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Configuring OSPF
OSPF Configuration Examples
IPC-243
Cisco IOS IP Configuration Guide
Jelly Configuration
hostname jelly
!
interface serial 2
ip address 10.0.0.3 255.0.0.0
ip ospf network point-to-multipoint
encapsulation frame-relay
clock rate 2000000
frame-relay map ip 10.0.0.2 301 broadcast
!
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
OSPF Point-to-Multipoint, Broadcast Example
The following example illustrates a point-to-multipoint network with broadcast:
interface Serial0
ip address 10.0.1.1 255.255.255.0
encapsulation frame-relay
ip ospf cost 100
ip ospf network point-to-multipoint
frame-relay map ip 10.0.1.3 202 broadcast
frame-relay map ip 10.0.1.4 203 broadcast
frame-relay map ip 10.0.1.5 204 broadcast
frame-relay local-dlci 200
!
router ospf 1
network 10.0.1.0 0.0.0.255 area 0
neighbor 10.0.1.5 cost 5
neighbor 10.0.1.4 cost 10
The following example shows the configuration of the neighbor at 10.0.1.3:
interface serial 0
ip address 10.0.1.3 255.255.255.0
ip ospf network point-to-multipoint
encapsulation frame-relay
frame-relay local-dlci 301
frame-relay map ip 10.0.1.1 300 broadcast
no shut
!
router ospf 1
network 10.0.1.0 0.0.0.255 area 0
The output shown for neighbors in the first configuration is as follows:
Router# show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
4.1.1.1 1 FULL/ - 00:01:50 10.0.1.5 Serial0
3.1.1.1 1 FULL/ - 00:01:47 10.0.1.4 Serial0
2.1.1.1 1 FULL/ - 00:01:45 10.0.1.3 Serial0
The route information in the first configuration is as follows:
Router# show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default