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Cisco 4500 DHCP Conflicts

rmujeeb81
Level 1
Level 1

‎11-16-2008 11:41 PM - edited ‎03-06-2019 02:30 AM

Hi Group,

I have a query regarding DHCP conflicts. One of our customer is using Cisco 4500 switches in Core/Distribution and these switches are running DHCP service as well. There is one DHCP Pool configured for IP Phones (172.21.17.0/24). Today morning we got compalint from cutomer that IP Phones are not able to get IP address so I checked the primary 4500 switch and found 'DHCP conflict' log messages so I used ' claer ip dhcp conflict *' command and after that all IP Phones started getting ip addresses.

What could be the possible cause of this problem ? Should we disable logging of DHCP conflicts ?

Can we avoid such incident by using 'ip dhcp ping' command ? Kindly guide me in this reagrd.

Thanks in Advance.

Regards,

Mujeeb

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rmujeeb81
Level 1
Level 1

‎11-17-2008 03:27 AM

Dear All,

Kindly look into this matter. If you need further information then inform me.

Thanks & Regards,

Mujeeb

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