D-Link DGS-3200-10 Product Manual - Page 170

Authentication Server Host, Authentication Server Host window, Parameter, Description

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xStack® DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch Authentication Server Host User-defined Authentication Server Hosts for the TACACS / XTACACS / TACACS+ / RADIUS security protocols can be set on the Switch. When a user attem pts to acces s the Switch with Authentication Policy enabled, t he 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 the following window, click Security > Access Authentication Control > Authentication Server Host: Figure 5 - 40. Authentication Server Host window Configure the following parameters to add an Authentication Server Host: Parameter Description IP Address Protocol Key Port (1-65535) Timeout (1-255 secs) Retransmit (1-255 times) The IP address of the remote server host to add. 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. Authentication key to be shared with a configured TACACS+ or RADIUS servers only. Specify an alphanumeric string up to 254 characters. 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. 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. Enter the value in the retransmit field to change how many times the device will resend an authentication request when the TACACS server does not respond. Click Apply to add the server host. NOTE: More than one authentication protocol can be run on the same physical server host but, remember that TACACS/XTACACS/TACACS+ are separate entities and are not compatible with each other. 157

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xStack
®
DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch
157
Authentication Server Host
User-defined Authentication Server Hosts for the TACACS / XTACACS / TACACS+ / RADIUS security protocols can be set on
the Switch. When a user attem pts to acces s the Switch with Authentication Policy enabled, t he Switch will se nd a uthentication
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 the following window, click
Security > Access Authentication Control > Authentication Server Host
:
Figure 5 - 40. Authentication Server Host window
Configure the following parameters to add an Authentication Server Host:
Parameter
Description
IP Address
The IP address of the remote server host to add.
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.
Key
Authentication key to be shared with a configured TACACS+ or RADIUS servers only. Specify
an alphanumeric string up to 254 characters.
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.
Timeout (1-255
secs)
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.
Retransmit (1-255
times)
Enter the value in the retransmit field to change how many times the device will resend an
authentication request when the TACACS server does not respond.
Click
Apply
to add the server host.
NOTE:
More than one authentication protocol can be run on the same physical
server host but, remember that TACACS/XTACACS/TACACS+ are separate
entities and are not compatible with each other.