network 3.3.3.0/24 area 0.0.0.0

 network 192.168.0.0/16 area 0.0.0.0

!

line vty

!

End

-------------------------------------------------------

R2：

配置文件如下：

ospfd# show running-config

Current configuration:

!

hostname ospfd

password zebra

log stdout

!

!

!

interface lo

!

interface eth0

!

interface eth1

!

interface eth2

!

interface dummy0

!

router ospf

 network 2.2.2.0/24 area 0.0.0.0

 network 192.168.0.0/16 area 0.0.0.0

!

line vty

!

End

---------------------------------------------------

R3：

配置如下：

ospfd# show running-config

Current configuration:

!

hostname ospfd

password zebra

log file /root/ospfd.log

log stdout

!

!

!

interface lo

!

interface eth0

!

interface eth1

!

interface eth2

!

interface dummy0

!

router ospf

 network 4.4.4.0/24 area 0.0.0.0

 network 192.168.0.0/16 area 0.0.0.0

!

line vty

!

End

----------------------------------------

各个运行状态如下：

R1：

ospfd# show ip ospf route

============ OSPF network routing table ============

N    2.2.2.0/24            [20] area: 0.0.0.0

                           via 192.168.101.1, eth1

N    3.3.3.0/24            [10] area: 0.0.0.0

                           directly attached to eth3

N    4.4.4.0/24            [20] area: 0.0.0.0

                           via 192.168.102.2, eth2

N    192.168.100.0/30      [20] area: 0.0.0.0

                           via 192.168.101.1, eth1

                           via 192.168.102.2, eth2

N    192.168.101.0/30      [10] area: 0.0.0.0

                           directly attached to eth1

N    192.168.102.0/30      [10] area: 0.0.0.0

                           directly attached to eth2

============ OSPF router routing table =============

============ OSPF external routing table ===========

路由表：

bash-2.05# route -n

Kernel IP routing table

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface

192.168.100.0   192.168.101.1   255.255.255.252 UG    20     0        0 eth1

192.168.101.0   0.0.0.0         255.255.255.252 U     0      0        0 eth1

192.168.102.0   0.0.0.0         255.255.255.252 U     0      0        0 eth2

10.0.1.0        0.0.0.0         255.255.255.0   U     0      0        0 eth0

2.2.2.0         192.168.101.1   255.255.255.0   UG    20     0        0 eth1

3.3.3.0         0.0.0.0         255.255.255.0   U     0      0        0 eth3

4.4.4.0         192.168.102.2   255.255.255.0   UG    20     0        0 eth2

10.100.100.0    0.0.0.0         255.255.254.0   U     0      0        0 tap0

0.0.0.0         10.0.1.163      0.0.0.0         UG    0      0        0 eth0

------------------------------

R2：

ospfd# sh ip ospf route

============ OSPF network routing table ============

N    2.2.2.0/24            [10] area: 0.0.0.0

                           directly attached to dummy0

N    3.3.3.0/24            [20] area: 0.0.0.0

                           via 192.168.101.2, eth2

N    4.4.4.0/24            [20] area: 0.0.0.0

                           via 192.168.100.2, eth1

N    192.168.100.0/30      [10] area: 0.0.0.0

                           directly attached to eth1

N    192.168.101.0/30      [10] area: 0.0.0.0

                           directly attached to eth2

N    192.168.102.0/30      [20] area: 0.0.0.0

                           via 192.168.100.2, eth1

                           via 192.168.101.2, eth2

============ OSPF router routing table =============

============ OSPF external routing table ===========

路由表：

无

-----------------------------------

R3：

ospfd# sh ip ospf rou

============ OSPF network routing table ============

N    2.2.2.0/24            [20] area: 0.0.0.0