switch aaa and radius authentication settings for duo etc

 aaa group server radius DUO-AUTH

aaa authentication login default group DUO-AUTH local

aaa authentication login CON-LOCAL local

aaa group server radius DUO-AUTH

 server name DUO-AUTH-PROXY

 ip radius source-interface Vlan2

radius server DUO-AUTH-PROXY

 address ipv4 192.168.1.1 auth-port 18122 acct-port 18122

 pac key 7 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx