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Occasional Contributor II
Posts: 17
Registered: ‎05-25-2016

Duplicated or even triplicated IP on IAP

Hi Community,

 

Did you ever come across this? 

 

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Thanks all,

Myky

Guru Elite
Posts: 21,517
Registered: ‎03-29-2007

Re: Duplicated or even triplicated IP on IAP

Are there two DHCP servers in your environment?



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 17
Registered: ‎05-25-2016

Re: Duplicated or even triplicated IP on IAP

Hello Colin,

 

We do have only one DHCP server for this particular SSID/VLAN.

But unfortunately, we do not manage it. Do you think it is because of two servers in place or due to server error. 

 

Thx,

Myky

Guru Elite
Posts: 21,517
Registered: ‎03-29-2007

Re: Duplicated or even triplicated IP on IAP

I do not know of any reason why you would have different mac addresses assigned to the same ip address, unless you had two DHCP servers...



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II
Posts: 17
Registered: ‎05-25-2016

Re: Duplicated or even triplicated IP on IAP

[ Edited ]

Thanks Colin for sharing your thoughts. We are currently investigation this. Will get back here with any further updates.

Occasional Contributor II
Posts: 17
Registered: ‎05-25-2016

Re: Duplicated or even triplicated IP on IAP

Two issues here:

 

Our DHCP server IP address pool is exhausted. IAP had default inactivity timeout for 24 hours, now changed for 12. Also adding another VLAN for additional DHCP address range.

Aruba
Posts: 1,296
Registered: ‎08-29-2007

Re: Duplicated or even triplicated IP on IAP

What is your current dhcp lease time?  Change it to something like 4 hours and adjust the inactivity to match or lower.


If my post is helpful please give kudos, or mark as solved if it answers your post.

ACCP, ACMP, ACMX #294
mclarke@arubanetworks.com
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