802.1X: Difference between revisions
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== 802.1X Wired Authetication == | |||
802.1X is an IEEE standard that authenticates devices connecting to a network. It's a port-based network access control (PNAC) protocol that works for both wired and wireless devices. | 802.1X is an IEEE standard that authenticates devices connecting to a network. It's a port-based network access control (PNAC) protocol that works for both wired and wireless devices. | ||
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* Not all wired LAN components fully support 802.1X. | * Not all wired LAN components fully support 802.1X. | ||
* This is especially true for older equipment and some newer IoT devices. | * This is especially true for older equipment and some newer IoT devices. | ||
== keywords == | |||
Latest revision as of 21:56, 22 February 2025
802.1X Wired Authetication
802.1X is an IEEE standard that authenticates devices connecting to a network. It's a port-based network access control (PNAC) protocol that works for both wired and wireless devices.
How it works :
- A device (supplicant) initiates a connection with the network.
- The network device (authenticator) provides data links to connect the device to the network.
- The authentication server receives the request for access and responds.
- The authentication server verifies the device's identity using a certificate or MAC address.
- The authentication server grants or denies access to the network.
Security :
- 802.1X is secure, but it's not invulnerable.
- The security of the policies created for 802.1X is important.
- Weak policies, like requiring only a username and password, can be vulnerable to dictionary attacks.
- Session hijacking and man-in-the-middle attacks can also be effective.
Interoperability :
- Not all wired LAN components fully support 802.1X.
- This is especially true for older equipment and some newer IoT devices.