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We are running 802.1x on Dell Latitude D600 using Broadcom 570x Network
card and some D600 series are not passing hte computername to Active
Directory for authentications so D600 series laptops are ending up in
guest VLAN instead of authenticated VLAN. Any help on this painful
issue would be appreciated.

Could you be more specific about which Cisco device you are using,
and where it is in the topology?
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What supplicant aare you using? The built in MS XP2 supplicant or
something else?

--Matt

Jay wrote:

We are running 802.1x on Dell Latitude D600 using Broadcom 570x
Network
card and some D600 series are not passing hte computername to Active
Directory for authentications so D600 series laptops are ending up in
guest VLAN instead of authenticated VLAN. Any help on this painful
issue would be appreciated.

I have a related problem. We're implementing 802.1x on a bunch of Cisco LAN switches, and I'm testing the configuration. XP workstations work just fine, but I'm obviously missing something in Windows 2000.

The laptop in question is a Dell Latitude D600 with a Broadcom 570x Gigabit transceiver. My question is that I cannot seem to find the switch in the O/S to enable 802.1x. We're running SP4, and I've downloaded and installed the Roll up to SP4 that Microsoft installed a couple of months ago. I've installed the latest Broadcom 570x driver as well. We've got hundreds of these things and I need to see it work. I'm more of a network specialist than a desktop/laptop guy, but I've been tasked with end-to-end on this one. Ideas?

Dell hasn't been helpful yet, but I am not the guy that usually talks to their suppport people. Maybe next week, but I thought I'd ask some questions here first.

I know that historically, 802.1x is a WiFi related protocol, but we're using it with switches and wired workstations. I wouldn't be surprised if we've disabled everything relating to wireless, and this somehow killed 802.1x support.

I also understand that in W2K, unlike XP, the O/S needs some sort of helper application to drive the 802.1x support, so I'd expect that to be some sort of application supplied wither by Dell or by Broadcom.

Thanks!