Remote-access Guide

configuring radius authentication with cisco remote access client vpn

by Caesar Skiles Published 2 years ago Updated 1 year ago

How do I set the RADIUS authentication on a Cisco switch?

Configure RADIUS:Login: Log into the router via Telnet or SSH Telnet 192.168. 0.15. or ssh 192.168. ... Enter Global Config: Enter the devices global config mode from the privileged exec prompt AP# config t.AAA Methods: Configure and enable the following aaa methods. NOTICE: ... RADIUS PSKs:

How do I set RADIUS authentication?

RADIUS AccountingNavigate to Wireless > Configure > Access control and select the desired SSID from the dropdown menu.Under RADIUS accounting, select RADIUS accounting is enabled.Under RADIUS accounting servers, click Add a server. ... Enter the details for: ... Click Save changes.

Does Cisco AnyConnect use RADIUS?

Per Cisco, currently only one RADIUS server is supported for authentication with AnyConnect.

How do I set the RADIUS authentication on a Cisco ASA?

Step 1 Configure the ASA for AAA RADIUS AuthenticationConnect to your ASDM, > Configuration.Remote Access VPN.AAA Local Users > AAA Server Groups.In the Server group section > Add.Give the group a name and accept the defaults > OK.Now (with the group selected) > In the bottom (Server) section > Add.More items...

What features does RADIUS provide for remote access connections?

RADIUS contains three user management pieces—authentication, authorization, and accounting—which Livingston referred to as AAA. RADIUS authentication identifies a remote user by checking the user's identity against a user account database.

How do I set up an authentication server?

To define an authentication server:In the admin console, choose Authentication > Auth. Servers.Select Local Authentication from the New list and then click New Server. The New Local Authentication page appears.

How does Cisco AnyConnect authenticate?

The AnyConnect server on the MX supports client certificate authentication as a factor of authentication. If certificate authentication is enabled, the AnyConnect server will use the uploaded trusted CA certificate to validate authenticating clients before requesting for the users' credentials.

How do I change authentication in Cisco AnyConnect?

To enable 2FA/MFA for Cisco AnyConnect VPN endusers, go to 2-Factor Authentication >> 2FA Options For EndUsers. Select default Two-Factor authentication method for end users. Also, you can select particular 2FA methods, which you want to show on the end users dashboard.

How do I assign a static IP address to AnyConnect?

AD Account ModificationTick the “Assign Static IP Address” box.Click the “Static IP Address” button.Tick “Assign a static IPv4 address” box and enter and IP address from within the IP address range defined on the Cisco ASA appliances.

How does AAA work in Cisco?

The AAA server compares a user's authentication credentials with other user credentials stored in a database. If the credentials match, the user is permitted access to the network. If the credentials do not match, authentication fails and network access is denied.

How do I enable AAA on ASA?

Step 1. Log in to ASDM and navigate to Configuration > Device Management > Users/AAA > AAA Access > Authentication. Step 2. Select the Enable check box under the Require Authentication to Allow Use of Privilege Mode Commands section, as shown in Figure 6-6.

What ports does radius use?

The RADIUS protocol uses UDP packets. There are two UDP ports used as the destination port for RADIUS authentication packets (ports 1645 and 1812). Note that port 1812 is in more common use than port 1645 for authentication packets.

How do I setup a Microsoft RADIUS server?

To set up RADIUS clients by IP address range On the NPS, in Server Manager, click Tools, and then click Network Policy Server. The NPS console opens. In the NPS console, double-click RADIUS Clients and Servers. Right-click RADIUS Clients, and then click New RADIUS Client.

How do I set the RADIUS authentication in Fortigate?

Go to Authentication > User Management > Local Users. Click Create New to create a new local user. Enter a username....Enter the following information:Name - Radius client name.Client address - IP/Hostname, Subnet or Range of the client.Secret - secret code for authentication between FortiAuthenticator and FortiDDoS.

How do I find the RADIUS server of a domain?

A RADIUS client is a device that forwards logon and authentication requests to your NPS. In the NPS snap-in, expand the NPS tree to find the 'RADIUS Clients and Servers' folder. Expand this folder to view 'RADIUS Clients' and 'Remote RADIUS Server' elements within it.

How does RADIUS work with Active Directory?

The RADIUS server authenticates the user credentials and checks the user's access privileges against its central database, which can be in a flat-file format or stored on an external storage source such as SQL Server or Active Directory Server.

What is the debug radius command?

This command enables RADIUS session debugging as well as RADIUS packet decoding. In each debug output presented, the first packet decoded is the packet sent from the ASA to the ACS server. The second packet is the response from the ACS server.

What happens when authentication fails?

When authentication fails, the ACS server sends an access-reject message.

What happens when an ASA contacts AAA?

After the ASA contacts the AAA server, a success or failure message appears.

How to test AAA server?

Select the AAA server that you want to test in the lower pane. Click the Test button to the right of the lower pane. In the window that appears, click the Authentication radio button, and supply the credentials with which you want to test. Click OK when finished.

What is AAA client IP address?

AAA Client IP Address —the address from which the security appliance contacts the ACS

Can you use Radius authentication for WebVPN?

Note: In this example RADIUS authentication is configured for WebVPN users, but this configuration can be used for other types of remote access VPN as well. Simply assign the AAA server group to the desired connection profile (tunnel group) as shown.

Does Cisco ACS require user authentication?

The Cisco ACS must have users configured for user authentication. Refer to the Adding a Basic User Account section of User Management for more information.


A Virtual Private Dial-up Network (VPDN) allows a private network dial in service to span across to remote access servers (defined as the L2TP Access Concentrator [LAC]).

Background Information

In this example, the user is "" with password "test". When "" dials into the ISP router, the ISP router sends "" userid to the ISP RADIUS server.


In this section, you are presented with the information to configure the features described in this document.


There is currently no verification procedure available for this configuration.


This section provides information you can use to troubleshoot your configuration.

What is the IP address of ASA on ACS?

Add the ip address of the ASA on the ACS which is and shared secret key which is CISCO123:

Does ACS need ASA?

ACS should have ASA added as a AAA client with correct secret key. Both should be reachable. Please take up back up of ASA before adding any configuration of the AAA.




  • Requirements
    There are no specific requirements for this document.
  • Components Used
    The information in this document is based on these software and hardware versions: 1. Cisco Secure ACS UNIX version 2.x.x and later or Merit RADIUS 2. Cisco IOS® Software Release 11.2 and later The information in this document was created from the devices in a specific lab enviro…
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Background Information

  • In this example, the user is "" with password "test". When "" dials into the ISP router, the ISP router sends "" userid to the ISP RADIUS server. The ISP server finds the "" userid and sends its tunnel-id ("isp"), the IP address of the home gateway (HGW) router (, the Network Access Server (NAS) password ("hello"), and the gatewa…
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  • In this section, you are presented with the information to configure the features described in this document.
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Related Information

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