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- 启用OSPF动态路由协议
- 定义参与ospf的子网.该子网属于哪一个OSPF路由信息交换区域。
- OSPF区域间的路由信息总结
- 指明网络类型 在需要进行OSPF路由信息的端口中，设置：
- 对于非广播型的网络连接，需指明路由器的相邻路由器
router ospf 进程号
进程号可以随意设置，只标识ospf为本路由器内的一个进程
network ip 子网号
通配符 area 区域号
路由器将限制只能在相同区域内交换子网信息，不同区域间不交换路由信息。另外，区域0为主干OSPF区域。不同区域交换路由信息必须经过区域0。一般地，某一区域要接入OSPF0路由区域，该区域必须至少有一台路由器为区域边缘路由器，即它既参与本区域路由又参与区域0路由。
如果区域中的子网是连续的，则区域边缘路由器向外传播给路由信息时，采用路由总结功能后，路由器就会将所有这些连续的子网总结为一条路由传播给其它区域，则在其它区域内的路由器看到这个区域的路由就只有一条。这样可以节省路由时所需网络带宽。
设置对某一特定范围的子网进行总结：area 区域号 range 子网范围掩码
ip ospf network
broadcast或non-broadcast或point-to -mutlipoint
一般地，对于 DDN，帧中继和X.25属于非广播型的网络，即non-broadcast
通过以上配置，路由器之间就可以完成交换路由信息了，其它设置，为了防止路由信息被窃取，可以对OSPF进行安全设置，只有合法的同一区域的路由器之间才能交换路由信息。
设置步骤
- 设置某区域使用安全设置MD5方式
- 设置某端口验证其相邻路由器相邻端口时的MD5口令，在端口设置模式下
area 区域标号 autherfication
message-digest
可以采用明文方式 ，但建议采用MD5方式，较安全。
实例1 无安全，无路由总结的OSPF设置
2511－1的设置
Current configuration：
！
version 11.3
no service password-encryption
!
hostname 2511-1
!
enable password cisco
!
interface Ethernet0
ip address 192.4.1.1 255.255.255.0
!
interface Serial0
ip address 192.3.1.1 255.255.255.0
encapsulation frame-relay IETF
no ip mroute-cache
bandwidth 2000
frame-relay map ip 192.3.1.2 100 broadcast
frame-relay lmi-type cisco
!
interface Serial1
ip address 192.1.1.1 255.255.255.0
encapsulation ppp
bandwidth 64
!
router ospf 1
passive-interface Ethernet0
network 192.1.1.0 0.0.0.255 area 0
network 192.3.1.0 0.0.0.255 area 0
network 192.4.1.0 0.0.0.255 area 0
neighbor 192.1.1.2 priority 1
neighbor 192.3.1.2 priority 1
!
ip classless
!
line con 0
line 1 8
line aux 0
line vty 0 4
!
end
2505的设置
Current configuration:
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname 2505
!
enable secret 5 $1$GbYT$OR05giiLZxI4hEAO0F8kV1
!
hub ether 0 1
link-test
auto-polarity
!
hub ether 0 2
link-test
auto-polarity
!
hub ether 0 3
link-test
auto-polarity
!
hub ether 0 4
link-test
auto-polarity
!
hub ether 0 5
link-test
auto-polarity
!
hub ether 0 6
link-test
auto-polarity
!
hub ether 0 7
link-test
auto-polarity
!
hub ether 0 8
link-test
auto-polarity
!
interface Ethernet0
ip address 192.1.4.1 255.255.255.0
!
interface Serial0
ip address 192.1.2.1 255.255.255.0
ip ospf network non-broadcast
bandwidth 2000
clockrate 2000000
!
interface Serial1
ip address 192.1.1.2 255.255.255.0
enpsuration ppp
ip ospf network non-broadcast
bandwidth 64
clockrate 64000
!
router ospf 1
passive-interface Ethernet0
network 192.1.1.0 0.0.0.255 area 0
network 192.1.2.0 0.0.0.255 area 2
network 192.1.4.0 0.0.0.255 area 2
neighbor 192.1.1.1 priority 1
neighbor 192.1.2.2 priority 1
!
no ip classless
ip ospf name-lookup
!
line con 0
line aux 0
line vty 0 4
login
!
end
internal -2的设置
Current configuration :
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname internal-2
!
enable secret 5 $1$KX00$rTI/2TvDokWxT4xC6wvmi/
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 192.1.2.2 255.255.255.0
ip ospf network non-broadcast
!
interface Serial1
no ip address
shutdown
!
router ospf 1
network 192.1.2.0 0.0.0.255 area 2
neighbor 192.1.2.1 priority 1
!
no ip classless
!
line con 0
line 1 16
line aux 0
line vty 0 4
!
end
2514的设置
Current configuration :
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname 2514
!
enable secret 5 $1$uoHU$Vks/lY CRi33z4TXs4qekI0
!
frame-relay switching
!
interface Ethernet0
ip address 192.5.1.1 255.255.255.0
!
interface Ethernet1
no ip address
shutdown
!
interface Serial0
ip address 192.3.1.2 255.255.255.0
encapsulation frame-relay IETF
bandwidth 2000
clockrate 2000000
frame-relay map ip 192.3.1.1 100 broadcast
frame-relay intf-type dce
!
interface Serial1
ip address 192.2.1.1 255.255.255.0
no ip mroute-cache
encapsulation X25 dce
bandwidth 64
x25 address 1234
x25 htc 16
x25 nvc 4
x25 map ip 192.2.1.2 5678 broadcast
clockrate 64000
!
router ospf 1
passive-interface Ethernet0
network 192.3.1.0 0.0.0.255 area 0
network 192.2.1.0 0.0.0.255 area 0
network 192.5.1.0 0.0.0.255 area 0
neighbor 192.2.1.2 priority 1
neighbor 192.3.1.1 priority 1
!
no ip classless
!
line con 0
line aux 0
line vty 0 4
login
!
end
2511-2的设置
Building configuration ...
Current configuration:
!
version 11.3
no service password-encryption
!
hostname 2511-2
!
enable secret 5 $1$7o5F$MSyFWzVf6JBgnjLJghHSB.
!
interface Ethernet0
ip address 192.2.4.1 255.255.255.0
!
interface Serial0
ip address 192.2.1.2 255.255.255.0
encapsulation x25
no ip mroute-cache
x25 address 5678
x25 htc 16
x25 nvc 4
x25 map ip 192.2.1.1 1234 broadcast
!
interface Serial1
ip address 192.2.2.1 255.255.255.0
ip ospf network non-broadcast
no ip mroute-cache
bandwidth 2000
clockrate 2000000
!
router ospf 1
passive-interface Ethernet0
network 192.2.2.0 0.0.0.255 area 1
network 192.2.4.0 0.0.0.255 area 1
network 192.2.1.0 0.0.0.255 area 0
neighbor 192.2.1.1 piority 1
neighbor 192.2.2.2 piority 1
!
ip classless
!
line con 0
line 1 8
line aux 0
line vty 0 4
!
end
internal -1的设置
Building configuration...
Current configuration:
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname internal-1
!
enable secret 5 $1$cF2M$z2T8Ohij5q/yn2RsiVaGE/
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 192.2.2.2 255.255.255.0
ip ospf network non-broadcast
!
interface Serial1
no ip address
shutdown
!
router ospf 10
network 192.2.2.0 0.0.0.255 area 1
neighbor 192.2.2.1 priority 1
!
no ip classless
!
line con 0
line 1 16
line aux 0
line vty 0 4
login
!
end
实例2 有安全，路由总结的OSPF设置
internal-2的设置
Current configuration :
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname internal-2
!
enable secret 5 $1$KX00$rTI/2TvDokWxT4xC6wvmi/
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 192.1.2.2 255.255.255.0
ip ospf message-digest-key 1 md5 cisco
ip ospf network non-broadcast
!
interface Serial1
no ip address
shutdown
!
router ospf 1
network 192.1.2.0 0.0.0.255 area 2
neighbor 192.1.2.1 priority 1
area 2 authentication message-digest
!
no ip classless
!
line con 0
line 1 16
line aux 0
line vty 0 4
login
!
end
2505的设置
Current configuration:
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname 2505
!
enable secret 5 $1$b43o$CpEYSTC2EPwnR1QGvIm//
!
username 2511-1 password 7 104D000A0618
!
hub ether 0 1
link-test
auto-polarity
!
hub ether 0 2
link-test
auto-polarity
!
hub ether 0 3
link-test
auto-polarity
!
hub ether 0 4
link-test
auto-polarity
!
hub ether 0 5
link-test
auto-polarity
!
hub ether 0 6
link-test
auto-polarity
!
hub ether 0 7
link-test
auto-polarity
!
hub ether 0 8
link-test
auto-polarity
!
interface Ethernet0
ip address 192.1.4.1 255.255.255.0
!
interface Serial0
ip address 192.1.2.1 255.255.255.0
ip ospf message-digest –key 1 md5 cisco
ip ospf network non-broadcast
bandwidth 2000
clockrate 2000000
!
interface Serial1
ip address 192.7.1.2 255.255.255.0
enpsulation ppp
ip ospf message-digest -key 1 md5 kim
ip ospf network non-broadcast
bandwidth 64
clockrate 64000
ppp authentication chap
!
router ospf 1
passive-interface Ethernet0
network 192.1.2.0 0.0.0.255 area 2
network 192.1.4.0 0.0.0.255 area 2
network 192.7.1.0 0.0.0.255 area 0
neighbor 192.7.1.1 priority 1
neighbor 192.1.2.2 priority 1
area 0 authentication message-digest
area 2 authentication message-digest
area 2 range 192.1.0.0 255.255.0.0
!
no ip classless
ip ospf name-lookup
!
line con 0
line aux 0
line vty 0 4
login
!
end
2511－1的设置
Current configuration：
！
version 11.3
no service password-encryption
!
hostname 2511-1
!
enable password cisco
!
username 2505 passweord 0 cisco
no ip domain-lookup
!
interface Ethernet0
ip address 192.4.1.1 255.255.255.0
!
interface Serial0
ip address 192.3.1.1 255.255.255.0
encapsulation frame-relay IETF
ip ospf message-digest-key 1 md5 kim
no ip mroute-cache
bandwidth 2000
frame-relay map ip 192.3.1.2 100 broadcast
frame-relay lmi-type cisco
!
interface Serial1
ip address 192.7.1.1 255.255.255.0
encapsulation ppp
ip ospf message-digest-key 1 md5 kim
ip ospf network non-broadcast
bandwidth 64
ppp authentication chap
!
router ospf 1
passive-interface Ethernet0
network 192.3.1.0 0.0.0.255 area 0
network 192.4.1.0 0.0.0.255 area 0
network 192.7.1.0 0.0.0.255 area 0
neighbor 192.7.1.2 priority 1
neighbor 192.3.1.2 priority 1
area 0 authentication message-digest
!
no ip classless
!
line con 0
line 1 8
line aux 0
line vty 0 4
login
!
end
2514的设置
Current configuration :
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname 2514
!
enable secret 5 $1$uoHU$Vks/lY CRi33z4TXs4qekI0
!
frame-relay switching
!
interface Ethernet0
ip address 192.5.1.1 255.255.255.0
!
interface Ethernet1
no ip address
shutdown
!
interface Serial0
ip address 192.3.1.2 255.255.255.0
encapsulation frame-relay IETF
ip ospf message-digest-key 1 md5 kim
bandwidth 2000
clockrate 2000000
frame-relay map ip 192.3.1.1 100 broadcast
frame-relay intf-type dce
!
interface Serial1
ip address 192.8.1.1 255.255.255.0
no ip mroute-cache
encapsulation X25 dce
ip ospf message-digest-key 2 md5 cisco
bandwidth 64
x25 address 1234
x25 htc 16
x25 nvc 4
x25 map ip 192.8.1.2 5678 broadcast
clockrate 64000
!
router ospf 1
network 192.3.1.0 0.0.0.255 area 0
network 192.5.1.0 0.0.0.255 area 0
network 192.8.1.0 0.0.0.255 area 0
neighbor 192.8.1.2 priority 1
neighbor 192.3.1.1 priority 1
area 0 authentication message-digest
!
no ip classless
!
line con 0
line aux 0
line vty 0 4
login
!
end
2511-2的设置
Current configuration :
version 11.3
no service password-encryption
!
hostname 2511-2
!
enable secret 5 $1$7o5F$MSyFWzVf6JBgnjLJghHSB.
!
!
interface Ethernet0
ip address 192.2.4.1 255.255.255.0
!
interface Serial0
ip address 192.8.1.2 255.255.255.0
encapsulation x25
ip ospf message-digest-key 2 md5 cisco
no ip mroute-cache
x25 address 5678
x25 htc 16
x25 nvc 4
x25 map ip 192.8.1.1 1234 broadcast
!
interface Serial1
ip address 192.2.2.1 255.255.255.0
ip ospf authentication-key kim
ip ospf network non-broadcast
no ip mroute-cache
bandwidth 2000
clockrate 2000000
!
router ospf 1
passive-interface Ethernet0
network 192.2.2.0 0.0.0.255 area 1
network 192.2.4.0 0.0.0.255 area 1
network 192.8.1.0 0.0.0.255 area 0
neighbor 192.8.1.1 priority 1
neighbor 192.2.2.2 priority 1
area 0 authentication message-digest
area 1 authentication (疑应加上message-digest，但原文如此)
area 1 range 192.2.0.0 255.255.0.0
!
ip classless
!
line con 0
line 1 8
line aux 0
line vty 0 4
login
!
end
internal -1的设置
Building configuration...
Current configuration:
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname internal-1
!
enable secret 5 $1$cF2M$z2T8Ohij5q/yn2RsiVaGE/
!
interface Ethernet0
no ip address
shutdown
!
interface Serial0
ip address 192.2.2.2 255.255.255.0
ip ospf authentication-key kim
ip ospf network non-broadcast
!
interface Serial1
no ip address
shutdown
!
router ospf 1
network 92.2.2.0 0.0.0.255 area 1
neighbor 192.2.2.1 priority 1
area 1authentication
!
no ip classless
!
line con 0
line 1 16
line aux 0
line vty 0 4
login
!
end
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