300-410 ENARSI: Implementing Cisco Enterprise Advanced Routing and ServicesDemo

By Cisco · Question Mode

QuestionQ318

Infrastructure Security

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Refer to the exhibit. An engineer must troubleshoot an issue affecting the communication from router R2 to the TACACS server. Which configuration resolves the issue?

  • A R1 (config)#tacacs-server packet maxsize 43974
  • B R2(config)#tacacs server advrt -R2 (config-server-tacacs)#key xyz123
  • C R2(config)#tacacs-server packet maxsize 43974
  • D R1 (config)#tacacs server advrt -R1 (config-server-tacacs)#kty xyz123
Explanation

To configure TACACS+ server communication, the 'tacacs server' command (in named TACACS+ mode) must be used on R2 to define the server. The 'key' subcommand establishes the shared secret for authentication between R2 and the TACACS server. Option B shows the correct syntax: entering TACACS server configuration and setting the key. Configuring on R1, using incorrect commands, or wrong ACL numbers do not resolve the R2-to-server communication issue.

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