IPv6 On-Link Determination – What Is It And Why Do We Need It?

IPv6 On-Link Determination – What Is It And Why Do We Need It?:
When an IPv4/IPv6 host wants to send a packet to another host, it has to answer the following simple questions:

• Can I reach the destination IP address directly (is the destination on the same LAN/subnet)?
• If not, who will help me forward the packet (who is the first-hop router)?

In IPv4 world, the host can get all the information it needs through DHCP. In IPv6 world, things are way more complex (but also way more correct if you’re a theoretician).
Read more ...

DIGITAL JUICE