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新手上路：根據(jù)ip地址查交換機(jī)端口( 二 )

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1 00-08-02-e6-b0-85 3/11 [ALL]
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2 00-09-6b-8c-64-ec 3/11 [ALL]
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1 00-09-6b-8c-25-50 3/11 [ALL]
Do you wish to continue y/n [n]? n
由于該端口連接到另一臺交換機(jī)或HUB,必須繼續(xù)追查，方法如下：
6509SE> (enable) show cdp nei 3/11
* - indicates vlan mismatch.
# - indicates duplex mismatch.
Port Device-ID Port-ID Platform
-------- ------------------------------- ------------------------- ------------
3/11 Cisco2924 GigabitEthernet1/1 cisco WS-C2924M-XL
該命令顯示對端設(shè)備是一臺Cisco2924，假如沒有顯示，那么說明連接的是別的廠家的設(shè)備，可能要到該交換機(jī)上用類似的辦法繼續(xù)追查 。
本例子中是Cisco 設(shè)備，所有我們可以繼續(xù)：
6509SE> (enable) show cdp nei 3/11 de
Port (Our Port): 3/11
Device-ID: Cisco2924
Device Addresses:
IP Address: 10.10.0.60
Holdtime: 153 sec
Capabilities: TRANSPARENT_BRIDGE SWITCH
Version:
Cisco Internetwork Operating System Software
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 12.0(5.2)XU, MAINTENANCE INTERIM SOFTWARE
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Mon 17-Jul-00 17:35 by ayounes
Platform: cisco WS-C2924M-XL
Port-ID (Port on Neighbors"s Device): GigabitEthernet1/1
VTP Management Domain: lan
Native VLAN: 1
Duplex: full
System Name: unknown
System Object ID: unknown
Management Addresses: unknown
Physical Location: unknown
Cisco2924#show mac-address-table dynamic address 0009.6b8c.64ec
Non-static Address Table:
Destination Address Address Type VLAN Destination Port
------------------- ------------ ---- --------------------
0009.6b8c.64ec Dynamic 2 FastEthernet0/2
Cisco2924#show mac-address-table dynamic interface f0/2
Non-static Address Table:
Destination Address Address Type VLAN Destination Port
------------------- ------------ ---- --------------------
0009.6b8c.64ec Dynamic 2 FastEthernet0/2
通過以上命令可知，MAC地址0009.6b8c.64ec 與Cisco 2924交換機(jī)相連，且是該端口上唯一活動的MAC地址，所以IP為10.10.1.250的機(jī)器應(yīng)該就連接在這個端口上 。

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