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RSPN技術(shù) SPAN技術(shù)主要是用來(lái)監(jiān)控交換機(jī)上的數(shù)據(jù)流，大體分為兩種類(lèi)型，本地SPAN和遠(yuǎn)程SPAN. ----Local Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN)，實(shí)現(xiàn)方法上稍有不同。 利用SPAN技術(shù)我們可以把交換機(jī)上某些想要被監(jiān)控端口（以下簡(jiǎn)稱(chēng)受控端口）的數(shù)據(jù)流COPY或MIRROR一 份，發(fā)送給連接在監(jiān)控端口上的流量分析儀，比如CISCO的IDS或是裝了SNIFFER工具的PC. 受控端口和 監(jiān)控端口可以在同一臺(tái)交換機(jī)上（本地SPAN），也可以在不同的交換機(jī)上（遠(yuǎn)程SPAN）。 實(shí)驗(yàn)器材：兩臺(tái)華為s2000hi交換機(jī)，一臺(tái)s2000ei交換機(jī)，一臺(tái)路由器，一臺(tái)pc機(jī)，一臺(tái)虛擬機(jī)做ndis服務(wù)器

配置sw1： [sw1]vlan 10 [sw1-vlan10]remote-probe vlan enable [sw1-vlan10]inter eth1/0/1 [sw1-Ethernet1/0/1]port link-type trunk [sw1-Ethernet1/0/1]port trunk permit vlan 10 Please wait... Done. [sw1-Ethernet1/0/1]quit [sw1]mirro? mirroring-group [sw1]mirroring-group 1 remote-destination [sw1]mirroring-group 1 monitor-port eth1/0/2 [sw1]mirroring-group 1 remote-probe vlan 10 配置sw2： [sw2]vlan 10 [sw2]inter e0/1 [sw2-Ethernet0/1]port link-type trunk [sw2-Ethernet0/1]port trunk permit vlan 10 Please wait... Done. [sw2-Ethernet0/1]inter e0/2 [sw2-Ethernet0/2]port link-type trunk [sw2-Ethernet0/2]port trunk permit vlan 10 Please wait... Done. 配置sw3： [sw3]vlan 10 [sw3-vlan10]remote-probe vlan enable [sw3-vlan10]inter eth1/0/2 [sw3-Ethernet1/0/2]port link-type trunk [sw3-Ethernet1/0/2]port trunk permit vlan 10 Please wait... Done. [sw3-Ethernet1/0/2]mirroring-group 1 remote-source [sw3]mirroring-group 1 mirroring-port eth1/0/10 ? Ethernet?Ethernet interface bothMonitor the inbound and outbound packets inboundMonitor the inbound packets outbound?Monitor the outbound packets toRange of interfaces [sw3]mirroring-group 1 mirroring-port eth1/0/10 eth1/0/20 both The remote source mirroring group doesn't support mirroring port of both direction! [sw3]mirroring-group 1 mirroring-port eth1/0/10 both The remote source mirroring group doesn't support mirroring port of both direction! [sw3]mirroring-group 1 mirroring-port eth1/0/10 eth1/0/20 inbound [sw3]mirroring-group 1 reflector-port eth1/0/5 [sw3]mirroring-group 1 remote-probe vlan 10 [sw3]dis mirroring-group remote-source mirroring-group 1: type: remote-source status: active mirroring port: Ethernet1/0/10?inbound Ethernet1/0/20?inbound reflector port: Ethernet1/0/5 remote-probe vlan: 10 [sw3] 配置路由器： [r10]inter e0 [r10-Ethernet0]ip address 192.168.1.2 24 [r10-Ethernet0] [r10-Ethernet0] [r10-Ethernet0] [r10-Ethernet0] [r10-Ethernet0] [r10-Ethernet0]quit [r10] [r10] [r10] [r10]local-user user1 password sim 123 ser admin 測(cè)試： 用pc2（192.168.1.3）telnetpc1（192.168.1.2） 用sniffer抓包：

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轉(zhuǎn)載于:https://blog.51cto.com/liufan0321/1080048

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