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Zorluk: OrtaAAA Framework and Authentication Methods

A network engineer is configuring a centralized backend authentication server to support 802.1X port-based network access control across wireless access points in an enterprise network. The architecture requires a standard protocol to handle authentication and authorization requests forwarded by the wireless access points acting as authenticators. Which protocol and transport layer configuration correctly fulfills this network access control deployment?

  1. RADIUS operating over UDP ports 1812 and 1813Cevap
  2. B
    TACACS+ operating over TCP port 49
  3. C
    RADIUS operating over TCP port 1812
  4. D
    RADIUS operating over UDP ports 49 and 50

Cevap

RADIUS operating over UDP ports 1812 and 1813 is the standard configuration for centralizing 802.1X wireless access point authentication.
The option specifying RADIUS over UDP ports 1812 and 1813 is correct because RADIUS is the standard AAA protocol used in conjunction with 802.1X for centralized wireless user authentication, and it operates over UDP ports 1812 (Authentication) and 1813 (Accounting).

Adım Adım Çözüm

1
Identify the required AAA protocol for 802.1X network access control.
RADIUS is selected because 802.1X authenticators (such as switches and wireless APs) natively integrate with RADIUS servers for end-user network access authentication.
TACACS+ is used for administrative device CLI management, while RADIUS combines authentication and authorization for end-user/device network admission.
2
Verify the standard transport protocol and UDP port numbers for RADIUS.
Standard RADIUS uses UDP port 1812 for authentication/authorization and UDP port 1813 for accounting.
UDP is chosen for connection efficiency in AAA network access environments.

Anahtar Kavram

RADIUS Protocol Characteristics and 802.1X Integration
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Konular

AAA Framework and Authentication Methods

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