Objectives
The simulator ticks each one as soon as the network meets it.
Check that IPv4 already works: ping 192.168.3.10 from PC1.
Enable IPv6 routing on R1 and R3 (ipv6 unicast-routing) and IPv6 globally on R2 (ipv6).
Add the IPv6 addresses: 2001:db8:1::1, 2001:db8:12::1/::2, 2001:db8:23::2/::3 and 2001:db8:3::1 (all /64).
Run OSPFv3 area 0 on every router link and LAN; give R2 router-id 2.2.2.2.
Ping PC2 over IPv6 (2001:db8:3::10) from PC1.
Before you start
OSPFv2 and OSPFv3 are separate processes with separate neighbor tables (show ip ospf neighbor vs show ipv6 ospf neighbor; display ospf peer vs display ospfv3 peer). Hosts here are already dual-stack.
Concept
Dual stack: IPv4 and IPv6 side by side
Dual stack runs IPv4 and IPv6 on the same interfaces at the same time. The two are independent: separate addresses, routing tables and routing protocols. The EtherType tells a receiver which one a frame carries.
Concept
OSPFv3 for IPv6
OSPFv3 is OSPF for IPv6. It works like OSPFv2 — hellos, areas, SPF — but is enabled per interface, talks over link-local addresses and still needs a 32-bit router ID.
