Original Message:
Sent: Oct 15, 2024 11:27 AM
From: chulcher
Subject: Aruba IAP cluster ClearPass authentication, untagged - tagged vlan
You can create a local user role on the switch, configure the role to include device-mode operation.
https://www.arubanetworks.com/techdocs/AOS-S/16.11/ASG/YC/content/common%20files/aaa-aut-use-rol-nam-por-mod16.htm
Or, return the HPE-Port-Dot1x-Port-Mode
VSA that puts the port in device mode.
https://community.arubanetworks.com/discussion/mac-authentication-aos-s
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Carson Hulcher, ACEX#110
Original Message:
Sent: Oct 15, 2024 08:49 AM
From: erik.boss
Subject: Aruba IAP cluster ClearPass authentication, untagged - tagged vlan
Switch(config)# aaa authentication port-access
local Use local switch user/password database.
eap-radius Use EAP capable RADIUS server.
chap-radius Use CHAP (MD5) capable RADIUS server
No auth-mode even on the 3930M as on the 2540.
Thanks,
Erik
Original Message:
Sent: Oct 15, 2024 08:28 AM
From: jonas.hammarback
Subject: Aruba IAP cluster ClearPass authentication, untagged - tagged vlan
Do you have the command device port-mode in the switch?
It's the same in 2930F and other AOS switches I have worked with. So I expect it to be present also in 2540:
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Best Regards
Jonas Hammarbäck
MVP Guru 2024, ACEX, ACDX #1600, ACCX #1335, ACX-Network Security, Aruba SME, ACMP, ACSA
Aranya AB
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Original Message:
Sent: Oct 15, 2024 08:17 AM
From: erik.boss
Subject: Aruba IAP cluster ClearPass authentication, untagged - tagged vlan
Hi Jonas,
my Aruba 2540 does not have the device mode option, CX is does.
Do you mean this?
device-profile name "default-ap-profile"
untagged-vlan 31
tagged-vlan 5,6
exit
device-profile type "aruba-ap"
enable
exit
Thanks in advance
Erik
Original Message:
Sent: Oct 15, 2024 08:00 AM
From: jonas.hammarback
Subject: Aruba IAP cluster ClearPass authentication, untagged - tagged vlan
Hi Erik
It looks like you are performing authentication of the wireless client in the switch as well to me. Is that correct?
The right way to do this is to set the switch port to device-mode and not authenticate the wireless clients in the switch. Instead they should be authenticated in the access point.
I think this is the correct Aruba Radius attribute to send:

I often use Downloadable User roles, thus I'm a bit unsecure if it's the correct one.
So in ClearPass you will authenticate the access point with a wired service, and the wireless clients with a service for wireless clients.
Also for the troubleshooting, verify that the client VLAN works as intended by temporary configure a port without authentication and untagged VLAN 5 and connect a client. Does the client get an IP and is able to communicate normally.
------------------------------
Best Regards
Jonas Hammarbäck
MVP Guru 2024, ACEX, ACDX #1600, ACCX #1335, ACX-Network Security, Aruba SME, ACMP, ACSA
Aranya AB
If you find my answer useful, consider giving kudos and/or mark as solution
Original Message:
Sent: Oct 15, 2024 04:48 AM
From: erik.boss
Subject: Aruba IAP cluster ClearPass authentication, untagged - tagged vlan
Good day,
I'm struggling with an issue.
I want to autenticatie my Aruba Instant cluster with ClearPass. That works, the AP is found, receving the right untagged vlan.
In my ClearPass config I have the tagged vlan set with the HPE Egress vlan ID.
I can see in my Aruba 2540 switch the tagged vlans received.
sh port-a cl 46 de
Port Access Client Status Detail
Client Base Details :
Port : 46 Authentication Type : mac-based
Client Status : authenticated Session Time : 2137 seconds
Client Name : d015a6cbe80a Session Timeout : 10800 seconds
MAC Address : d015a6-cbe80a
IP : 10.10.31.104
Access Policy Details :
COS Map : Not Defined In Limit Kbps : Not Set
Untagged VLAN : 31 Out Limit Kbps : Not Set
Tagged VLANs : 5, 6
Port Mode : 1000FDx
When I want to connect to one of the SSID, I don;t receive an IP-address. The firewall is the DHCP server in this case.
ClearPass will put my client in the right vlan.
I've tried many switchport options, but ClearPass will push the tagged vlans.
The client output in the switch
Client Base Details :
Port : 46 Authentication Type : mac-based
Client Status : rejected no vlan Session Time : 11 seconds
Client Name : 466c7c0cd922 Session Timeout : 0 seconds
MAC Address : 466c7c-0cd922
No user roles or whatever is used.
What do I miss? I found other topics related to my issue, but did not work.
Thanks for our reply
Regards,
Erik