Question

1. Explain why, on a typical Ethernet, if the original IPv6 host address was obtained via SLAAC then the LAN multicast group corresponding to the host’s solicited-node multicast addresses is likely to be small, in many cases consisting of one host only. (Packet delivery to small LAN multicast groups can be much more efficient than delivery to large multicast groups.)

2. What steps might a DHCPv6 server take to ensure that, for the IPv6 addresses it hands out, the LAN multicast groups corresponding to the host addresses’ solicited-node multicast addresses will be small?

Answer 1

1. IPV6 is specifically designed for the effective performance,but in some scenarios ipv4 sends broadcast whereas ipv6 sends multicast.The slaac is used to facilitate this,there are some scenarios where slaac address are used with ipv4.it is mainly used for duplicate detection to check if anyone is using the address or it tis a unspecified address and it is also used for converting ipv6 to establish the bidirectional connectivity.

2.DHCPv6 is used for assigning addresses for servers and routers,In the same fashion whereas slaac is used for individual or ordinary hosts. DHCPv6 is very effective in solving the auto configuration problem when compared with slaac. in ipv4 based the entire address of the dynamic host configuration protocol is handed cover by the DHCPV6.