IP device tracking maximum 0

For IOS 2960,375 of Cisco Catalyst 12.2 0g switch, IP device tracking is disabled by default.

 

However, after the Cisco Catalyst 2960s and 3750x switches are upgraded to 15.2, IP device tracking is enabled by default,

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In global mode, you cannot disable it. If you do not disable it, you can see this situation in show Mac add on the cascade trunk port, the hardware address of the trunk port of the Peer switch corresponds to multiple VLANs.
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This situation has serious consequences. First, all Cisco Small Business switches continuously generate such logs:

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Second, the Windows 7 client will often detect duplicated IP address 0.0.0.0, so that the DHCP server address pool will continue to show bad_address.

 

So what I want to do isCloseAll vswitchesIP device trackingAndYou can only disable it in interface mode..

 

How to disable it in interface mode:

 

(Config) # interface range G1/0/1-52

(Config-If) # IP device tracking maximum 0 here 0 stands for disable

 

Show Mac add again after closing:

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The whole world is clean, Cisco SMB switches no longer have IP conflict logs, windows7 clients no longer have IP conflict pop-up boxes, and DHCP server address pools no longer have bad_address.

This article is from the "Sukhoi" blog and will not be reproduced!