Hi everybody.
An ipv6 host performs dad before starts using ipv6 address. For example our router is an ipv6 client performing DAD as shown below:
:: ff02::1:ff00:2222 ICMPv6 78 Neighbor Solicitation for fe80::200:ff:fe00:2222
fe80::200:ff:fe00:2222 ff02::1 ICMPv6 86 Neighbor Advertisement fe80::200:ff:fe00:2222 (ovr) is at 00:00:00:00:22:22
fe80::200:ff:fe00:2222 ff02::16 ICMPv6 90 Multicast Listener Report Message v
What is the purpose of " Multicast listener report message" above ?
The " multicast listener report message" in expanded form shown below:
No. Time Source Destination Protocol Length Info
11 58.984000 fe80::200:ff:fe00:2222 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
Frame 11: 90 bytes on wire (720 bits), 90 bytes captured (720 bits)
Ethernet II, Src: 00:00:00_00:22:22 (00:00:00:00:22:22), Dst: IPv6mcast_00:00:00:16 (33:33:00:00:00:16)
Internet Protocol Version 6, Src: fe80::200:ff:fe00:2222 (fe80::200:ff:fe00:2222), Dst: ff02::16 (ff02::16)
Internet Control Message Protocol v6
Type: Multicast Listener Report Message v2 (143)
Code: 0
Checksum: 0x2bc5 [correct]
Reserved: 0000
Number of Multicast Address Records: 1
Multicast Address Record Changed to exclude: ff02::1:ff00:2222
Record Type: Changed to exclude (4)
Aux Data Len: 0
Number of Sources: 0
Multicast Address: ff02::1:ff00:2222 (ff02::1:ff00:2222)
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Thanks and have a great weekend.
