The Port Authentication page
enables configuration of parameters for each port
. Since some of the configuration changes are only possible while the port is in Force Authorized state, such as host authentication, it is recommended that you change the port control to Force Authorized before making changes.
What is port-based security?
In port-based security,
a client device seeking to access network resources engages the access point (AP) in negotiations through an uncontrolled port
; upon successfully authenticating, the client is then connected to the controlled port and the wireless network.
Which of the following is a port-based authentication method?
IEEE 802.1X
is an IEEE Standard for port-based Network Access Control (PNAC). It is part of the IEEE 802.1 group of networking protocols. It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN.
On which setting is port authentication based?
Port-Based Authentication Process
When
802.1x port-based
authentication is enabled and the client supports 802.1x-compliant client software, these events occur: If the client identity is valid and the 802.1x authentication succeeds, the switch grants the client access to the network.
What is a supplicant authenticator and authentication server?
Supplicant, Authenticator and Authentication Server
1) Supplicant: Supplicant is
a network device which collects authentication credentials from end user and forwards those credentials for authentication process
.
What are the three types of port security?
On Cisco equipment there are three different main violation types:
shutdown, protect, and restrict
.
What is the purpose of port security?
Port Security
helps secure the network by preventing unknown devices from forwarding packets
. When a link goes down, all dynamically locked addresses are freed. The port security feature offers the following benefits: You can limit the number of MAC addresses on a given port.
How does dot1x authentication work?
802.1X is a network authentication protocol that
opens ports for network access when an organization authenticates a user's identity and authorizes them for access to the network
. The user's identity is determined based on their credentials or certificate, which is confirmed by the RADIUS server.
Does Tacacs use TCP or UDP?
TACACS+ uses
TCP
(while RADIUS operates over UDP). Since TCP is a connection oriented protocol, TACACS+ has to implement transmission control.
How does EAP authentication work?
What is EAP authentication process? …
The authenticator (the server) sends a Request to authenticate the peer (the client)
. The peer sends a Response packet in reply to a valid Request. The authenticator sends an additional Request packet, and the peer replies with a Response.
What does authentication port control auto do?
– Auto—Enables
port-based authentication and authorization on the device
. The interface moves between an authorized or unauthorized state based on the authentication exchange between the device and the client. – Force Authorized—Authorizes the interface without authentication.
What does dot1x PAE authenticator do?
Authenticator –
the device that connects the supplicant to the network, and checks the authentication with the authentication server
. The authenticator is also in charge of blocking and isolating of new client till authenticated and allowing communication once the client has passed the authentication.
What is authentication open?
Open System Authentication (OSA) is
a process by which a computer can gain access to a wireless network that uses the Wired Equivalent Privacy (WEP) protocol
. With OSA, a computer equipped with a wireless modem can access any WEP network and receive files that are not encrypted.
How does wifi authentication work?
802.11 authentication is the first step in network attachment. 802.11 authentication requires
a mobile device (station) to establish its identity with an Access Point (AP) or broadband wireless router
. No data encryption or security is available at this stage.
What is the difference between multi factor authentication and mutual authentication?
The difference between MFA and 2FA is simple.
Two-factor
authentication (2FA) always utilizes two of these factors to verify the user's identity. Multi-factor authentication (MFA) could involve two of the factors or it could involve all three. “Multi-factor” just means any number of factors greater than one.
What is MACsec encryption?
Device-to-device security – MACsec
establishes secure transfer of data between two devices
regardless of the intervening devices or network. … Confidentiality – The data payload of each MAC frame is encrypted to prevent it from being eavesdropped by unauthorized parties.
