Réseau - Adressage IPv6

Difficulté : Intermédiaire
Notions : adressage réseau, protocole IP, IPv6
Lesson Plan: Introduction to IPv6
1. Why IPv6?
The limitations of IPv4 (address exhaustion).
The need for a larger address space.
2. IPv6 Basics
Address format (128-bit vs. IPv4’s 32-bit).
Types of IPv6 addresses: Unicast, Multicast, and Anycast.
Address notation and shorthand representation.
3. IPv6 vs. IPv4
Improved routing efficiency.
No need for NAT (Network Address Translation).
Auto-configuration capabilities.
Enhanced security features (IPSec integration).
4. IPv6 Addressing and Subnetting
Prefix notation (e.g., 
/64, 
/128).
Global unicast addresses vs. link-local addresses.
5. IPv6 Implementation and Transition Mechanisms
Dual-stack approach.
Tunneling methods (6to4, Teredo, etc.).
NAT64 for IPv4-to-IPv6 compatibility.
6. Practical Exercises
Configuring IPv6 on network devices.
Testing IPv6 connectivity and troubleshooting.
7. DHCP in IPv6 (DHCPv6)
Differences from IPv4 DHCP
IPv6 supports both stateful and stateless address configuration.
IPv6 devices can use SLAAC (Stateless Address Autoconfiguration) or DHCPv6 for address assignment.
DHCPv6 Modes
Stateful DHCPv6: Similar to IPv4 DHCP, provides IP addresses and other network configurations dynamically.
Stateless DHCPv6: Does not assign IP addresses but provides additional configuration details like DNS servers.
Interaction with Router Advertisements (RA)
IPv6 routers send RA messages, indicating whether devices should use SLAAC, DHCPv6, or both.
Flags in RA messages control whether clients should request addresses via DHCPv6.
Practical Considerations
Configuring DHCPv6 servers and clients.
Using prefix delegation for automatic subnetting.
Understanding the role of Relay Agents in DHCPv6 networks.