As shown in the figure, ISR routers can support dynamic IPv6 routing protocols including:
- RIPng (RIP next generation)
- OSPFv3
- EIGRP for IPv6
Support for dynamic IPv6 routing protocols is dependent on hardware and IOS version. Most of the modifications in the routing protocols are to support the longer IPv6 addresses and different header structures.
To enable IPv6 routers to forward traffic, you must configure the ipv6 unicast-routing global configuration command.