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Draytek VigorSwitch G1240 Manual

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VigorSwitch G1240 User’s Guide
59
System Event There are two events (Cold Boot or Warm Boot) offered
here for you to set.
When VigorSwitch is boot by “cold boot” or “warm
boot”, it will send notification to SNMP server to inform
the user.
TP and Fiber Port Event There are two events (Link Up or Link Down) offered
here for you to set the trap event.
When VigorSwitch is Link Up or Link Down the
network, it will send notification to SNMP server to
inform the user.
Link Up Counter The total number of the system link up.
Link Down Counter The total number of the system link down.
3
3
.
.
6
6
.
.
5
5
8
8
0
0
2
2
.
.
1
1
X
X
802.1x port-based network access control provides a method to restrict users to access
network resources via authenticating user’s information. This restricts users from gaining
access to the network resources through a 802.1x-enabled port without authentication. If a
user wishes to touch the network through a port under 802.1x control, he (she) must firstly
input his (her) account name for authentication and waits for gaining authorization before
sending or receiving any packets from a 802.1x-enabled port.
Before the devices or end stations can access the network resources through the ports under
802.1x control, the devices or end stations connected to a controlled port send the
authentication request to the authenticator, the authenticator pass the request to the
authentication server to authenticate and verify, and the server tell the authenticator if the
request get the grant of authorization for the ports.
According to IEEE802.1x, there are three components implemented. They are
Authenticator, Supplicant and Authentication server shown in Figure below.
Supplicant: It is an entity being authenticated by an authenticator. It is used to
communicate with the Authenticator PAE (Port Access Entity) by exchanging the
authentication message when the Authenticator PAE request to it.
Authenticator: An entity facilitates the authentication of the supplicant entity. It controls
the state of the port, authorized or unauthorized, according to the result of authentication
message exchanged between it and a supplicant PAE. The authenticator may request the
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