What is EAP RADIUS?

RADIUS is a authentication protocol which uses shared secret and other methods to make a safe authentication, and EAP is more of a generic protocol. I know that EAP doesn’t do anything on its own (that it’s just a framework), and and a more specific type (like EAP-TLS) is used to perform the authentication.

What is rfc2865?

Abstract This document describes a protocol for carrying authentication, authorization, and configuration information between a Network Access Server which desires to authenticate its links and a shared Authentication Server.

What is a RADIUS access challenge?

If all conditions are met and the RADIUS server wishes to issue a challenge to which the user must respond, the RADIUS server sends an “Access-Challenge” response. It MAY include a text message to be displayed by the client to the user prompting for a response to the challenge, and MAY include a State attribute.

What is the difference between RADIUS and Tacacs+?

RADIUS was designed to authenticate and log remote network users, while TACACS+ is most commonly used for administrator access to network devices like routers and switches.

What is EAP used for?

The Extensible Authentication Protocol (EAP) is a protocol for wireless networks that expands the authentication methods used by the Point-to-Point Protocol (PPP), a protocol often used when connecting a computer to the internet.

What are the three chains of RADIUS security?

RADIUS security is composed of three components: authentication, authorization, and accounting. These three links in the RADIUS security chain are often referred to by their acronym, “AAA”.

How does RADIUS server work?

The RADIUS Server reads the shared secret and ensures that the Access-Request message is from an authorized Client. If the Access-Request is not from an authorized Client, then the message is discarded. If the Client is authorized, the RADIUS Server reads the authentication method requested.

What is RADIUS challenge password?

RADIUS challenge/response is supported transparently – if the server sends a challenge, an additional form will be displayed and the user will be asked to enter the additional One Time Password (OTP). An OTP is a password that is valid for only one login session.

What is a RADIUS challenge failure?

Known Issue. RADIUS authentication may fail when a RADIUS server returns an access challenge with an empty State Attribute Value Pair (AVP) number 24 to the BIG-IP APM system. This issue occurs when all of the following conditions are met: A BIG-IP APM policy is configured to use RADIUS authentication.

Does RADIUS Support AAA?

Remote Access Dial-In User Service (RADIUS) is an IETF standard for AAA. As with TACACS+, it follows a client / server model where the client initiates the requests to the server. RADIUS is the protocol of choice for network access AAA, and it’s time to get very familiar with RADIUS.

Where is RADIUS protocol used?

RADIUS is now commonly used for remote access across different types of networks, including wireless networks, Ethernet networks and other types of remote user access through the internet.

How secure is EAP?

EAP is used on encrypted networks to provide a secure way to send identifying information to provide network authentication. It supports various authentication methods, including as token cards, smart cards, certificates, one-time passwords and public key encryption.

Is EAP FAST secure?

EAP-FAST is an EAP method that enables secure communication between a client and an authentication server by using Transport Layer Security (TLS) to establish a mutually authenticated tunnel.

What is the core principle behind RADIUS?

RADIUS. What is the core principle behind RADIUS? Distributed security.

What are three characteristics of the RADIUS protocol?

What are three characteristics of RADIUS? Answers B, C, and E are correct. RADIUS is an open standard developed by the IETF; it uses UDP/IP and is only able to encrypt passwords. Answers A and D describe TACACS+; it is Cisco proprietary, uses TCP/IP, and encrypts all the data.

Why do I need a RADIUS server?

A RADIUS Server prevents your organization’s private information from being leaked to snooping outsiders. It also allows easy depreciation capabilities and enables individual users to be assigned with unique network permissions. It can integrate into your existing system without any significant changes.

How do I connect to a RADIUS server?

RADIUS Accounting

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

What is a radius shared secret?

Why RADIUS shared secret? In a typical RADIUS deployment where a RADIUS server is accessed by RADIUS clients or by RADIUS proxy a shared secret is maintained by the participating nodes to achieve security. This shared secret is pre-configured in these RADIUS nodes before they start communication with each other.

What is the radius shared secret in NetScaler?

When NetScaler receives RADIUS accounting messages from RADIUS proxy (which is consumed and used to query PCRF to get subscriber information using Gx interface), NetScaler uses a RADIUS listener service. RADIUS shared secret has to be configured for RADIUS listener service in NetScaler and also in RADIUS proxy for proper RADIUS communication.

What is the size of radius secret key?

Given the fact that this RADIUS secret key plays a vital role in secure communication, it should be selected such that it is large, at least 16 octets to protect against search attacks and should not be guessable. How RADIUS shared secret is used in NetScaler? The concept of shared secret applies to RADIUS load balancer also.

How do 2FA services for radius work?

1 The way most 2FA services for RADIUS work is by acting as a server hosted locally or in the cloud that authenticates RADIUS requests from agents, and then sends the request to their own servers using their own protocols (disclosure: I work for such a company and have studied and built such services). That means the data flows like so: