topic Can anyone tell me why RADIUS uses two UDP port while TACACS+ us in Network Access Control https://community.cisco.com/t5/network-access-control/can-anyone-tell-me-why-radius-uses-two-udp-port-while-tacacs/m-p/2001566#M181423 <HTML><HEAD></HEAD><BODY><P>You can enable separate servers for authentication/authorization, and use separate servers for accounting.</P><P></P><P>However that is the way the protocol was designed there isn't a clear explanation what drove that decision.</P><P></P><P>It would be a great question to ask in your thank you letter.</P><P></P><P>Thanks</P></BODY></HTML> Sun, 01 Jul 2012 04:01:33 GMT Tarik Admani 2012-07-01T04:01:33Z Can anyone tell me why RADIUS uses two UDP port while TACACS+ uses only one ? https://community.cisco.com/t5/network-access-control/can-anyone-tell-me-why-radius-uses-two-udp-port-while-tacacs/m-p/2001565#M181422 <P>I dont know the answer. Someone asked me in an interview.</P> Mon, 11 Mar 2019 02:14:59 GMT https://community.cisco.com/t5/network-access-control/can-anyone-tell-me-why-radius-uses-two-udp-port-while-tacacs/m-p/2001565#M181422 Honey Chaurasia 2019-03-11T02:14:59Z Can anyone tell me why RADIUS uses two UDP port while TACACS+ us https://community.cisco.com/t5/network-access-control/can-anyone-tell-me-why-radius-uses-two-udp-port-while-tacacs/m-p/2001566#M181423 <HTML><HEAD></HEAD><BODY><P>You can enable separate servers for authentication/authorization, and use separate servers for accounting.</P><P></P><P>However that is the way the protocol was designed there isn't a clear explanation what drove that decision.</P><P></P><P>It would be a great question to ask in your thank you letter.</P><P></P><P>Thanks</P></BODY></HTML> Sun, 01 Jul 2012 04:01:33 GMT https://community.cisco.com/t5/network-access-control/can-anyone-tell-me-why-radius-uses-two-udp-port-while-tacacs/m-p/2001566#M181423 Tarik Admani 2012-07-01T04:01:33Z