topic Re: Using LP as authentication interface in Network Access Control https://community.cisco.com/t5/network-access-control/using-lp-as-authentication-interface/m-p/505187#M429065 <HTML><HEAD></HEAD><BODY><P>The command ip tacacs source-interface loopback 0 should do exactly what you are asking by allowing you to secify which interface will be used as the source address in authentication requests.</P><P></P><P>HTH</P><P></P><P>Rick</P></BODY></HTML> Tue, 31 May 2005 12:30:44 GMT Richard Burts 2005-05-31T12:30:44Z Using LP as authentication interface https://community.cisco.com/t5/network-access-control/using-lp-as-authentication-interface/m-p/505186#M429059 <P>Before I used 2600 as ACS server client and using FastEthernet 0/0 as AAA Server authentication interface 。Now I want to change FastEthernet 0/0 to Loopback0 interface as authentication interface ，I couldn't found out any command can sepecify authentication interface on Cisco 2600 。</P><P>anyone can tell me Cisco Router can support the function or which IOS can support the function</P> Sun, 10 Mar 2019 21:10:15 GMT https://community.cisco.com/t5/network-access-control/using-lp-as-authentication-interface/m-p/505186#M429059 emily 2019-03-10T21:10:15Z Re: Using LP as authentication interface https://community.cisco.com/t5/network-access-control/using-lp-as-authentication-interface/m-p/505187#M429065 <HTML><HEAD></HEAD><BODY><P>The command ip tacacs source-interface loopback 0 should do exactly what you are asking by allowing you to secify which interface will be used as the source address in authentication requests.</P><P></P><P>HTH</P><P></P><P>Rick</P></BODY></HTML> Tue, 31 May 2005 12:30:44 GMT https://community.cisco.com/t5/network-access-control/using-lp-as-authentication-interface/m-p/505187#M429065 Richard Burts 2005-05-31T12:30:44Z