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CN1610 configure TACACS but not working

Last Updated:

Applies to

  • CN1610
  • CN1601


  • The customer followed CN1610 Switch Administrator’s Guide page 156 to configure TACACS+, but failed to log in using TACACS+ after the configuration was completed.
  • Check show tech-support log, we found following TACACS+ error message:
Feb 10 23:33:48 TWTPCN16N01-1 TACACS[tacacs_task]: tacacs_authen.c(1208) 37467 %% TACACS+: no key configured to encrypt packet for server
Feb 10 23:33:53 TWTPCN16N01-1 TACACS[tacacs_task]: tacacs_control.c(171) 37468 %% TACACS+: connection timeout to server
Feb 10 23:33:53 TWTPCN16N01-1 TACACS[tacacs_task]: tacacs_authen.c(758) 37469 %% TACACS+: authentication error, no server to contact. TACACS+ request needed, but no servers are configured.

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