EIGRPv6 and OSPFv3

Today I started the last chapter (Chapter 20) of the CCIE R&S 4.0 certification guide. This Chapter is dedicated to a ton of information about IP Version 6 and the routing protocols that support it.

I learned that EIGRPv6 and OSPF v3(IPv6 version of ospf) have some differences if you compare them to each of these protocols IPv4 implementation. First lets start with EIGRP

With EIGRPv6 we have the following differences:

• To enable EIGRPv6 you enter the command on the interface level instead of Globally as you do in with dIPv4's implementation of EIGRP i.e ipv6 eigrp 10 . This will also create the routing process on the router
  
• Now we have to go into the routing process and issue the "no shutdown" command to enable routing to work.
• Also, much like OSPFv3 we need to configure the ROUTER-ID in a Ipv4 32-bit address. i.e 192.168.1.1 or the routing process will not start.
  
• EIGRPv6 will only support filtering using a distribute-list via a prefix-list to match or deny addresses, however it does not allow you to call a route-map.

For OSPFv3

• Like EIGRPv6, OSPF is also configured on the interface level i.e ipv6 ospf 10 area 0.
• You must also configure the ROUTER-ID command using an IPv4 address. OSPFv3 can't decide the ROUTER-ID dynamically like it could with OSPFv2 . If this ROUTER-ID is not configured the routing process will not start.
• OSPFv6 will use its link-local address to establish adjacencies with other OSPFv3 speaking devices
• OSPFv6 will use the globally scoped IPv6 address when using Virtual links
• There are also some new LSA (Link state advertisements) Type 8 and Type 9
• Just like OSPFv2 you will need the neighbor statement configured when configuring OSPFv6 on a NBMA network topology.

I am now going to finish reading this chapter and then watch the Advanced VOD technology videos on these topics.