Typical Configuration Of Multi-area OSPF on AR28、AR46 Series Routers

Typical Configuration Of Multi-area OSPF on AR28、AR46 Series Routers

[Requirements]

In an OSPF AS, Router B serves as the ABR; area 0 is the backbone area; area 1 is the ordinary area.

[Networking diagram]

[Configuration script]

Configuration script on Router A

# sysname RouterA # router id 1.1.1.1      /Configure the router ID to be the same as loopback 0/ # radius scheme system # domain system # interface Ethernet0/0 ip address 10.1.1.1 255.255.255.0 # interface Serial0/0 link-protocol ppp ip address 20.1.1.1 255.255.255.252 # interface NULL0 # interface LoopBack0 ip address 1.1.1.1 255.255.255.255 # ospf 1                           /Enable the OSPF/ area 0.0.0.0                     /Create area 0/ network 1.1.1.1 0.0.0.0          /Enable the OSPF on loop 0/ network 10.1.1.0 0.0.0.255       /Enable the OSPF on E0/0/ network 20.1.1.0 0.0.0.3         /Enable the OSPF on S0/0/ # user-interface con 0 user-interface vty 0 4 # return

Configuration script on Router B

# sysname RouterB # router id 1.1.1.2             /Configure the router ID to be the same as loopback 0/ # radius scheme system # domain system # interface Seria0/0 link-protocol ppp ip address 20.1.1.2 255.255.255.252 # interface Serial0/1 link-protocol ppp ip address 30.1.1.1 255.255.255.252 # interface NULL0 # interface LoopBack0 ip address 1.1.1.2 255.255.255.255 # ospf 1                           /Enable the OSPF/ area 0.0.0.1                     /Create area 1/ network 30.1.1.0 0.0.0.3         /Enable the OSPF on S0/1/ # area 0.0.0.0                     /Create area 0/ network 1.1.1.2 0.0.0.0          /Enable the OSPF on loop 0/ network 20.1.1.0 0.0.0.3         /Enable the OSPF on S0/0/ # user-interface con 0 user-interface vty 0 4 # return

Configuration script on Router C

# sysname RouterC # router id 1.1.1.3      /Configure the router ID to be the same as loopback 0/ # radius scheme system # domain system # interface Ethernet0/0 ip address 40.1.1.1 255.255.255.0 # interface Serial0/0 link-protocol ppp ip address 30.1.1.2 255.255.255.252 # interface NULL0 # interface LoopBack0 ip address 1.1.1.3 255.255.255.255 # ospf 1                           /Enable the OSPF/ area 0.0.0.1                     /Create area 1/ network 1.1.1.3 0.0.0.0          /Enable the OSPF on loop 0/ network 30.1.1.0 0.0.0.3         /Enable the OSPF on S0/0/ network 40.1.1.0 0.0.0.255       /Enable the OSPF on E0/0/ # user-interface con 0 user-interface vty 0 4 # return

 

[Verification]

Routers can learn the routes of the whole network through OSPF, and their network segments can be pinged mutually.

Routing table of Router A:

[RouterA]disp ip routing-table

 Routing Table: public net

Destination/Mask   Protocol Pre  Cost        Nexthop         Interface     

1.1.1.1/32         DIRECT   0    0           127.0.0.1       InLoopBack0    

1.1.1.2/32         OSPF     10   1563        20.1.1.2        Serial0/0       

10.1.1.0/24        DIRECT   0    0           10.1.1.1        Ethernet0/0    

10.1.1.1/32        DIRECT   0    0           127.0.0.1       InLoopBack0     

20.1.1.0/30        DIRECT   0    0           20.1.1.1        Serial0/0       

20.1.1.1/32        DIRECT   0    0           127.0.0.1       InLoopBack0     

20.1.1.2/32        DIRECT   0    0           20.1.1.2        Serial0/0       

30.1.1.0/24        OSPF     10   1563        20.1.1.2        Serial0/0       

127.0.0.0/8        DIRECT   0    0           127.0.0.1       InLoopBack0     

127.0.0.1/32       DIRECT   0    0           127.0.0.1       InLoopB

 [Tip]

This example only includes the configuration of a backbone area and an ordinary area, which is similar to the configuration of more areas.