Using OSPFv3 has the advantage of centralizing both IPv4 and IPv6 in one area of the router's configuration. It has some caveats. All routers must be running Cisco IOS 15.1(3)S or 15.2(1)T or later (depending on platform)Routers using IPv4 in OSPFv3 will not peer with OSPFv2 (traditional IPv4) routers (because the older routers do not … Continue reading 8.4 OSPFv3 Caveats →

Example of summarization of external routes at an ASBR for OSPFv3: There are command arguments to be aware of when summarizing in this manner. not-advertise - suppresses routes that match the specified prefix and mask pairnssa-only - limits the scope of the summarized prefix to the area Also within address-family configuration for OSPFv3, you can … Continue reading 8.3 Configuring Advanced OSPFv3 →

There are two methods for configuring IPv6 on Cisco routers: TraditionalOSPFv3 Method 1: Traditional IPv6 OSPF configuration: Enable IPv6 globally: ipv6 unicast-routingCreate a separate routing process for IPv6: ipv6 router ospf <ID>Under interfaces: ipv6 ospf <ID> area <Area#>For NBMA links, per interface: ipv6 ospf neighbor <Link-Local Address> There are two new LSA types in IPv6 … Continue reading 8.2 Implementing OSPFv3 →