A-A+
思科同时匹配源和目标地址的策略路由配置测试实验
这个实验,采用并不复杂的组网形式,来验证思科路由器在同时匹配目标地址和源的情况下,进行策略路由配置的功能。具体命令如下。
1.测试拓扑:
2.基本配置:
- R1:
- interface FastEthernet0/0
- ip address 12.1.1.1 255.255.255.0
- no shutdown
- interface Loopback0
- ip address 1.1.1.1 255.255.255.0
- R2:
- interface Ethernet0/0
- ip address 12.1.1.2 255.255.255.0
- no shutdown
- !
- interface Ethernet0/1
- ip address 23.1.1.2 255.255.255.0
- no shutdown
- !
- interface Ethernet0/2
- ip address 24.1.1.2 255.255.255.0
- no shutdown
- R3:
- interface FastEthernet0/0
- ip address 23.1.1.3 255.255.255.0
- no shutdown
- !
- interface FastEthernet0/1
- ip address 50.1.1.3 255.255.255.0
- no shutdown
- R4:
- interface FastEthernet0/0
- ip address 24.1.1.4 255.255.255.0
- no shutdown
- !
- interface FastEthernet0/1
- ip address 50.1.1.4 255.255.255.0
- no shutdown
- R5:
- interface Loopback0
- ip address 5.5.5.5 255.255.255.0
- !
- interface FastEthernet0/0
- ip address 50.1.1.5 255.255.255.0
- no shutdown
3.静态路由配置:
- R1:
- ip route 0.0.0.0 0.0.0.0 12.1.1.2
- R2:
- ip route 0.0.0.0 0.0.0.0 23.1.1.3
- ip route 1.1.1.0 255.255.255.0 12.1.1.1
- R3:
- ip route 5.5.5.0 255.255.255.0 50.1.1.5
- ip route 12.1.1.0 255.255.255.0 23.1.1.2
- R4:
- ip route 1.1.1.0 255.255.255.0 24.1.1.2
- ip route 5.5.5.0 255.255.255.0 50.1.1.5
- R5:
- ip route 0.0.0.0 0.0.0.0 50.1.1.3
- ip route 1.1.1.0 255.255.255.0 50.1.1.4
4.R2策略路由配置:
A.配置访问控制列表,匹配流量:
access-list 110 permit ip 1.1.1.0 0.0.0.255 5.5.5.0 0.0.0.255
B.配置route-map,匹配流量后,设置下一跳
- route-map net5 permit 10
- match ip address 110
- set ip next-hop 24.1.1.4
- !
- route-map net5 permit 20
C.在访问控制列表对应流量的进入接口应用route-map
interface Ethernet0/0
ip policy route-map net5
5.效果测试:
A.R1直接traceroute 5.5.5.5 ,这时的源地址为12.1.1.1
- R1#traceroute 5.5.5.5
- Type escape sequence to abort.
- Tracing the route to 5.5.5.5
- 1 12.1.1.2 36 msec 80 msec 44 msec
- 2 23.1.1.3 92 msec 96 msec 60 msec
- 3 50.1.1.5 160 msec * 184 msec
- R1#
-----可以看到R2根据默认路由配置,将去往5.5.5.5的数据包下一跳扔给了R3。
B.R1指定源地址为1.1.1.1来traceroute 5.5.5.5
- R1#traceroute 5.5.5.5 source 1.1.1.1
- Type escape sequence to abort.
- Tracing the route to 5.5.5.5
- 1 12.1.1.2 44 msec 100 msec 56 msec
- 2 24.1.1.4 68 msec 64 msec 96 msec
- 3 50.1.1.5 124 msec * 140 msec
- R1#
----可以看到,R2根据策略路由配置,将源地址为1.1.1.1目标地址为5.5.5.5的下一跳扔给了R4。