REFERENCE
MEMO
—EIGRP—[CE1]———(WAN, not EIGRP)——–[CE2]—EIGRP—
- 分割されたEIGRPドメインを一つに扱える
⇒ CE1 は CE2 とEIGRPネイバーになれる - CEが多い時はBGPのようにルートリフレクタを使える（CEがRR機能を持てる）
- RRはnext-hopやメトリックを変更することなくUpdateを反射できる
※ルータ間は10.x.5.0/24
- 双方で同じ設定を実施
R1(config)#
R1(config)#do sh run | sec router eigrp
R1(config)#
R1(config)#router ei CCIE
R1(config-router)#add ipv4 uni auto 1
R1(config-router-af)#
R1(config-router-af)#nei 10.2.5.2 gi0/1 remote 2 lisp-encap 1
R1(config-router-af)#
*Jun 26 12:59:32.842: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.2.5.2 (GigabitEthernet0/1) is up: new adjacency
*Jun 26 12:59:33.789: %LINEPROTO-5-UPDOWN: Line protocol on Interface LISP1, changed state to up
R1(config-router-af)#
R1(config-router-af)#do sh ip ei nei
EIGRP-IPv4 VR(CCIE) Address-Family Neighbors for AS(1)
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 10.2.5.2 Gi0/1 14 00:00:24 11 100 0 6
R1(config-router-af)#
R1(config-router-af)#do sh run | sec router eigrp
router eigrp CCIE
!
address-family ipv4 unicast autonomous-system 1
!
topology base
exit-af-topology
neighbor 10.2.5.2 GigabitEthernet0/1 remote 2 lisp-encap 1
network 10.1.5.0 0.0.0.255 ★自動で追加
exit-address-family
R1(config-router-af)#
R1(config-router-af)#
R1(config-router-af)#do sh ip ro ei | b Gate
Gateway of last resort is 10.1.5.5 to network 0.0.0.0
D 192.168.2.0/24 [90/93998811] via 10.2.5.2, 00:06:04, LISP1 ★対向からの経路
R1(config-router-af)#
- R1をRoute Reflector にする。R2-R4の設定は上記と同じまま
R1(config)#router ei CCIE R1(config-router)# add ipv4 uni auto 1 R1(config-router-af)# R1(config-router-af)#remote-neighbors source gi0/1 unicast-listen lisp-encap 1 R1(config-router-af)# *Jun 26 13:33:04.124: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.4.5.4 (GigabitEthernet0/1) is up: new adjacency *Jun 26 13:33:04.557: %LINEPROTO-5-UPDOWN: Line protocol on Interface LISP1, changed state to up R1(config-router-af)# *Jun 26 13:33:05.920: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.3.5.3 (GigabitEthernet0/1) is up: new adjacency R1(config-router-af)# *Jun 26 13:33:08.158: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.2.5.2 (GigabitEthernet0/1) is up: new adjacency R1(config-router-af)#af-int gi0/1 R1(config-router-af-interface)#no split R1(config-router-af-interface)# *Jun 26 13:33:50.306: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.2.5.2 (GigabitEthernet0/1) is resync: split horizon changed *Jun 26 13:33:50.306: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.3.5.3 (GigabitEthernet0/1) is resync: split horizon changed *Jun 26 13:33:50.306: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.4.5.4 (GigabitEthernet0/1) is resync: split horizon changed R1(config-router-af-interface)#no next R1(config-router-af-interface)# *Jun 26 13:33:54.127: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.2.5.2 (GigabitEthernet0/1) is down: next_hop_self value changed *Jun 26 13:33:54.128: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.3.5.3 (GigabitEthernet0/1) is down: next_hop_self value changed *Jun 26 13:33:54.129: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.4.5.4 (GigabitEthernet0/1) is down: next_hop_self value changed *Jun 26 13:33:54.979: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.2.5.2 (GigabitEthernet0/1) is up: new adjacency *Jun 26 13:33:55.446: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.4.5.4 (GigabitEthernet0/1) is up: new adjacency *Jun 26 13:33:57.472: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 10.3.5.3 (GigabitEthernet0/1) is up: new adjacency
R2#sh ip ro ei | b Gate Gateway of last resort is 10.2.5.5 to network 0.0.0.0 D 192.168.3.0/24 [90/93998811] via 10.3.5.3, 00:09:49, LISP1 D 192.168.4.0/24 [90/93998811] via 10.4.5.4, 00:09:51, LISP1 R2# R3#sh ip ro ei | b Gate Gateway of last resort is 10.3.5.5 to network 0.0.0.0 D 192.168.2.0/24 [90/93998811] via 10.2.5.2, 00:09:56, LISP1 D 192.168.4.0/24 [90/93998811] via 10.4.5.4, 00:09:56, LISP1 R3# R4#sh ip ro ei | b Gate Gateway of last resort is 10.4.5.5 to network 0.0.0.0 D 192.168.2.0/24 [90/93998811] via 10.2.5.2, 00:10:02, LISP1 D 192.168.3.0/24 [90/93998811] via 10.3.5.3, 00:10:00, LISP1 R4#
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