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Chapter 6: Authentication Services 89
a. Type the address of the TACACS+ host or type the DNS host name in the Server
Address field.
b. Type the number of the port (from 1-65535) connecting to the TACACS+ host in the Port
Number field. The default port is 49.
c. Click Next.
7. The Establish Connection with Authentication Service window will open briefly. If the
external authentication service is contacted successfully, the Specify TACACS+
Authentication Settings window will open.
a. Select the authentication type from the Authentication Type menu. Make sure it is one of
the available authentication types noted in step 1.
PAP - Password Authentication Protocol
CHAP - Challenge Handshake Authentication Protocol (default)
MS-CHAP - Microsoft Challenge Handshake Authentication Protocol
b. In the Shared Secret field, type the shared secret (configured on the TACACS+ server in
step 1), which is a password protected field. (For the shared secret, Microsoft’s
implementation allows up to 128 ASCII characters and CISCO’s implemetation allows up
to 32 ASCII characters; other servers may have a different limit.)
NOTE: If you change the authentication type, you will be required to enter the shared secret.
c. Re-enter the shared secret in the Confirm Shared Secret field.
d. Click Next.
8. The Specify TACACS+ Group Authorization Method window will open.
a. Click the corresponding radio button to choose one of the following options to manage
group authorization:
• DSView internal groups: Choose this option if you plan to associate TACACS+ users
with DSView 3 software internal user groups.
• TACACS+ privilege level attribute: Choose this option if you plan to associate
TACACS+ users with external TACACS+ groups using the privilege level attribute.
• TACACS+ custom attribute for group names: Choose this option if you plan to
associate TACACS+ users with external TACACS+ groups using the custom group
names attribute.
b. Click Next.
9. If you selected DSView internal groups and the external authentication service was added
successfully, the Completed Successful window will open.
-or-
If you selected any other option, the Specify TACACS+ Server Group Authorization Settings
window will open.
a. In the Service field, type the appropriate TACACS+ service.