![]() This mechanism enables two IPv6 nodes on the same link to communicate without any configuration, making link-local addresses widely used in neighbor discovery and stateless address configuration.ĭevices do not forward IPv6 packets with the link-local address as a source or destination address to devices on different links. Figure 6-3 shows the link-local address format.Ī solicited-node multicast address is generated using an IPv6 unicast or anycast address of a node. ![]() When a node has an IPv6 unicast or anycast address, a solicited-node multicast address is generated for the node, and the node joins the multicast group that corresponds to its IPv6 unicast or anycast address. Each unicast or anycast address corresponds to a single solicited-node multicast address, which is often used in neighbor discovery and duplicate address detection. IPv6 does not support broadcast addresses or Address Resolution Protocol (ARP). In IPv6, Neighbor Solicitation (NS) packets are used to resolve IP addresses to MAC addresses. When a node needs to resolve an IPv6 address to a MAC address, it sends an NS packet in which the destination IP address is the solicited-node multicast address corresponding to the IPv6 address.
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