Is EUI-64 stateless?
Stateless autoconfiguration or SLAAC SLAAC is a method in which the host or router interface is assigned a 64-bit prefix, and then the last 64 bits of its address are derived by the host or router with help of EUI-64 process which is described in next few lines. SLAAC uses NDP protocol to work.
What is used in the EUI-64 process to create IPv6?
Answers Explanation & Hints: The EUI-64 process uses the MAC address of an interface to construct an interface ID (IID). Because the MAC address is only 48 bits in length, 16 additional bits (FF:FE) must be added to the MAC address to create the full 64-bit interface ID.
What does EUI-64 stand for in IPv6?
IPv6 EUI-64 explained EUI-64 (Extended Unique Identifier) is a method we can use to automatically configure IPv6 host addresses. An IPv6 device will use the MAC address of its interface to generate a unique 64-bit interface ID. However, a MAC address is 48 bit and the interface ID is 64 bit.
Why does iteslf use the EUI-64 identifier?
Extended Unique Identifier (EUI), as per RFC2373, allows a host to assign iteslf a unique 64-Bit IP Version 6 interface identifier (EUI-64). This feature is a key benefit over IPv4 as it eliminates the need of manual configuration or DHCP as in the world of IPv4. The IPv6 EUI-64 format address is obtained through the 48-bit MAC address.
How is EUI-64 generated from a MAC address?
The 16-bit 0xFFFE is then inserted between these two 24-bits for the 64-bit EUI address. IEEE has chosen FFFE as a reserved value which can only appear in EUI-64 generated from the an EUI-48 MAC address. Here is an example showing how a the MAC Address is used to generate EUI.
How does Windows generate link-local addresses ( EUI-64 )?
We can activate the EUI-64 process, but by default Windows uses a random value for generating IPv6 Link-Local Addresses. Let’s take a look at a Cisco router. The IPv6 address of this router is calculated from the MAC address of the interface. The MAC address is split into two parts and then FFFE is inserted in the middle of these two parts.