1

Introduction

• IPv4, a 30-year long success story.
• Problems with IPv4.
• Routing table explosion and addressing space exhaustion.
• Real-time traffic and QoS handling. Efficiency.
• Using CIDR and NAT.
• Using DSCP.

2

IPv6 overview

• IPv4 and IPv6 packet header formats.
• IPv6 extension headers instead of IPv4 options.
• TCP, UDP, and ICMP using IPv6 : what's new ?

3

Addressing scheme

• 128-bit long addresses : address types, address representation, address lifetime.
• Adresses scopes.
• Link local and Global addresses.
• Multicast and Anycast addresses.
• Address allocation, IANA/ICANN, and RIR.

4

Automatic configuration

• New protocols : ICMPv6 and DHCPv6.
• The enhanced role of the local router.
• Neigbor Discovery Protocol and the RS, RA, NS and NA ICMPv6 messages.
• Redirect ICMPv6 message.
• Stateless and statefull automatic configuration.
• Phases during automatic stateless configuration.
• Building a globally unique address .

5

Applications using IPv6

• IPv6 compatible DNS.
• IPv6 transport, AAAA records.
• Reverse address resolution. DNS clients.
• IPv6 software compatibility. Native compatibility. Network API translation.
• Upper layer protocols : Telnet, SSH, TFTP, SNMP, FTP, HTTP.

6

IPv6 routing

• Static routing vs. dynamic routing.
• RIPng protocol.
• OSPFv3 protocol.
• EIGRP protocol and IPv6.
• MBGP and IPv6.

7

Mobile and Security with IPv6

• From mobile IPv4 to mobile IPv6.
• Using bidirectional tunnels. Direct routing.
• IPSec protocol.
• Host authentication with AH. Privacy with ESP
• Establishing dynamic security association with IKE and ISAKMP.
• Internet Security Association Key Management Protocol.

8

Migrating from IPv4 to IPv6

• Going from IPv4 to IPv6.
• Using both IPv4 and IPv6 protocols.
• Transition mechanisms. Dual stack, Protocol translation, Tunneling.
• Best common practices.