Thank you very much. Your comment and advice are very helpful to understand Radius mechanism I replaced the AP(Belkin54g) with new one(DWL-8200AP, D-Link). As a result, the delay time is reduced from 18 sec to 0.15 sec I measured the time stamp the captured packet-based on Network Monitor 3.1(M$) However, I'm not sure it depends on AP's feature or not. I have already installed VMware tools in that measuring, so networking configuration is ok. Lastly, concerned with "Looking up realm", Actually, I didn't know very well about this, I just use the user name like that style. Can you explain in detail? Best. ******************** Jaejong Baek 02-365-7966 ******************* Message: 3 Date: Thu, 18 Feb 2010 10:02:22 +0000 From: Alan Buxey <A.L.M.Buxey@lboro.ac.uk> Subject: Re: How long it take to auth in 802.1X/WPA-enterprise? To: FreeRadius users mailing list <freeradius-users@lists.freeradius.org> Cc: "freeradius-users-owner@lists.freeradius.org" <freeradius-users-owner@lists.freeradius.org> Message-ID: <20100218100222.GA11728@lboro.ac.uk> Content-Type: text/plain; charset=us-ascii Hi,

How long it take to auth in 802.1X/WPA-enterprise?

depends on the system and what methods etc...but easily under 1 second here

In this simple network model, I have tried to auth using

EAP-TLS(self-certification) and it works good.

By the way, about 18 seconds are taken to auth as follow debug logs.

(confer the timestamp (1) and (2))

wheres the real authentication - ie Access-Accept return packet? do you have vmware tools on your ubuntu VMware hosted system - and therefore using vmxnet driver instead of the slow pcnet32 ? (lsmod | grep vmx) turn off any non-needed modules - eg are you ever going to use /etc/passwd for user accounts? if not, comment out the unix module whenever it appears.. likewise files, expiration, logintime etc..... make sure you are not going to be needign them though! ..also...

Wed Feb 17 21:37:00 2010 : Info: [suffix] Looking up realm

"xxxx.yyy.zz.vv" for User-Name = "kkk@xxxx.yyy.zz.vv"

Wed Feb 17 21:37:00 2010 : Info: [suffix] No such realm "xxxx.yyy.zz.vv"

are you deliberately not dealing with this realm? are you expecting it to be sent elsewhere? alan