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Switch and Router Technology - 36-Port Mirroring
2022-08-11 04:55:00 【w Spicy little prince】
目录
一、交换机端口镜像
1.1分类
- 本地端口镜像
在一台交换机上
2.远程端口镜像
将交换机A的某接口数据镜像到交换机Bon an interface of

1.2 基本概念
将一个或多个源端口的数据流量转发到某一个指定端口

1.3 目的
Facilitates analysis of traffic on one or more network interfaces(IDS入侵检测设备)
Mirror traffic to ports,对流量进行分析
1.4 功能
Backup traffic,故障分析,流量备份
1.5 实验

将PC1interface on the switchF0/5mirrored to the switch withPC2的接口F0/2 PC1访问PC3时,PC2You can capture data traffic by grabbing itPC1的流量
交换机上配置
SW1(config)#monitor ?
event-trace Tracing of system events
session Configure a SPAN session
SW1(config)#monitor session ?
<1-2> SPAN session number
SW1(config)#monitor session 1 ?
destination SPAN destination interface or VLAN
filter SPAN filter VLAN
source SPAN source interface or VLAN
SW1(config)#monitor session 1 source ?
interface SPAN source interface
vlan SPAN source VLAN
SW1(config)#monitor session 1 source int f0/5 ?
, Specify another range of interfaces
- Specify a range of interfaces
both Monitor received and transmitted traffic
rx Monitor received traffic only
tx Monitor transmitted traffic only
<cr>
SW1(config)#monitor session 1 source int f0/5 both
SW1(config)#monitor session 1 d
SW1(config)#monitor session 1 destination int f0/9
使用PC1 ping PC3 在F0/2进行抓包

Configured on the physical machine
操作一样,使用,xshellConnect to the switch for configuration
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