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HomeDatabaseMysql Tutorial技术广场:两条思科交换机的设置与技巧

欢迎进入网络技术社区论坛,与200万技术人员互动交流 >>进入 在一个Cisco 交换网络中间,已知某台机器的IP地址,如何找出它连接到了哪台交换机的哪个端口上呢?最方便快捷的方法使使用CiscoWorks 2000 LMS网管软件的User tracking 功能,图形化界面,一目了

欢迎进入网络技术社区论坛,与200万技术人员互动交流 >>进入

    在一个Cisco 交换网络中间,已知某台机器的IP地址,如何找出它连接到了哪台交换机的哪个端口上呢?最方便快捷的方法使使用CiscoWorks 2000 LMS网管软件的User tracking 功能,图形化界面,一目了然。

    如果没有这个软件,也可以使用以下手工分析方法来找出答案。

    示例网络:核心交换机为6509(交换引擎SE用CatOS, MSFC运行IOS软件)

    1. 找出该IP所对应的MAC地址:

    通过查看系统的ARP缓存表可以找出某IP所对应的MAC地址。由于ARP不能跨VLAN进行,所以连接各个VLAN的路由模块MSFC就是最佳的选择――一般它在每一个VLAN都有一个端口(interface vlan n),能正确地进行ARP解释。

    6509MSFC#ping 10.10.1.65

    Type escape sequence to abort.

    Sending 5, 100-byte ICMP Echos to 10.10.1.65, timeout is 2 seconds:

    Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

    6509MSFC#show arp | in 10.10.1.65

    Internet 10.10.1.65 2 0006.2973.121d ARPA Vlan2

    通过以上命令,我们知道10.10.1.65的MAC地址是0006.2973.121d, 这是IOS设备的MAC地址表达方式,在CatOS中,应写为00-06-29-73-12-1d.

    2.在交换机上找出MAC地址所对应的端口

    6509SE> (enable) show cam 00-06-29-73-12-1d

    * = Static Entry. + = Permanent Entry. # = System Entry. R = Router Entry.

    X = Port Security Entry $ = Dot1x Security Entry

    VLAN Dest MAC/Route Des [CoS] Destination Ports or VCs / [Protocol Type]

技术广场:两条思科交换机的设置与技巧

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