pbr应用
目的：
让
3.1.1
.1/24
、
3.2.1.1/24
、
3.3.1.1/24
到
1.1.1.1/24
的路由走
R4
到
R1
；
让
3.4.1
.1/24
、
3.5.1.1/24
、
3.6.1.1/24
到
1.1.1.1/24
的路由走
R3
到
R1
。
第一步：网络互通
(
略
)
第二步：在
R3
上配制
PBR
（
policy-based routing
）
R3(config)#acce
R3(config)#access-list 1 per
R3(config)#access-list 1 permit 3.1.1 .1
R3(config)#access-list 1 permit 3.2.1 .1
R3(config)#access-list 1 permit 3.3.1 .1
R3(config)#acce
R3(config)#access-list 2 per
R3(config)#access-list 2 permit 3.4.1 .1
R3(config)#access-list 2 permit 3.5.1 .1
R3(config)#access-list 2 permit 3.6.1 .1
R3(config)#
R3(config)#route
R3(config)#route-
R3(config)#route-map
R3(config)#route-map PBR permit 10
R3(config-route-map)#ma
R3(config-route-map)#match ip add 1
R3(config-route-map)#se
R3(config-route-map)#set ip nex
R3(config-route-map)#set ip next-hop 34.0.0.4
R3(config-route-map)#exit
R3(config)#route-map PBR permit 20
R3(config-route-map)#match ip add 2
R3(config-route-map)#set ip next-ho p 23.0.0 .2
R3(config-route-map)#exit
R3(config)#route-map PBR permit 30
R3(config-route-map)#exit
R3(config)#int s 2/1
R3(config-if)#ip pol
R3(config-if)#ip policy ro
R3(config-if)#ip policy route-map PBR
R3(config-if)#EXIT
R3(config)#int s 2/2
R3(config-if)#ip policy route-map PBR
R3(config-if)#end
R3#
第三步：使用
traceroute
命令进行测试
R3#traceroute
Protocol [ip]:
Target IP address: 1.1.1 .1
Source address: 3.4.1 .1
Numeric display [n]:
Timeout in seconds [3]:
Probe count [3]:
Minimum Time to Live [1]:
Maximum Time to Live [30]:
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Type escape sequence to abort.
Tracing the route to 1.1.1 .1
1 34.0.0.4 168 msec 144 msec 96 msec
2 14.0.0 .1 264 msec * 192 msec
R3#tr
R3#traceroute
Protocol [ip]:
Target IP address: 1.1.1 .1
Source address: 3.5.1 .1
Numeric display [n]:
Timeout in seconds [3]:
Probe count [3]:
Minimum Time to Live [1]:
Maximum Time to Live [30]:
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Type escape sequence to abort.
Tracing the route to 1.1.1 .1
1 34.0.0.4 120 msec 136 msec 96 msec
2 14.0.0 .1 192 msec * 192 msec
R3#
R3#traceroute
Protocol [ip]:
Target IP address: 1.1.1 .1
Source address: 3.1.1 .1
Numeric display [n]:
Timeout in seconds [3]:
Probe count [3]:
Minimum Time to Live [1]:
Maximum Time to Live [30]:
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Type escape sequence to abort.
Tracing the route to 1.1.1 .1
1 34.0.0.4 120 msec 120 msec 72 msec
2 14.0.0 .1 168 msec * 168 msec
R3#tr
R3#traceroute
Protocol [ip]:
Target IP address: 1.1.1 .1
Source address: 3.2.1 .1
Numeric display [n]:
Timeout in seconds [3]:
Probe count [3]:
Minimum Time to Live [1]:
Maximum Time to Live [30]:
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Type escape sequence to abort.
Tracing the route to 1.1.1 .1
1 34.0.0.4 92 msec 72 msec 120 msec
2 14.0.0 .1 168 msec * 168 msec
R3#