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Primum, interfacem IP et ospf configurare secundum informationes segmenti retis in superiori tabulae topologiae.

Deinde configurare itineris defaltam ut ligamentum physicum attingibile sit.

Hic est exemplum R1

ip route-static 0.0.0.0 0 16.0.0.2
ip route-static 0.0.0.0 0 16.0.1.2

Tum efficiunt interfaciei MGRE configurationem cuniculum:

R1

interface Tunnel0/0/0                        #R1,R4,R5全连mgre
 ip address 192.168.1.1 24
 tunnel-protocol gre p2mp                        #设定隧道协议为mgre
 source 16.0.1.1
 nhrp network-id 1
 nhrp entry 192.168.1.4 46.0.0.1 register #按照全连要求，R1,R4,R5互为彼此中心和分支
 nhrp entry 192.168.1.5 56.0.0.1 register

interface Tunnel0/0/1                        #R1为中心,R2,R3为分支的mgre
 ip address 192.168.0.1 24
 tunnel-protocol gre p2mp
 source 16.0.0.1
 nhrp network-id 2

R2

interface Tunnel0/0/0
 ip address 192.168.0.2 24
 tunnel-protocol gre p2mp
 source 26.0.0.1
 nhrp network-id 2
 nhrp entry 192.168.0.1 16.0.0.1 register

R3

interface Tunnel0/0/0
 ip address 192.168.0.3 24
 tunnel-protocol gre p2mp
 source 36.0.0.1
 nhrp network-id 2
 nhrp entry 192.168.0.1 16.0.0.1 register
 

R4

interface Tunnel0/0/0
 ip address 192.168.1.4 24
 tunnel-protocol gre p2mp
 source 46.0.0.1
 nhrp network-id 1
 nhrp entry 192.168.1.1 16.0.1.1 register #按照全连要求，R1,R4,R5互为彼此中心和分支
 nhrp entry 192.168.1.5 56.0.0.1 register

R5

interface Tunnel0/0/0
 ip address 192.168.1.5 24 
 tunnel-protocol gre p2mp
 source 56.0.0.1
 nhrp network-id 1
 nhrp entry 192.168.1.1 16.0.1.1 register        #按照全连要求，R1,R4,R5互为彼此中心和分支
 nhrp entry 192.168.1.4 46.0.0.1 register

Post configurationem, R1 compressi et inveni R3 et R5 in mensa proxima OSPF nulla esse, sed R4 et R2.

R2 vicinus mensam non habet R1

R3 vicinus mensam non habet R1

R4 Tabula vicinus R5 habet et adiacenties habet necessitudinem, sed nulla est R1.

R5 mensa vicinus R4 habet et adiacentiam constituit, sed R1 non habet.

Primum problemata R1, R4, R5 solve. Genus interfaciei OSPF, quod cuniculum interfaciem designat in OSPF est P2P defalta.

interface tunnel0/0/0
ospf network-type broadcast

Compesce mensam vicinam OSPF R1, R4, et R5 iterum et R1, R4, et R5 vicinas sibi inveniunt.

Post problema inter R1, R2 et R3 solvendo, definitum est MGRE unicum subsidium unicast, dum OSPFV2 notitias per multicastas transmittit, et pseudo-passim necessitates in se convertendas.

R1

interface Tunnel0/0/1
 nhrp entry multicast dynamic

R1 et R2 vicini sunt, sed R3 in mensa proxima non est.

Est R1 in mensa vicina R1, sed apparatus status est init et nulla salve fasciculus recipitur ab R1.

Hoc phaenomenon idem est ac R1, R4, R5.

Ratio eligendi p2mp est quia comparati iaci, p2mp electiones DR et BDR non trigger. . Est etiam ramus, DR. , Per electionem BDR, R1-R2 et R1-R3 in duas partes electionis dividuntur ex DR et BDR in centro et ramus retis facientibus aliquibus ex LSA informationibus ab DR fabrica missis imperfecta est, inde in non posse notitias integras fundere.

R1

interface Tunnel0/0/1
ospf network-type p2mp     #修改接口类型为p2mp
ospf timer hello 10 #p2mp是人为接口类型，默认30s发送一次，为了加快收敛修改发送周期为10s

R2/R3

interface Tunnel0/0/0
ospf network-type p2mp
ospf timer hello 10

Compesce tabulas fusas R1-R5 et inveniunt omnes viscus fundere ad retiacula privata mutuo.

R1 pings R2, R3, R4, R5

R2 pings R3, R4, R5

R4 ping R2 et R5 potest, quod probat retiacula privata ad invicem pervenire posse.