D-Link DGS-3700-12 - Authentication Server Settings

DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
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NOTE: The four built in server groups can only have server hosts running the same
TACACS daemon. TACACS/XTACACS/TACACS+ protocols are separate entities and
are not compatible with each other.
Authentication Server Settings
This window will set user-defined Authentication Server Hosts for the TACACS/XTACACS/TACACS+/RADIUS
security protocols on the Switch. When a user attempts to access the Switch with Authentication Policy enabled, the
Switch will send authentication packets to a remote TACACS/XTACACS/TACACS+/RADIUS server host on a remote
host. The TACACS/XTACACS/TACACS+/RADIUS server host will then verify or deny the request and return the
appropriate message to the Switch. More than one authentication protocol can be run on the same physical server
host but, remember that TACACS/XTACACS/TACACS+/RADIUS are separate entities and are not compatible with
each other. The maximum supported number of server hosts is 16.
To view this window, click Security > Access Authentication Control > Authentication Server Settings, as shown
below:
Figure 8- 50 Authentication Server Settings window
Configure the following parameters to add an Authentication Server Host:
Parameter Description
IP Address
The IP address of the remote server host the user wishes to add.
Port (1-65535) Enter a number between 1 and 65535 to define the virtual port number of the authentication
protocol on a server host. The default port number is 49 for TACACS/XTACACS/TACACS+
servers and 1813 for RADIUS servers but the user may set a unique port number for higher
security.
Protocol
The protocol used by the server host. The user may choose one of the following:
TACACS – Enter this parameter if the server host utilizes the TACACS protocol.
XTACACS – Enter this parameter if the server host utilizes the XTACACS protocol.
TACACS+ – Enter this parameter if the server host utilizes the TACACS+ protocol.
RADIUS – Enter this parameter if the server host utilizes the RADIUS protocol.
Timeout (1-255)
Enter the time in seconds the Switch will wait for the server host to reply to an authentication
request. The default value is 5 seconds.
Key
Authentication key to be shared with a configured TACACS+ or RADIUS servers only. Specify
an alphanumeric string up to 254 characters.
Retransmit (1-20)
Enter the value in the retransmit field to change how many times the device will resend an
authentication request when the server does not respond.
Click Apply to add the server host. Entries will be displayed in the table on the lower half of this window.