目录

拓扑图

配置IP

配置静态路由

配置ospf

nat

配置路由策略

流分类

流行为

流策略

应用接口

测试流量路径

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拓扑图

配置IP

[R1]int g0/0/0

[R1-GigabitEthernet0/0/0]ip add 192.168.1.254 24

[R1-GigabitEthernet0/0/0]int g0/0/1

[R1-GigabitEthernet0/0/1]ip add 192.168.2.254 24

[R1-GigabitEthernet0/0/1]int g0/0/2

[R1-GigabitEthernet0/0/2]ip add 12.1.1.1 30

[R1-GigabitEthernet0/0/2]int g4/0/0

[R1-GigabitEthernet4/0/0]ip add 13.1.1.1 30

[R2]INT G0/0/0

[R2-GigabitEthernet0/0/0]ip add 12.1.1.2 30

[R2-GigabitEthernet0/0/2]int g0/0/1

[R2-GigabitEthernet0/0/1]ip add 100.1.1.1 30

[R2]interface LoopBack 0

[R2-LoopBack0]ip add 1.1.1.1 32

[R3]int g0/0/0

[R3-GigabitEthernet0/0/0]ip add 13.1.1.2 30

[R3-GigabitEthernet0/0/0]int g0/0/1

[R3-GigabitEthernet0/0/1]ip add 100.1.1.2 30

[R3-GigabitEthernet0/0/1]q

[R3]int LoopBack 0

[R3-LoopBack0]ip add 2.2.2.2 32

配置静态路由

[R1]ip route-static 0.0.0.0 0 12.1.1.2

[R1]ip route-static 0.0.0.0 0 13.1.1.2

配置ospf

[R2]ospf 1

[R2-ospf-1]area 0

[R2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.0.0.3

[R2-ospf-1-area-0.0.0.0]network 100.1.1.0 0.0.0.3

[R2-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0

[R3]ospf 1

[R3-ospf-1]area 0

[R3-ospf-1-area-0.0.0.0]network 13.1.1.0 0.0.0.3

[R3-ospf-1-area-0.0.0.0]network 100.1.1.0 0.0.0.3

[R3-ospf-1-area-0.0.0.0]netwonetwork 2.2.2.2 0.0.0.0

nat

[R1]acl 2000

[R1-acl-basic-2000]rule 5 permit source 192.168.1.0 0.0.0.255

[R1-acl-basic-2000]rule 10 permit source 192.168.2.0 0.0.0.255

R1]interface g0/0/2

[R1-GigabitEthernet0/0/2]nat outbound 2000

[R1-GigabitEthernet0/0/2]int g4/0/0

[R1-GigabitEthernet4/0/0]nat outbound 2000

测试网络是否可达

在接口上抓包发现走的是g0/0/2口

配置路由策略

[R1]acl 2010

[R1-acl-basic-2010]rule 5 permit source 192.168.1.0 0.0.0.255

[R1-acl-basic-2010]q

[R1]acl 2020

[R1-acl-basic-2020]rule 5 permit source 192.168.2.0 0.0.0.255

流分类

[R1]traffic classifier jiaoxue

[R1-classifier-jiaoxue]if-match acl 2010

[R1-classifier-jiaoxue]q

[R1]traffic classifier bangong

[R1-classifier-bangong]if-match acl 2020

流行为

[R1]traffic behavior dianxin

[R1-behavior-dianxin]redirect ip-nexthop 12.1.1.2

[R1]traffic behavior liantong

[R1-behavior-liantong]redirect ip-nexthop 13.1.1.2

流策略

[R1]traffic policy p

[R1-trafficpolicy-p]classifier jiaoxue behavior dianxin

[R1-trafficpolicy-p]q

[R1]traffic policy q

[R1-trafficpolicy-q]classifier bangong behavior liantong

应用接口

[R1]interface g0/0/0

[R1-GigabitEthernet0/0/0]traffic-policy  p inbound

[R1-GigabitEthernet0/0/0]int g0/0/1

[R1-GigabitEthernet0/0/1]traffic-policy q inbound

测试流量路径

在pc1上面看看流量路径是怎么走的

关闭g0/0/2口，流量都走下面接口

R1]int g0/0/2

[R1-GigabitEthernet0/0/2]shutdown