Single-Area OSPFv3

このページで学ぶこと

• IPv6 Unicast Routing Prerequisite
• OSPFv3 Process Configuration
• OSPFv3 Address Family IPv6
• OSPFv3 Interface IPv6 Enablement
• OSPFv3 Interface Activation
• OSPFv3 Link Local Neighbor Role
• OSPFv3 Process ID Local Significance
• Show OSPFv3 Process Verification
• Show OSPFv3 Neighbor Verification
• Show IPv6 Route OSPF Verification

Prerequisite

ipv6 unicast-routing
!
interface GigabitEthernet0/0
 ipv6 address 2001:db8:10::1/64
 ! または ipv6 enable

OSPFv3 Commandだけでなく、RouterのIPv6 RoutingとInterfaceのIPv6有効化が前提です。InterfaceでIPv6が有効になるとLink-localを利用できます。

Process / Address Family

router ospfv3 10
 router-id 1.1.1.1
 address-family ipv6 unicast
 exit-address-family

Interface有効化

interface GigabitEthernet0/0
 ospfv3 10 ipv6 area 0

Neighbor通信ではIPv6 Link-localが重要です。Global PrefixはRouting対象、Link-localはLocal Link上のNeighbor通信に使われます。

Verification

• `show ospfv3`
• `show ospfv3 interface`
• `show ospfv3 neighbor`
• `show ipv6 route ospf`

まとめ

Single-Area OSPFv3をIPv6で構成し、IPv6自体のPrerequisite・Link-local・Address Family・Verificationを分離して判断できるようにする。