路由器端口镜像的配置与实验（eNSP）

概述：路由器交换机的镜像口核心作用是复制端口的网络流量，供监控、分析设备抓取数据，主要用于网络故障排查、流量分析和安全审计与监控（对关键区域端口进行流量镜像，结合IDS或日志审计工具，监控敏感数据或恶意行为等）等场景。

*eNSP中的交换机端口配置镜像之后，镜像口****抓不到镜像流量，这里使用路由器AR3260演示。（主要是Router没法识别镜像端口的配置命令）。

1、topo图

2、配置

网络可达：

复制代码

[Huawei]int g0/0/0

[Huawei-GigabitEthernet0/0/0]ip add 192.168.0.1 24

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

[Huawei-GigabitEthernet0/0/1]ip add 192.168.1.1 24

[Huawei]dis ip int bri
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 1

Interface                         IP Address/Mask      Physical   Protocol
GigabitEthernet0/0/0              192.168.0.1/24       up         up
GigabitEthernet0/0/1              192.168.1.1/24       up         up
GigabitEthernet0/0/2              unassigned           up         down
NULL0                             unassigned           up         up(s)
[Huawei]

观察口，镜像口配置：

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[Huawei]observe-port int g0/0/2

[Huawei]int g0/0/1

[Huawei-GigabitEthernet0/0/1]mirror to observe-por both

[Huawei]dis mirror    //查询镜像端口
  ---------------------------------------------------------------------------
    Mirror-port              Direction  Observe-dest
  ---------------------------------------------------------------------------
  1 GigabitEthernet0/0/1     Both       GigabitEthernet0/0/2
  ---------------------------------------------------------------------------

[Huawei]dis observe-port    //查询观察口
  ----------------------------------------------------------------------
  Index    : 1
  Interface: GigabitEthernet0/0/2
  Used     : 2
  ----------------------------------------------------------------------

3、镜像验证

*关于eNSP可以配置镜像但是无法抓取镜像流量报文问题评论区可探讨。