IPv6 Multicast Groups for Interface Configuration

DE.

When an interface is configured with IPv6 address, it automatically joins the all nodes (FF02::1) and solicited-node (FF02::1:FFxx:xxxx) multicast groups.

The all- node group is used to communicate with all interfaces on the local link, and the solicited-nodes multicast group is required for link-layer address resolution.

Routers also join a third multicast group, the all-routers group (FF02::2)

When configuring IPv6 on an interface, two IPv6 multicast groups are joined by default:

1. FF02::1: All nodes on the local network segment
2. FF02::2: All routers on the local network segment

FF02::1 is a link-local multicast address used by all nodes on the local network segment to communicate with each other. For example, if a node wants to discover its neighbors or advertise its presence, it sends packets to this multicast address.

FF02::2 is also a link-local multicast address, but it is used by all routers on the local network segment to communicate with each other. For example, if a router wants to discover other routers or advertise its capabilities, it sends packets to this multicast address.

The other answer choices are not valid multicast groups that are joined when configuring IPv6 on an interface.

• 2000::/3 is a global unicast address range, not a multicast group.
• 2002::5 is a valid address, but it is a global unicast address, not a multicast group.
• FC00::/7 is a unique local address (ULA) range, not a multicast group.

Therefore, the correct answers are D. FF02::1 and E. FF02::2.