学习精彩网络技术老师:华为HCIA和HCIP数通eNSP实战视频课
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介绍OSPF基本功能的配置过程,包括在各路由器上使能OSPF、指定不同区域内的网段。
组网需求
如图1所示,所有的路由器都运行OSPF,并将整个自治系统划分为三个区域,其中RouterA和RouterB作为ABR来转发区域之间的路由。
配置完成后,每台路由器都应学到AS内的到所有网段的路由。
配置思路
采用如下的思路配置OSPF基本功能:
在各路由器上使能OSPF。
指定不同区域内的网段。
数据准备
为完成此配置例,需准备如下的数据:
RouterA的Router ID 1.1.1.1,运行的OSPF进程号1,在区域0的网段192.168.0.0/24,在区域1的网段192.168.1.0/24。
RouterB的Router ID 2.2.2.2,运行的OSPF进程号1,在区域0的网段192.168.0.0/24,在区域2的网段192.168.2.0/24。
RouterC的Router ID 3.3.3.3,运行的OSPF进程号1,在区域1的网段192.168.1.0/24,172.16.1.0/24。
RouterD的Router ID 4.4.4.4,运行的OSPF进程号1,在区域2的网段192.168.2.0/24,172.17.1.0/24。
RouterE的Router ID 5.5.5.5,运行的OSPF进程号1,在区域1的网段172.16.1.0/24。
RouterF的Router ID 6.6.6.6,运行的OSPF进程号1,在区域2的网段172.17.1.0/24。
操作步骤
- 配置各接口的IP地址(略)
- 配置OSPF基本功能
# 配置RouterA。
[RouterA] router id 1.1.1.1
[RouterA] ospf
[RouterA-ospf-1] area 0
[RouterA-ospf-1-area-0.0.0.0] network 192.168.0.0 0.0.0.255
[RouterA-ospf-1-area-0.0.0.0] quit
[RouterA-ospf-1] area 1
[RouterA-ospf-1-area-0.0.0.1] network 192.168.1.0 0.0.0.255
[RouterA-ospf-1-area-0.0.0.1] quit
# 配置RouterB。
[RouterB] router id 2.2.2.2
[RouterB] ospf
[RouterB-ospf-1] area 0
[RouterB-ospf-1-area-0.0.0.0] network 192.168.0.0 0.0.0.255
[RouterB-ospf-1-area-0.0.0.0] quit
[RouterB-ospf-1] area 2
[RouterB-ospf-1-area-0.0.0.2] network 192.168.2.0 0.0.0.255
[RouterB-ospf-1-area-0.0.0.2] quit
# 配置RouterC。
[RouterC] router id 3.3.3.3
[RouterC] ospf
[RouterC-ospf-1] area 1
[RouterC-ospf-1-area-0.0.0.1] network 192.168.1.0 0.0.0.255
[RouterC-ospf-1-area-0.0.0.1] network 172.16.1.0 0.0.0.255
[RouterC-ospf-1-area-0.0.0.1] quit
# 配置RouterD。
[RouterD] router id 4.4.4.4
[RouterD] ospf
[RouterD-ospf-1] area 2
[RouterD-ospf-1-area-0.0.0.2] network 192.168.2.0 0.0.0.255
[RouterD-ospf-1-area-0.0.0.2] network 172.17.1.0 0.0.0.255
[RouterD-ospf-1-area-0.0.0.2] quit
# 配置RouterE。
[RouterE] router id 5.5.5.5
[RouterE] ospf
[RouterE-ospf-1] area 1
[RouterE-ospf-1-area-0.0.0.1] network 172.16.1.0 0.0.0.255
[RouterE-ospf-1-area-0.0.0.1] quit
# 配置RouterF。
[RouterF] router id 6.6.6.6
[RouterF] ospf
[RouterF-ospf-1] area 2
[RouterF-ospf-1-area-0.0.0.2] network 172.17.1.0 0.0.0.255
[RouterF-ospf-1-area-0.0.0.2] quit
- 验证配置结果
# 查看RouterA的OSPF邻居。
[RouterA] display ospf peer
OSPF Process 1 with Router ID 1.1.1.1
Neighbors
Area 0.0.0.0 interface 192.168.0.1(Pos1/0/0)'s neighborsRouter ID: 2.2.2.2 Address: 192.168.0.2State: Full Mode:Nbr is Master Priority: 1
DR: None BDR: None MTU: 0
Dead timer due in 36 sec
Retrans timer interval: 5
Neighbor is up for 00:15:04
Authentication Sequence: [ 0 ]
Neighbors
Area 0.0.0.1 interface 192.168.1.1(Pos2/0/0)'s neighborsRouter ID: 3.3.3.3 Address: 192.168.1.2State: Full Mode:Nbr is Master Priority: 1
DR: None BDR: None MTU: 0
Dead timer due in 39 sec
Retrans timer interval: 5
Neighbor is up for 00:07:32
Authentication Sequence: [ 0 ]
# 显示RouterA的OSPF路由信息。
[RouterA] display ospf routing
OSPF Process 1 with Router ID 1.1.1.1
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
172.16.1.0/24 2 Transit 192.168.1.2 3.3.3.3 0.0.0.1
172.17.1.0/24 3 Inter-area 192.168.0.2 2.2.2.2 0.0.0.0
192.168.0.0/24 1 Stub 192.168.0.1 1.1.1.1 0.0.0.0
192.168.1.0/24 1 Stub 192.168.1.1 1.1.1.1 0.0.0.1
192.168.2.0/24 2 Inter-area 192.168.0.2 2.2.2.2 0.0.0.0
Total Nets: 5
Intra Area: 3 Inter Area: 2 ASE: 0 NSSA: 0
# 显示RouterA的LSDB。
[RouterA] display ospf lsdb
OSPF Process 1 with Router ID 1.1.1.1
Link State Database
Area: 0.0.0.0
Type LinkState ID AdvRouter Age Len Sequence Metric
Router 2.2.2.2 2.2.2.2 317 48 80000003 1
Router 1.1.1.1 1.1.1.1 316 48 80000002 1
Sum-Net 172.16.1.0 1.1.1.1 250 28 80000001 2
Sum-Net 172.17.1.0 2.2.2.2 203 28 80000001 2
Sum-Net 192.168.2.0 2.2.2.2 237 28 80000002 1
Sum-Net 192.168.1.0 1.1.1.1 295 28 80000002 1
Area: 0.0.0.1
Type LinkState ID AdvRouter Age Len Sequence Metric
Router 5.5.5.5 5.5.5.5 214 36 80000004 1
Router 3.3.3.3 3.3.3.3 217 60 80000008 1
Router 1.1.1.1 1.1.1.1 289 48 80000002 1
Network 172.16.1.1 3.3.3.3 670 32 80000001 0
Sum-Net 172.17.1.0 1.1.1.1 202 28 80000001 3
Sum-Net 192.168.2.0 1.1.1.1 242 28 80000001 2
Sum-Net 192.168.0.0 1.1.1.1 300 28 80000001 1
# 查看RouterD的路由表,并使用Ping进行测试连通性。
[RouterD] display ospf routing
OSPF Process 1 with Router ID 4.4.4.4
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
172.16.1.0/24 4 Inter-area 192.168.2.1 2.2.2.2 0.0.0.2
172.17.1.0/24 1 Transit 172.17.1.1 4.4.4.4 0.0.0.2
192.168.0.0/24 2 Inter-area 192.168.2.1 2.2.2.2 0.0.0.2
192.168.1.0/24 3 Inter-area 192.168.2.1 2.2.2.2 0.0.0.2
192.168.2.0/24 1 Stub 192.168.2.2 4.4.4.4 0.0.0.2
Total Nets: 5
Intra Area: 2 Inter Area: 3 ASE: 0 NSSA: 0
[RouterD] ping 172.16.1.1
PING 172.16.1.1: 56 data bytes, press CTRL_C to break
Reply from 172.16.1.1: bytes=56 Sequence=1 ttl=253 time=62 ms
Reply from 172.16.1.1: bytes=56 Sequence=2 ttl=253 time=16 ms
Reply from 172.16.1.1: bytes=56 Sequence=3 ttl=253 time=62 ms
Reply from 172.16.1.1: bytes=56 Sequence=4 ttl=253 time=94 ms
Reply from 172.16.1.1: bytes=56 Sequence=5 ttl=253 time=63 ms
--- 172.16.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 16/59/94 ms
配置文件
RouterA的配置文件
#
sysname RouterA
#
router id 1.1.1.1
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
ip address 192.168.0.1 255.255.255.0
#
interface Pos2/0/0
link-protocol ppp
undo shutdown
ip address 192.168.1.1 255.255.255.0
#
ospf 1
area 0.0.0.0
network 192.168.0.0 0.0.0.255
area 0.0.0.1
network 192.168.1.0 0.0.0.255
#
return
RouterB的配置文件
#
sysname RouterB
#
router id 2.2.2.2
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
ip address 192.168.0.2 255.255.255.0
#
interface Pos2/0/0
link-protocol ppp
undo shutdown
ip address 192.168.2.1 255.255.255.0
#
ospf 1
area 0.0.0.0
network 192.168.0.0 0.0.0.255
area 0.0.0.2
network 192.168.2.0 0.0.0.255
#
return
RouterC的配置文件
#
sysname RouterC
#
router id 3.3.3.3
#
interface GigabitEthernet2/0/0
undo shutdown
ip address 172.16.1.1 255.255.255.0
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
ip address 192.168.1.2 255.255.255.0
#
ospf 1
area 0.0.0.1
network 192.168.1.0 0.0.0.255
network 172.16.1.0 0.0.0.255
#
return
RouterD的配置文件
#
sysname RouterD
#
router id 4.4.4.4
#
interface GigabitEthernet2/0/0
undo shutdown
ip address 172.17.1.1 255.255.255.0
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
ip address 192.168.2.2 255.255.255.0
#
ospf 1
area 0.0.0.2
network 192.168.2.0 0.0.0.255
network 172.17.1.0 0.0.0.255
#
return
RouterE的配置文件
#
sysname RouterE
#
router id 5.5.5.5
#
interface GigabitEthernet2/0/0
undo shutdown
ip address 172.16.1.2 255.255.255.0
#
ospf 1
area 0.0.0.1
network 172.16.1.0 0.0.0.255
#
return
RouterF的配置文件
#
sysname RouterF
#
router id 6.6.6.6
#
interface GigabitEthernet2/0/0
undo shutdown
ip address 172.17.1.2 255.255.255.0
#
ospf 1
area 0.0.0.2
network 172.17.1.0 0.0.0.255
#
return