https://www.juniper.net/techpubs/en_US/release-ind ependent/nce/information-products/pathway-pages/nc e/nce-157-aruba-dot1x-mac
Add to my manuals
34 Pages
advertisement
Network Configuration Example
Configuring 802.1X PEAP and MAC RADIUS
Authentication with EX Series Switches and Aruba
ClearPass Policy Manager
Modified: 2016-01-07
Copyright © 2016, Juniper Networks, Inc.
Juniper Networks, Inc.
1133 Innovation Way
Sunnyvale, California 94089
USA
408-745-2000 www.juniper.net
Copyright © 2016, Juniper Networks, Inc. All rights reserved.
Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United
States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.
Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.
Network Configuration Example Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy
Manager
Copyright © 2016, Juniper Networks, Inc.
All rights reserved.
The information in this document is current as of the date on the title page.
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at http://www.juniper.net/support/eula.html
. By downloading, installing or using such software, you agree to the terms and conditions of that EULA.
ii Copyright © 2016, Juniper Networks, Inc.
Table of Contents
Chapter 1 Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy Manager . . . . . . . . . . . . . . . . . . . . . . . . 5
Example: Configuring 802.1X-PEAP and MAC RADIUS Authentication with EX
Series Switches and Aruba ClearPass Policy Manager . . . . . . . . . . . . . . . . . . . 8
Enabling 802.1X Trace Options on EX Series Switches . . . . . . . . . . . . . . . . . . 33
Performing 802.1X Diagnostics on the Windows 7 Supplicant . . . . . . . . . . . . 34
Copyright © 2016, Juniper Networks, Inc.
iii
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager iv Copyright © 2016, Juniper Networks, Inc.
CHAPTER 1
Configuring 802.1X PEAP and MAC
RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy
Manager
•
About This Network Configuration Example on page 5
•
•
•
Example: Configuring 802.1X-PEAP and MAC RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy Manager on page 8
•
Troubleshooting Authentication on page 33
About This Network Configuration Example
This network configuration example describes how you configure a Juniper Networks EX
Series Ethernet Switch and Aruba ClearPass Policy Manager to work together to authenticate wired endpoints that connect to EX Series switches. Specifically, it shows how to configure an EX Series switch and Aruba ClearPass for 802.1X Protected Extensible
Authentication Protocol (PEAP) authentication and for MAC RADIUS authentication.
Copyright © 2016, Juniper Networks, Inc.
5
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Use Case Overview
Juniper Networks EX Series Ethernet Switches are designed to meet the demands of today’s high-performance businesses. They enable companies to grow their networks at their own pace, minimizing large up-front investments. Based on open standards, EX
Series switches provide the carrier-class reliability, security risk management, virtualization, application control, and lower total cost of ownership (TCO) that businesses need today while allowing businesses to scale in an economically sensible way for years to come.
Aruba ClearPass Policy Manager is a policy management platform that provides role-based and device-based network access control (NAC) for any user across any wired, wireless, and VPN infrastructure. Enterprises with Aruba wireless infrastructure typically deploy Aruba ClearPass to provide NAC services for the wireless infrastructure.
Enterprises that also deploy EX Series switches in these environments can leverage the extensive RADIUS capabilities on EX Series switches to integrate with Aruba ClearPass.
This integration enables enterprises to deploy consistent security policies across their wired and wireless infrastructure.
Enterprises typically have a variety of users and endpoints, which results in multiple use cases that need to be addressed by their policy infrastructure. Depending on the type of endpoint and how it is being used, an endpoint might be authenticated by 802.1X
authentication, MAC RADIUS authentication, or captive portal authentication. The policy infrastructure should enable any device to be connected to any port in the access switch and to be authenticated based on the capabilities of the device, the authorization level of the user, or both.
In this network configuration example, we show how to configure a Juniper Networks and Aruba ClearPass policy infrastructure for two use cases: authenticating an employee laptop using 802.1X PEAP authentication and authenticating a guest laptop using MAC
RADIUS authentication.
Related
Documentation
•
•
Example: Configuring 802.1X-PEAP and MAC RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy Manager on page 8
•
Troubleshooting Authentication on page 33
Technical Overview
EX Series switches support endpoint access control through the 802.1X port-based network access control standard. When 802.1X authentication is enabled on a port, the switch (known as the authenticator) blocks all traffic to and from the end device (known as a supplicant) until the supplicant’s credentials are presented and matched on an authentication server. The authentication server is typically a RADIUS server or a policy manager, such as Aruba ClearPass Policy Manager, that acts as a RADIUS server. After the supplicant is authenticated, the switch opens the port to the supplicant.
illustrates the authentication process. The supplicant and authenticator communicate with each other by exchanging Extensible Authentication
6 Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Protocol over LAN (EAPoL) packets carried by the 802.1X protocol. The authenticator and the RADIUS server communicate by exchanging EAP packets carried by the RADIUS protocol.
Figure 1: 802.1X Authentication Process
Supplicant
(Client)
EAP in EAPoL
EAPoL-Start
EAP-Request/Identity
EAP-Response/Identity
EAP-Request/OTP
EAP-Response/OTP
EAP-Success
Authenticator
(Access Switch)
EAP in RADIUS
RADIUS Access-Request
RADIUS Access-Challenge
RADIUS Access-Request
RADIUS Access-Accept
Authentication
Server
(RADIUS)
Port Authorized
EAPoL-Logoff
Port Unauthorized
The 802.1X protocol supports a number of different versions of the EAP protocol. This configuration example uses PEAP. PEAP encapsulates EAP packets within an encrypted and authenticated Transport Layer Security (TLS) tunnel. Because it sets up the tunnel and is not directly involved with authenticating the endpoints, it is referred to as the outer authentication protocol. PEAP is usually paired with an inner authentication protocol that authenticates the endpoints. The most commonly used inner authentication protocol is Microsoft Challenge Handshake Authentication Protocol version 2 (MS-CHAPv2).
MS-CHAPv2 allows authentication to databases that support the MS-CHAPv2 format, such as Microsoft Active Directory.
Not all endpoints use or support an 802.1X supplicant. Endpoint that do not can be authenticated by MAC RADIUS authentication. With MAC RADIUS authentication, the switch passes the MAC address of the endpoint the RADIUS server, which tries to match the MAC address with a list of MAC addresses in its database. If the endpoint’s MAC address matches an address in the list, the endpoint is authenticated.
You can configure both 802.1X and MAC RADIUS authentication methods on the interface.
In this case, the switch first attempts to authenticate using 802.1X, and if that method fails, it attempts to authenticate the end device using MAC RADIUS authentication. If you know that only endpoints that are not 802.1X-enabled connect on the interface, you can eliminate the delay that occurs while the switch determines that the end device is not 802.1X-enabled by configuring the mac-radius restrict option. When this option is configured, the switch does not attempt to authenticate the endpoint through 802.1X
authentication but instead immediately sends a request to the RADIUS server for authentication of the MAC address of the endpoint.
EX Series switches also support dynamic VLANs and firewall filters. As part of the authentication process, a RADIUS server can return IETF-defined attributes to the switch
Copyright © 2016, Juniper Networks, Inc.
7
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager that provide VLAN and firewall filter information. You can, for example, configure a policy manager such as Aruba ClearPass to pass different RADIUS attributes back to the switch based on the policies you have defined for different users, endpoint types, authentication methods, and so forth. The switch dynamically changes the VLAN or firewall filter assigned to the port according to the RADIUS attributes it receives.
Related
Documentation
•
Example: Configuring 802.1X-PEAP and MAC RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy Manager on page 8
•
•
Troubleshooting Authentication on page 33
Example: Configuring 802.1X-PEAP and MAC RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy Manager
This configuration example illustrates how to:
•
Configure an EX Series switch, Aruba ClearPass Policy Manager, and a laptop running
Windows 7 for 802.1X PEAP authentication
• Configure an EX Series switch and Aruba ClearPass for MAC RADIUS authentication
•
Configure an EX Series switch and Aruba ClearPass to implement dynamic VLANs and firewall filters
•
•
Overview and Topology on page 8
•
•
Requirements
This example uses the following hardware and software components for the policy infrastructure:
• An EX4300 switch running Junos OS Release 14.1X53-D30 or later
• An Aruba ClearPass Policy Manager platform running 6.3.3.63748 or later
•
Laptops running Microsoft Windows 7 Enterprise
Overview and Topology
In this example, the policy infrastructure components are configured to authenticate the following endpoints:
•
An employee laptop that is configured for 802.1X PEAP authentication.
In the example configuration, Aruba ClearPass Policy Manager is configured to authenticate 802.1X users using its local user database. If the authenticated employee is listed in the database as belonging to the finance department, Aruba ClearPass
8 Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager returns the VLAN ID 201 to the switch in a RADIUS attribute. The switch then dynamically configures the laptop access port to be in VLAN 201.
• A guest laptop that is not configured for 802.1X authentication.
In this case, the switch detects that the endpoint does not have an 802.1X supplicant.
Because MAC RADIUS authentication is also enabled on the interface, the switch then attempts MAC RADIUS authentication. If the laptop MAC address is not in the Aruba
ClearPass MAC address database—as would be the case for a guest laptop—Aruba
ClearPass is configured to return the name of the firewall filter the switch should enforce on the access port. This firewall filter, which is configured on the switch, allows the guest to access to the entire network except subnet 192.168.0.0/16.
shows the topology used in this example.
Figure 2: Topology Used in this Example
10.105.5.153
Aruba ClearPass
Policy Manager ge-0/0/10
INTERNAL
NETWORK
10.105.5.91
EX4300 Switch ge-0/0/22
Guest Employee
Configuration
This section provides step-by-step instructions for:
•
Configuring the EX4300 Switch on page 9
•
Configuring Aruba ClearPass Policy Manager on page 13
•
Configuring the Windows 7 Supplicant on the Laptop on page 24
CLI Quick
Configuration
Configuring the EX4300 Switch
To quickly configure this example, copy the following commands, paste them in a text file, remove any line breaks, change any details necessary to match your network configuration, copy and paste the commands into the CLI at the [edit] hierarchy level, and then enter commit from configuration mode.
[edit] set access radius-server 10.105.5.153 dynamic-request-port 3799 set access radius-server 10.105.5.153 secret password set access radius-server 10.105.5.153 source-address 10.105.5.91
set access profile Aruba-Test-Profile accounting-order radius set access profile Aruba-Test-Profile authentication-order radius set access profile Aruba-Test-Profile radius authentication-server 10.105.5.153
Copyright © 2016, Juniper Networks, Inc.
9
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
10 set access profile Aruba-Test-Profile radius accounting-server 10.105.5.153
set access profile Aruba-Test-Profile radius options nas-identifier 10.105.5.153
set protocols dot1x authenticator authentication-profile-name Aruba-Test-Profile set protocols dot1x authenticator interface ge-0/0/10 mac-radius set protocols dot1x authenticator interface ge-0/0/22 mac-radius set protocols dot1x authenticator interface ge-0/0/10 supplicant multiple set protocols dot1x authenticator interface ge-0/0/22 supplicant multiple set interfaces ge-0/0/10 unit 0 family ethernet-switching vlan members v201 set interfaces ge-0/0/22 unit 0 family ethernet-switching vlan members v201 set vlans v201 vlan-id 201 set firewall family ethernet-switching filter mac_auth_policy_1 term Block_Internal from ip-destination-address 192.168.0.0/16 set firewall family ethernet-switching filter mac_auth_policy_1 term Block_Internal then discard set firewall family ethernet-switching filter mac_auth_policy_1 term Allow_All then accept
Step-by-Step
Procedure
The general steps to configure an EX4300 switch are:
•
Configure the connection to the Aruba ClearPass Policy Manager.
•
Create the access profile used by the 802.1X protocol. The access profile tells the
802.1X protocol which authentication server to use and the authentication methods and order.
•
Configure the 802.1X protocol.
•
Configure Ethernet switching on the ge-0/0/10 and ge-0/0/22 access ports.
•
Create the firewall policy to be used when a guest laptop connects to a port.
To configure the EX4300 switch:
1.
2.
3.
Provide the RADIUS server connection information.
[edit access] user@Policy-EX4300-01# set radius-server 10.105.5.153 dynamic-request-port
3799 user@Policy-EX4300-01# set radius-server 10.105.5.153 secret password user@Policy-EX4300-01# set radius-server 10.105.5.153 source-address 10.105.5.91
Configure the access profile.
[edit access] user@Policy-EX4300-01# set profile Aruba-Test-Profile accounting-order radius user@Policy-EX4300-01# set profile Aruba-Test-Profile authentication-order radius user@Policy-EX4300-01# set profile Aruba-Test-Profile radius authentication-server 10.105.5.153
user@Policy-EX4300-01# set profile Aruba-Test-Profile radius accounting-server
10.105.5.153
user@Policy-EX4300-01# set profile Aruba-Test-Profile radius options nas-identifier 10.105.5.153
Configure the 802.1X protocol to use Aruba-Test-Profile and to run on each access interface. In addition, configure the interfaces to use MAC RADIUS authentication and to allow more than one supplicant, each of which must be individually authenticated.
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
4.
5.
6.
[edit protocols] user@Policy-EX4300-01# set dot1x authenticator authentication-profile-name
Aruba-Test-Profile user@Policy-EX4300-01# set dot1x authenticator interface ge-0/0/10 mac-radius user@Policy-EX4300-01# set dot1x authenticator interface ge-0/0/22 mac-radius user@Policy-EX4300-01# set dot1x authenticator interface ge-0/0/10 supplicant multiple user@Policy-EX4300-01# set dot1x authenticator interface ge-0/0/22 supplicant multiple
Configure the access ports.
[edit interfaces] user@Policy-EX4300-01# set ge-0/0/10 unit 0 family ethernet-switching vlan members v201 user@Policy-EX4300-01# set ge-0/0/22 unit 0 family ethernet-switching vlan members v201
Configure VLAN 201, which is used for employees that are members of the Finance department.
[edit] user@Policy-EX4300-01# set vlans v201 vlan-id 201
Note that for dynamic VLAN assignment to work, the VLAN must exist on the switch before authentication is attempted. If the VLAN doesn’t exist, authentication fails.
Configure the firewall filter to be used when a guest laptop connects to a port.
[edit firewall] user@Policy-EX4300-01# set family ethernet-switching filter mac_auth_policy_1 term Block_Internal from ip-destination-address 192.168.0.0/16 user@Policy-EX4300-01# set family ethernet-switching filter mac_auth_policy_1 term Block_Internal then discard user@Policy-EX4300-01# set family ethernet-switching filter mac_auth_policy_1 term Allow_All then accept
Results From configuration mode, confirm your configuration by entering the following show commands.
user@Policy-EX4300-01# show access radius-server {
10.105.5.153 {
dynamic-request-port 3799;
secret "$9$FYxf3A0Ehrv87yl7Vs4DjfTz3Ct0BIcre"; ## SECRET-DATA
source-address 10.105.5.91;
}
} profile Aruba-Test-Profile {
accounting-order radius;
authentication-order radius;
radius {
authentication-server 10.105.5.153;
accounting-server 10.105.5.153;
options {
nas-identifier 10.105.5.153;
}
}
}
Copyright © 2016, Juniper Networks, Inc.
11
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
12 user@Policy-EX4300-01# show protocols dot1x {
authenticator {
authentication-profile-name Aruba-Test-Profile;
interface {
ge-0/0/10.0 {
supplicant multiple;
mac-radius;
}
ge-0/0/22.0 {
supplicant multiple;
mac-radius;
}
}
}
} user@Policy-EX4300-01# show interfaces ge-0/0/10 {
unit 0 {
family ethernet-switching {
vlan {
members v201;
}
}
}
} ge-0/0/22 {
unit 0 {
family ethernet-switching;
vlan {
members v201;
}
}
}
} user@Policy-EX4300-01# show vlans v201 {
vlan-id 201;
} user@Policy-EX4300-01# show firewall family ethernet-switching {
filter mac_auth_policy_1 {
term Block_Internal {
from {
ip-destination-address {
192.168.0.0/16;
}
}
then discard;
}
term Allow_All {
then accept;
}
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
}
}
If you are done configuring the device, enter commit from configuration mode.
Step-by-Step
Procedure
Configuring Aruba ClearPass Policy Manager
The general steps for configuring Aruba ClearPass are:
•
Add the Juniper Networks RADIUS dictionary file.
•
Add the EX4300 as a network device.
•
Ensure that the server certificate used for 802.1X PEAP authentication has been installed.
•
Add the local user used in this example and assign the user to the Finance group.
•
Create two enforcement profiles:
•
A profile that defines the RADIUS attributes for the dynamic firewall filter.
•
A profile that defines the RADIUS attributes for the dynamic VLAN.
•
Create two enforcement policies:
•
A policy that is invoked when MAC RADIUS authentication is used.
•
A policy that is invoked when 802.1X authentication is used.
•
Define the MAC RADIUS authentication service and the 802.1X authentication service.
•
Ensure that the MAC RADIUS authentication service is evaluated before the 802.1X
authentication service.
To configure Aruba ClearPass:
1.
Add the Juniper Networks RADIUS dictionary file.
a.
Copy the following contents to a file named Juniper.dct on your desktop.
################################################################################
# Juniper.dct - Radius dictionary for JUNOS devices
# (See README.DCT for more details on the format of this file)
################################################################################
# Use the Radius specification attributes
#
@radius.dct
#
# Juniper specific parameters
#
MACRO Juniper-VSA(t,s) 26 [vid=2636 type1=%t% len1=+2 data=%s%]
ATTRIBUTE Juniper-Local-User-Name
ATTRIBUTE Juniper-Allow-Commands
ATTRIBUTE Juniper-Deny-Commands
ATTRIBUTE Juniper-Allow-Configuration
Juniper-VSA(1, string) r
Juniper-VSA(2, string) r
Juniper-VSA(3, string) r
Juniper-VSA(4, string) r
Copyright © 2016, Juniper Networks, Inc.
13
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
ATTRIBUTE Juniper-Deny-Configuration Juniper-VSA(5, string) r
ATTRIBUTE Juniper-Interactive-Command
ATTRIBUTE Juniper-Configuration-Change
ATTRIBUTE Juniper-User-Permissions
ATTRIBUTE Juniper-CTP-Group
VALUE Juniper-CTP-Group Read_Only 1
Juniper-VSA(8, string) r
Juniper-VSA(9, string) r
Juniper-VSA(10, string) r
Juniper-VSA(21, integer) r
VALUE Juniper-CTP-Group Admin 2
VALUE Juniper-CTP-Group Privileged_Admin 3
VALUE Juniper-CTP-Group Auditor 4
ATTRIBUTE Juniper-CTPView-APP-Group Juniper-VSA(22,integer) r
VALUE Juniper-CTPView-APP-Group Net_View 1
VALUE Juniper-CTPView-APP-Group Net_Admin 2
VALUE Juniper-CTPView-APP-Group Global_Admin 3
ATTRIBUTE Juniper-CTPView-OS-Group Juniper-VSA(23, integer) r
VALUE Juniper-CTPView-OS-Group Web_Manager 1
VALUE Juniper-CTPView-OS-Group System_Admin 2
VALUE Juniper-CTPView-OS-Group Auditor 3
ATTRIBUTE Juniper-Primary-Dns
ATTRIBUTE Juniper-Primary-Wins
ATTRIBUTE Juniper-Secondary-Dns
ATTRIBUTE Juniper-Secondary-Wins
Juniper-VSA(31, ipaddr) r
Juniper-VSA(32, ipaddr) r
Juniper-VSA(33, ipaddr) r
Juniper-VSA(34, ipaddr) r
ATTRIBUTE Juniper-Interface-id
ATTRIBUTE Juniper-Ip-Pool-Name
Juniper-VSA(35, string) r
Juniper-VSA(36, string) r
ATTRIBUTE Juniper-Keep-Alive Juniper-VSA(37, integer) r
ATTRIBUTE Juniper-CoS-Traffic-Control-Profile Juniper-VSA(38, string) r
ATTRIBUTE Juniper-CoS-Parameter Juniper-VSA(39, string) r
ATTRIBUTE Juniper-encapsulation-overhead Juniper-VSA(40, integer) r
ATTRIBUTE Juniper-cell-overhead
ATTRIBUTE Juniper-tx-connect-speed
Juniper-VSA(41, integer) r
Juniper-VSA(42, integer) r
ATTRIBUTE Juniper-rx-connect-speed
ATTRIBUTE Juniper-Firewall-filter-name
ATTRIBUTE Juniper-Policer-Parameter
ATTRIBUTE Juniper-Local-Group-Name
Juniper-VSA(43, integer) r
Juniper-VSA(44, string) r
Juniper-VSA(45, string) r
Juniper-VSA(46, string) r
ATTRIBUTE Juniper-Local-Interface
ATTRIBUTE Juniper-Switching-Filter
ATTRIBUTE Juniper-VoIP-Vlan
Juniper-VSA(47, string) r
Juniper-VSA(48, string) r
Juniper-VSA(49, string) r
################################################################################
# Juniper.dct - Juniper Networks dictionary
################################################################################ b.
In Aruba ClearPass, navigate to Administration > Dictionaries > RADIUS and click on Import to import the Juniper.dct file.
14 Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
2.
Add the EX4300 switch as a network device.
a.
Under Configuration > Network > Devices, click Add.
b.
On the Device tab, enter the hostname and IP address of the switch and the
RADIUS shared secret that you configured on the switch. Set the Vendor Name field to Juniper.
3.
Ensure that a server certificate for 802.1X PEAP authentication exists.
Under Administration > Certificates > Server Certificate, verify that Aruba ClearPass has a valid server certificate installed. If it does not, add a valid server certificate.
Copyright © 2016, Juniper Networks, Inc.
15
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
The Aruba ClearPass documentation and your Certificate Authority can provide more details on how to obtain certificates and import them into ClearPass.
4.
Add a test user to the local user repository.
This user will be used to verify 802.1X authentication.
a.
Under Configuration -> Identity -> Local Users, click Add.
b.
In the Add Local User window, enter the user ID (usertest1), user name (Test
User), password, and select Employee as the user role. Under Attributes, select the Department attribute and type Finance under Value.
16
5.
Configure a dynamic filter enforcement profile.
This profile defines the RADIUS filter ID attribute, assigning to it the name of the firewall filter you configured on the switch. The attribute is sent to the switch when
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager the endpoint’s MAC address is not in the MAC database, enabling the switch to dynamically assign the firewall filter to the access port.
a.
Under Configuration > Enforcement > Profiles, click Add.
b.
On the Profile tab, set Template to RADIUS Based Enforcement and type the profile name, Juniper_DACL_1, in Name field.
c.
On the Attributes tab, set Type to Radius:IETF, Name to Filter-Id (11), and type the name of firewall filter, mac_auth_policy_1, in the Value field.
6.
Configure a dynamic VLAN enforcement profile.
This profile defines the RADIUS attributes for specifying VLAN 201. These RADIUS attributes are sent to the switch when a user who belongs to the Finance department authenticates using 802.1X, enabling the switch to dynamically assign VLAN 201 to the access port.
a.
Under Configuration > Enforcement > Profiles, click Add.
b.
On the Profile tab, set Template to RADIUS Based Enforcement and type the name of the profile, Juniper_Vlan_201, in the Name field.
Copyright © 2016, Juniper Networks, Inc.
17
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
18 c.
On the Attributes tab, define the RADIUS attributes as shown.
7.
Configure the MAC RADIUS authentication enforcement policy.
This policy tells Aruba ClearPass to take one of the following actions, depending on whether the endpoint’s MAC address is in the RADIUS database:
•
If the address is in the RADIUS database, send an Access Accept message to the switch.
•
If the address is not in the RADIUS database, send an Acess Accept message to the switch along with the name of the firewall filter defined in the MAC RADIUS authentication profile.
a.
Under Configuration > Enforcement > Policies, click Add.
b.
On the Enforcement tab, type the name of policy (Juniper-MAC-Auth-Policy) and set Default Profile to Juniper_DACL_1 (the profile you defined in Step
.)
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager c.
On the Rules tab, click Add Rule and add the two rules shown.
You must add the rules sequentially by creating the first rule in the Rules Editor and clicking Save before you create the second rule.
8.
Configure the 802.1X enforcement policy.
This policy tells Aruba ClearPass to take one of the following actions, depending on whether the user belongs to the Finance department or not:
•
If the user belongs to the Finance department, send an Access Accept message to the switch and the VLAN 201 information defined in the 802.1X enforcement profile.
•
If the user does not belong to Finance department, send an Access Accept message to the switch.
a.
Under Configuration > Enforcement > Policies, click Add.
b.
On the Enforcement tab, type the name of policy (Juniper_Dot1X_Policy) and set
Default Profile to [Allow Access Profile]. (This is a prepackaged profile that comes with Aruba ClearPass.)
Copyright © 2016, Juniper Networks, Inc.
19
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager c.
On the Rules tab, click Add Rule and add the rule shown.
9.
Configure the MAC RADIUS authentication service.
The configuration for this service results in MAC RADIUS authentication being performed when the RADIUS User-Name attribute and the Client-MAC-Address attribute received have the same value.
a.
Under Configuration > Services, click Add.
b.
On the Services tab, fill out the fields as shown.
c.
On the Authentication tab, remove [MAC AUTH] from the Authentication Methods list and add [EAP MD5] to the list.
20 Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager d.
On the Enforcement tab, select Juniper-MAC-Auth-Policy.
10.
Configure the 802.1X authentication service.
a.
Under Configuration > Services, click Add.
b.
On the Service tab, fill out the fields as shown.
Copyright © 2016, Juniper Networks, Inc.
21
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager c.
On the Authentication tab, set Authentication Sources to [Local User
Repository][Local SQL DB]
.
22 d.
On the Enforcement tab, set Enforcement Policy to Juniper_Dot1X_Policy.
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
11.
Verify that the MAC RADIUS authentication service policy is evaluated before the
802.1X authentication service policy.
Because Aruba ClearPass is configured to recognize MAC RADIUS authentication requests by the RADIUS User-Name attribute and the Client-MAC-Address attribute having the same value, it is more efficient to have the MAC RADIUS service policy evaluated first.
In the Services main window, verify that Juniper-MAC-Auth-Policy appears before
Juniper-MAC_Dot1X_Policy in the services list, as shown. If it does not, click Reorder and move Juniper-MAC-Auth-Policy above Juniper-MAC_Dot1X_Policy.
Copyright © 2016, Juniper Networks, Inc.
23
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Step-by-Step
Procedure
Configuring the Windows 7 Supplicant on the Laptop
This network configuration example uses the native 802.1X supplicant on the Windows
7 laptop. This supplicant must be configured for 802.1X PEAP authentication.
The general steps for configuring the Windows 7 supplicant are:
•
Ensure that the Wired AutoConfig service is started.
•
Enable 802.1X PEAP authentication for the Local Area Connection.
•
Configure the settings for server certificate validation.
•
Configure the user credential settings.
1.
Ensure that the Wired AutoConfig service is started on the laptop.
Select Control Panel > Administrative Tools > Services. Started should appear in the Wired AutoConfig Status field.
24
2.
Enable 802.1X PEAP authentication for the Local Area Connection.
a.
Under Control Panel > Network and Sharing Center > Change Adaptor Settings, right-click Local Area Connection and then click Properties.
b.
On the Authentication tab of the Local Area Connection Properties window, configure the properties as shown.
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
3.
Configure whether or not the laptop validates the Aruba ClearPass server certificate.
Click Settings to display the Protected EAP Properties window.
•
If you do not want the laptop to validate the ClearPass server certificate, uncheck
Validate server certificate.
•
If you do want the laptop to validate the ClearPass server certificate, check
Validate server certificate , type the name of the ClearPass server, and select the trusted root certificate authority for the ClearPass server certificate. The server name must match the CN in the server certificate.
Copyright © 2016, Juniper Networks, Inc.
25
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
26
4.
Configure the user credentials settings.
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
This configuration example does not use the Windows Active Directory credentials for user authentication. Instead, it uses the credentials of the local user defined on the Aruba ClearPass server.
a.
In the Protected EAP Properties window, click Configure to configure Secured password (EAP-MSCHAP v2). Clear the Automatically use my Windows logon name and password check box.
If your Aurba ClearPass server were configured to use Windows Active Directory to authenticate users, you would leave this option selected.
b.
Finish configuring the Protected PEAP Properties by clicking OK.
c.
On the Authentication tab of the Local Area Connection Properties, click
Additional Settings.
Copyright © 2016, Juniper Networks, Inc.
27
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
28 d.
In Advanced settings, select User Authentication for the authentication mode and click Replace credentials.
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager e.
Enter the user ID (usertest1) and password of the local user that you added to local user database on the Aruba ClearPass server.
Copyright © 2016, Juniper Networks, Inc.
29
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Verification
Confirm that the configuration is working properly.
•
Verifying Authentication on the EX4300 Switch on page 30
•
Verifying Status of Authentication Requests on Aruba ClearPass Policy
Verifying Authentication on the EX4300 Switch
Purpose Verify that the test user, usertest1, is being authenticated and placed in the correct VLAN.
30 Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Action
1.
Connect the Windows 7 laptop configured as described in
7 Supplicant on the Laptop” on page 24
to ge-0/0/22 on the EX4300 switch.
2.
On the switch, type the following command: user@Policy-EX4300-01> show dot1x interface ge-0/0/22.0
802.1X Information:
Interface Role State MAC address User ge-0/0/22.0 Authenticator Authenticated 00:50:56:9B:03:7F usertest1
3.
For more details, including the dynamic VLAN assignment, type: user@Policy-EX4300-01> show dot1x interface ge-0/0/22.0 detail ge-0/0/22.0
Role: Authenticator
Administrative state: Auto
Supplicant mode: Single
Number of retries: 3
Quiet period: 60 seconds
Transmit period: 30 seconds
Mac Radius: Enabled
Mac Radius Restrict: Disabled
Reauthentication: Enabled
Configured Reauthentication interval: 3600 seconds
Supplicant timeout: 30 seconds
Server timeout: 30 seconds
Maximum EAPOL requests: 2
Guest VLAN member: not configured
Number of connected supplicants: 1
Supplicant: usertest1, 00:50:56:9B:03:7F
Operational state: Authenticated
Backend Authentication state: Idle
Authentication method: Radius
Authenticated VLAN: V201
Session Reauth interval: 3600 seconds
Reauthentication due in 3397 seconds
Meaning 802.1X authentication is working as configured—usertest1 has been successfully authenticated and placed in VLAN 201.
You can use the show dot1x command to also verify that the guest laptop is being properly authenticated using MAC RADIUS authentication.
Verifying Status of Authentication Requests on Aruba ClearPass Policy Manager
Purpose Verify that the endpoints are being correctly authenticated and that the correct RADIUS attributes are being exchanged between the switch and Aruba ClearPass.
Copyright © 2016, Juniper Networks, Inc.
31
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Action
1.
Go to Monitoring > Live Monitoring > Access Tracker to display the status of the authentication requests.
The Access Tracker monitors authentication requests as they occur and reports on their status.
2.
To verify the RADIUS attributes sent by the switch to Aruba ClearPass for a particular request, click the request and then click the Input tab in the Request Details window.
32
3.
To verify the RADIUS attributes that Aruba ClearPass sent back to the switch for this request, click the Output tab.
Copyright © 2016, Juniper Networks, Inc.
Chapter 1: Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager
Meaning The Login Status field of the Access Tracker shows that the employee laptop and guest laptop are being successfully authenticated. The request details for the authentication request from usertest1 shows that the switch is sending the correct RADIUS attributes to Aruba ClearPass and that ClearPass is returning to the switch the correct RADIUS attributes specifying VLAN 201.
Related
Documentation
•
Troubleshooting Authentication on page 33
•
•
Troubleshooting Authentication
This topic describes how you get detailed diagnostic information by enabling tracing of authentication operations on the EX Series switch and on the Windows 7 supplicant.
Aruba ClearPass Policy Manager provides additional detailed diagnostic information.
See your Aruba ClearPass documentation for more information.
This topic covers:
•
Enabling 802.1X Trace Options on EX Series Switches on page 33
•
Performing 802.1X Diagnostics on the Windows 7 Supplicant on page 34
Enabling 802.1X Trace Options on EX Series Switches
You can enable trace options for the 802.1X protocol. The following set of commands enable the writing of trace logs to a file named do1x-log:
Copyright © 2016, Juniper Networks, Inc.
33
Configuring 802.1X PEAP and MAC RADIUS Authentication with EX Series Switches and Aruba ClearPass Policy Manager user@Policy-EX4300-01# set protocols dot1x traceoptions file dot1x user@Policy-EX4300-01# set protocols dot1x traceoptions file size 5m user@Policy-EX4300-01# set protocols dot1x traceoptions flag all
Use the show log CLI command to display the contents of the trace log file. For example: user@Policy-EX4300-01> show log dot1x-log user@Policy-EX4300-01> show log dot1x-log | last 10 | refresh
You can also display the contents of the trace log file from the UNIX-level shell. For example: user@Policy-EX4300-01> start shell user@Policy-EX4300-01:RE:0% tail -f /var/log/dot1x
Performing 802.1X Diagnostics on the Windows 7 Supplicant
To perform 802.1X authentication diagnostics on the Windows 7 supplicant:
1.
Start authentication tracing with the netsh command.
>netsh ras set tracing * enable
2.
Attempt authentication with the switch.
3.
Disable authentication tracing.
>netsh ras set tracing * disable
4.
Review the detailed log files under the following directory: C:\windows\tracing.
Refer to the Windows 7 documentation for more detailed information about the diagnostic capabilities of the Windows 802.1X supplicant.
Related
Documentation
•
Example: Configuring 802.1X-PEAP and MAC RADIUS Authentication with EX Series
Switches and Aruba ClearPass Policy Manager on page 8
•
•
34 Copyright © 2016, Juniper Networks, Inc.
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Related manuals
advertisement