DMVPN with EIGRP

設定

PE（iosv-0）

router eigrp DMVPN
 !
 address-family ipv4 unicast vrf RED autonomous-system 100
  !
  topology base
   redistribute bgp 100 metric 1000000 1 255 1 1500
  exit-af-topology
  network 192.168.30.0
 exit-address-family
!
router ospf 1
 mpls ldp autoconfig
!
router bgp 100
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 2.2.2.2 remote-as 100
 neighbor 2.2.2.2 update-source Loopback0
 !
 address-family ipv4
 exit-address-family
 !
 address-family vpnv4
  neighbor 2.2.2.2 activate
  neighbor 2.2.2.2 send-community both
 exit-address-family
 !
 address-family ipv4 vrf RED
  redistribute eigrp 100
 exit-address-family

再配送先がEIGRPの場合メトリックが無限大になるので注意。
それ以外に特別な設定は特にない。
いつも通りvpnv4でvrf付の経路を交換して、CE側に流してあげてる。

CE: sh ip ro

iosv-5#sh ip ro | b Gate
Gateway of last resort is not set

      3.0.0.0/32 is subnetted, 1 subnets
D        3.3.3.3 [90/16000] via 192.168.25.2, 00:10:46, GigabitEthernet0/0
      5.0.0.0/32 is subnetted, 1 subnets
C        5.5.5.5 is directly connected, Loopback0
      192.168.25.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.25.0/24 is directly connected, GigabitEthernet0/0
L        192.168.25.5/32 is directly connected, GigabitEthernet0/0
D     192.168.30.0/24 
           [90/15360] via 192.168.25.2, 00:13:22, GigabitEthernet0/0

PE-CEをOSPFで接続すると、inter-areaの扱いでコードがO IAになっていたように、EIGRPでもコードがDであることを確認できる（外部ASの場合はEXになる）。

参考

Chapter: MPLS VPN Support for EIGRP Between PE and CE