Cisco路由器进行ip限速的配置方法

2811路由器来完成，本实验分两种方法来做，各有特点。

先看下路由器的flash:

yourname#dir

Directory of flash:/

1 -rw- 25438028 Oct 22 2010 02:25:58 +00:00 c2800nm-ipbase-mz.124-15.T.bin

2 -rw- 1505280 Oct 22 2010 02:26:08 +00:00 common.tar

3 -rw- 931840 Oct 22 2010 02:26:16 +00:00 es.tar

4 -rw- 1038 Oct 22 2010 02:26:20 +00:00 home.shtml

5 -rw- 112640 Oct 22 2010 02:26:26 +00:00 home.tar

6 -rw- 415956 Oct 22 2010 02:26:34 +00:00 sslclient-win-1.1.4.176.pkg

7 -rw- 2748 Oct 22 2010 02:26:38 +00:00 sdmconfig-2811.cfg

8 -rw- 35316 Apr 5 2011 06:09:42 +00:00 crashinfo_20110405-060943

9 -rw- 42068 Apr 5 2011 06:30:26 +00:00 crashinfo_20110405-063027

128733184 bytes total (100229120 bytes free)

以下是实验过程

access-list 102 permit ip 192.168.1.0 0.0.0.255 any

access-list 102 permit ip any 192.168.1.0 0.0.0.255

第二步：定义class-map ,调用第一步的ACL

class-map match-all 102

match access-group 102

第三步：定义policy-map，调用class-map，做速率限制

policy-map 102

class 102

police 256000 8000 conform-action transmit exceed-action drop

第四步：把policy-map应用到接口上

interface FastEthernet0/1

service-policy input 102

service-policy output 102

*Apr 5 06:24:04.023: %IP_VFR-4-FRAG_TABLE_OVERFLOW: FastEthernet0/1: the fragment table has reached its maximum threshold 16

FastEthernet0/1

Service-policy input: 102

Class-map: 102 (match-all)

2746 packets, 672324 bytes

5 minute offered rate 20000 bps, drop rate 0 bps

Match: access-group 102

police:

cir 256000 bps, bc 8000 bytes

conformed 2746 packets, 672324 bytes; actions:

transmit

exceeded 0 packets, 0 bytes; actions:

drop

conformed 90000 bps, exceed 0 bps

Class-map: class-default (match-any)

13407 packets, 1753107 bytes

5 minute offered rate 49000 bps, drop rate 0 bps

Match: any

Service-policy output: 102

Class-map: 102 (match-all)

3506 packets, 2954143 bytes

5 minute offered rate 68000 bps, drop rate 44000 bps

Match: access-group 102

police:

cir 256000 bps, bc 8000 bytes

conformed 2243 packets, 1195420 bytes; actions:

transmit

exceeded 1263 packets, 1758723 bytes; actions:

drop

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如果你不了解IP和路由器这方面的知识，相信本文能让您学到一些东西，当路由器接收到一个不知道路由器ip地址的数据包时，它会尝试发送ARP广播来解析，如果有目标主机回应这个ARP广播，则路由器会把数据包转发给目标主>>>详细阅读

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