OSPF的实验图及其配置

==========R1==========
sys
un in en
sys R1
int g0/0/0
ip add 12.0.0.1 8
int g0/0/1ip add 13.0.0.1 8
ospf 1
area 0
network 12.0.0.0 0.255.255.255
network 13.0.0.0 0.255.255.255
==========R2==========
sys
un in en
sys R2
int g0/0/0
ip add 12.0.0.2 8
int g0/0/1
ip add 23.0.0.2 8
int g0/0/2
ip add 192.168.1.254 24
ospf 1
area 0
network 12.0.0.0 0.255.255.255
network 23.0.0.0 0.255.255.255
network 192.168.1.0 0.0.0.255==========R3==========
sys
un in en
sys R3
int g0/0/0
ip add 13.0.0.3 8
int g0/0/1
ip add 23.0.0.3 8
int g0/0/2
ip add 192.168.2.254 24
ospf 1
area 0
network 13.0.0.0 0.255.255.255
network 23.0.0.0 0.255.255.255
network 192.168.2.0 0.0.0.255