Wired 802.1x auth - Getting the IP address of the authed machine

tnt at kalik.net tnt at kalik.net
Wed Feb 25 10:47:23 CET 2009

>I have a wired 802.1x auth setup on cisco gear.  I would like to
>record the IP address of machines that connect and are authorized.  Is
>this possible?
>I currently see NAS-IP-Address and Client-IP-Address as the IP of the
>switch.  The Calling-Station-Id is the correct mac address of the
>authorized machine.  The machines that are connecting to be authed are
>allocated their address using dhcp.

You will need to get accounting packets for that.

Ivan Kalik
Kalik Informatika ISP

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