol Info 9 369.537519 128.59.7.1 224.5.6.7 IGMP V3 Membership Query Frame 9 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.5.6.7 (224.5.6.7) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 1.0 sec (0x0a) Header checksum: 0x06ad (correct) Multicast Address: 224.5.6.7 (224.5.6.7) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 13 | No. Time Source Destination Protocol Info 90 369.816745 128.59.39.150 224.5.6.7 UDP Source port: 34145 Destination port: 8910 Frame 90 (1512 bytes on wire, 1500 bytes captured) Ethernet II, Src: 00:08:7c:d0:08:40, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.39.150 (128.59.39.150), Dst Addr: 224.5.6.7 (224.5.6.7) User Datagram Protocol, Src Port: 34145 (34145), Dst Port: 8910 (8910) Data (1458 bytes) |
host 10 | No. Time Source Destination Protocol Info 90 369.793532 128.59.39.150 224.5.6.7 UDP Source port: 34145 Destination port: 8910 Frame 90 (1512 bytes on wire, 1500 bytes captured) Ethernet II, Src: 00:08:7c:d0:08:40, Dst: 01:00:5e:05:06:07 Internet Protocol, Src Addr: 128.59.39.150 (128.59.39.150), Dst Addr: 224.5.6.7 (224.5.6.7) User Datagram Protocol, Src Port: 34145 (34145), Dst Port: 8910 (8910) Data (1458 bytes) |
host 13 | No. Time Source Destination Protocol Info 91 422.767634 128.59.7.1 224.0.0.1 IGMP V3 Membership Query Frame 91 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:00:00:01 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.0.0.1 (224.0.0.1) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 10.0 sec (0x64) Header checksum: 0xec5f (correct) Multicast Address: 0.0.0.0 (0.0.0.0) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 10 | No. Time Source Destination Protocol Info 91 422.744694 128.59.7.1 224.0.0.1 IGMP V3 Membership Query Frame 91 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:00:00:01 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.0.0.1 (224.0.0.1) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 10.0 sec (0x64) Header checksum: 0xec5f (correct) Multicast Address: 0.0.0.0 (0.0.0.0) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |
host 11 & 12 | No. Time Source Destination Protocol Info 10 422.736964 128.59.7.1 224.0.0.1 IGMP V3 Membership Query Frame 10 (60 bytes on wire, 60 bytes captured) Ethernet II, Src: 00:d0:03:66:80:0a, Dst: 01:00:5e:00:00:01 Internet Protocol, Src Addr: 128.59.7.1 (128.59.7.1), Dst Addr: 224.0.0.1 (224.0.0.1) Internet Group Management Protocol IGMP Version: 3 Type: Membership Query (0x11) Max Response Time: 10.0 sec (0x64) Header checksum: 0xec5f (correct) Multicast Address: 0.0.0.0 (0.0.0.0) QRV=2 S=Do not supress router side processing QQIC: 60 Num Src: 0 |