Dell W-Clearpass 100 Networking Solution Extreme XOS Integration Guides PDF

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Summary of Content for Dell W-Clearpass 100 Networking Solution Extreme XOS Integration Guides PDF

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Dated Tested: 13 June 2007 AmigoPod Version: Engine 0.99.35, Radius Services 0.6.10 Plugins Required: Standard build only Extreme Hardware X450 (other XOS platforms should be supported) Extreme S/W Version: EXOS 12.x Integration: HTTP Captive Portal Overview: The Extreme range of Ethernet switches are based on a common operating system known as ExtremeXOS. ExtremeXOS is a highly resilient, modular operating system that provides continuous uptime, manageability and operational efficiency, including many advanced port security and NAC features. The switch used for the integration testing was a Summit X450. The highly flexible Summit X450e switch provides high-density gigabit plus optional 10 Gigabit Ethernet ports in a compact 1RU format, supporting a wide range of Layer 2 to Layer 4 functionalities on every port.

Integration: The key feature of the ExtremeXOS used to integrate with amigopod is its ability to support what Extreme call their Network Login feature set. Network login controls the admission of user packets into a network by allowing MAC addresses from users that are properly authenticated. Network login is controlled on a per port basis. When network login is enabled on a port, that port does not forward any packets until authentication takes place. Network login is capable of three types of authentication: web-based, MAC-based, and 802.1x. In addition, network login has two different modes of operation: Campus mode and ISP mode. The authentication types and modes of operation can be used in any combination. When web-based network login is enabled on a switch port, that port is placed into a non-forwarding state until authentication takes place. To authenticate, a user must open a web browser and provide the appropriate credentials. These credentials are either approved, in which case the port is placed in forwarding mode, or not approved, in which case the port remains blocked. You can initiate user logout by submitting a logout request or closing the logout window. Currently EXOS only supports the use of the internally hosted authentication page although from version 12.x onwards the look and feel of this page can be heavily customized. Nonetheless, currently this restriction prevents the use of the amigopod Web Logins feature that allows fully customizable external authentication pages.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 1: Starting with the X450 in a default configuration state, create three VLANs to represent the following roles in the network design:

1. VLAN to connect corporate IT resources including the amigopod server (in example Office) 2. VLAN to connect to the Internet or DMZ segment (in example Guest) 3. VLAN to temporarily place the unauthenticated visitors piror to VLAN move (in example

unsecured)

create vlan "guest" configure vlan guest tag 30 create vlan "office" configure vlan office tag 10 create vlan "unsecured" configure vlan unsecured tag 20

Step 2: Now assign switch ports to the Office and Guest VLANs so the amigopod server and Internet/DMZ connection can be made:

configure vlan Default delete ports all configure vlan guest add ports 17-24 untagged configure vlan office add ports 1-8 untagged

Note: There is no requirement at this point to assign switch ports to the unsecured VLAN as this is done explicitly during the configuration of the Web Login feature in subsequent steps. Step 3: Assign IP Addressing details to each VLAN and ensure that IP Forwarding is enabled for only VLANs office and guest (not unsecured):

configure vlan office ipaddress 10.0.20.1 255.255.255.0 enable ipforwarding vlan office configure vlan unsecured ipaddress 192.168.2.1 255.255.255.0 configure vlan guest ipaddress 192.168.1.10 255.255.255.0 enable ipforwarding vlan guest

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 4: Next the unsecured VLAN must be enabled to support Web Login using the following commands:

configure netlogin vlan unsecured enable netlogin web-based enable netlogin ports 9-16 web-based

The following commands are defaults for the Web Login feature set see the EXOS Concepts Guide for more information on how these parameters can be modified to suit your implementation.

enable netlogin logout-privilege enable netlogin session-refresh 3 configure netlogin base-url "network-access.com" configure netlogin redirect-page "http://www.extremenetworks.com" configure netlogin banner ""

Step 5: Configure DHCP Service for the unsecured VLAN to allow visitor laptops to automatically receive a temporary IP Address before being moved to the guest VLAN. The assumption of this example is that DHCP is being served on the guest VLAN by the Internet gateway or other DHCP server.

configure vlan unsecured dhcp-address-range 192.168.2.50 - 192.168.2.99 configure vlan unsecured dhcp-options default-gateway 192.168.2.1 configure vlan unsecured dhcp-options dns-server 202.12.144.10 enable dhcp ports 9-16 vlan unsecured

Step 6: Finally, the AAA RADIUS configuration of the Extreme X450 must be configured to point at the amigopod server. In the example below the amigopod server is residing on IP Address 10.0.20.51 and the default authentication and accounting ports are 1812 and 1813 respectively. The following XOS commands configure the required AAA components to support Web Login functionality.

configure radius netlogin primary server 10.0.20.51 1812 client-ip 10.0.20.1 vr VR- Default configure radius netlogin primary shared-secret encrypted ue{ofdqw configure radius-accounting netlogin primary server 10.0.20.51 1813 client-ip 10.0.20.1 vr VR-Default configure radius-accounting netlogin primary shared-secret encrypted ue{ofdqw

Note: NAS Shared Secret _______________________ This will be required at a later step.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 7: Now that a fixed IP Address has been defined for the Extreme X450 switch, this needs to be defined within the amigopod configuration. Typically, the amigopod software is installed on an appliance or server with a fixed IP Address and potentially a locally defined host name. Referring back to your initial installation of the amigopod solution, open a web browser and enter either the IP Address or host name defined during the installation. You should be presented with a login screen similar to the one below:

Enter your username and password. The default amigopod username is admin and the password is amigopod.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 8 Once successfully logged into the AmigoPod administration interface, you will be presented with the AmigoPod Home Page where the RADIUS Services section can be accessed. Click on RADIUS Services on the screen shown below:

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 9 From the Radius Services menu, select Network Access Servers:

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 10 Being a new install, there are currently no NAS entries defined. Click on the Create icon at the top of the page shown below:

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 11 Fill out the details of the Create NAS form based on the IP Addressing details defined for the Extreme Switch on the office VLAN in Step 3. Leave the default Other NAS entry for the NAS Type and define a shared secret that was configured in the EXOS AAA configuration in Step 6. Once complete click on the Create NAS Device button.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 12 Once the NAS has been created, the RADIUS Server needs to be restarted for the changes to take affect. This can be seen from the warning message shown at the top of the screen and the button below should be clicked to initiate a restart of the RADIUS services.

Once the RADIUS services have restarted the next step is to create the RADIUS Vendor Specific Attributes (VSA) required to implement the VLAN Move on positive authentication. These are defined through the amigopod RADIUS Services User Roles and Dictionary Menu Options. Click on User Roles from the RADIUS Services Menu.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 13 Being a new install, there are currently no Extreme Specific User Roles defined. A User Role is a collection or RADIUS standard or Vendor Specific attributes that defined the way a RADIUS NAS should respond to a positive authentication. In the case of Extreme XOS, the following VSA are defined and available for use in this style of configuration. For more information on these attributes please refer to the Extreme XOS Concepts Guide:

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Click on the Create a new role this role will include the Extreme Vendor Specific Attributes:

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 14: Name the Role for example as Extreme-Guest and give it a brief description and then save the changes.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 15: Once the User Role has been created and saved, start adding the Extreme VSA attributes using the Add Attribute button shown below. For example, this is adding the Extreme Netlogin Vlan VSA 203

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 16: This example is adding the Extreme Netlogin Only VSA 206.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 17: This example is adding the Extreme URL Redirect VSA 204.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 18: Once these basic VSAs have been added, save the changes and the screen will be returned to the User Roles page where the new role can be viewed:

Now the solution is ready to test connect a test laptop to any of the port 9 16 on the unsecured VLAN.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 19: Now that the test laptop is successfully connected to the unsecured VLAN, the only step remaining is to login as a guest user. To do this a test user must exist in the amigopod database. Returning back to the amigopod Web interface, select Guest Manager from the left hand menu:

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 18: Selecting the Create New Guest Account option will present the following form that can be completed with the details of your test user. Fill out details of the test user including how long the user should have access to the internet from the Account Expiry drop down box and also the Role that the account should be assigned to. This role should be selected as Extreme-Guest as per the configuration in steps 14 -18.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 19: After clicking on the Create Account button, the new user account will be written to the amigopod database and a confirmation screen will be presented with the login credentials. Be sure to either record the email address and password presented or select the Print Receipt option to print out a copy of the login credentials (For more information on creating and defining Print Receipt Templates please see the amigopod User Guide).

Note: Guest Username _______________________ This will be required at a later step. Note: Guest Password _______________________ This will be required at a later step.

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

Step 20: Returning back to the test laptop now, open up a web browser such as Internet Explorer or Firefox and assuming a Home Page is configured the browser will automatically attempt to connect to the Internet. The Extreme Switch will then capture this attempt and redirect the web browser to the internal authentication Web Login page on the Extreme Switch as shown below:

Enter the Guest Username and Password recorded at the previous step and click on the Login button to be connected to the Internet. The web browser should now be redirected to the URL defined in step 17 in this case www.amigopod.com

amigopod Integration Guides Extreme XOS

copyright 2007 amigopod pty ltd.

In this example, the URL was defined in the User Role to be configured to go to www.amigopod.com and therefore after successful authentication the browser will be redirected straight to the amigopod home page and also a separate pop-up window will be displayed detailing the amount of time still left on the Test Users account as shown below:

If you have experienced any issues setting up this integration with amigopod please step back through the document and verify the configuration. If the problem has not been resolved, please contact amigopod on support@amigopod.com with the details of the issue. We value your feedback.

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