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Contributor II
Posts: 68
Registered: ‎01-25-2013

unknown ip's popping up in user-table

Hi,

 

when i view the user-table on a controller, i see ip addresses popping up  which are not within our network. Alongside is then their address (in 192.168 range) they get from our internal dhcp server. 

 

(WIFI-BE-DI-004) # show user-table | include 90:b9:31:d4:94:ee
78.22.43.27 90:b9:31:d4:94:ee authenticated 00:04:12 AP-BE-DI-023 Wireless mgmt/d8:c7:c8:6a:19:11/g-HT mgmt-aaa_prof tunnel iPad
192.168.103.90 90:b9:31:d4:94:ee authenticated 00:04:12 AP-BE-DI-023 Wireless mgmt/d8:c7:c8:6a:19:11/g-HT mgmt-aaa_prof tunnel iPad

 

Where could these come from?

Guru Elite
Posts: 21,487
Registered: ‎03-29-2007

Re: unknown ip's popping up in user-table

They could come from:

 

- "leakage" of WAN addresses of mobile devices through the WLAN interface

- "leakage" of VMWARE addresses through the WLAN interface

- static ip addresses on hosts

 

You can use "enforce-dhcp" in the AAA profile so that the controller will only allow ip addresses that were obtained through DHCP in the controller:  https://arubanetworkskb.secure.force.com/pkb/articles/HowTo/What-does-enforce-dhcp-option-in-aaa-profile-do

 



Colin Joseph
Aruba Customer Engineering

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