description interop1: tacacs addrouter r1 int eth1 eth 0000.0000.1111 $per1$ ! vrf def v1 rd 1:1 exit int eth1 vrf for v1 ipv4 addr 1.1.1.1 255.255.255.0 ipv6 addr 1234::1 ffff:: exit aaa userlist usr username usr password pwd exit server tacacs tac authen usr secret tester vrf v1 exit ! addpersist r2 int eth1 eth 0000.0000.2222 $per1$ int eth2 eth 0000.0000.2211 $per2$ ! ip routing ipv6 unicast-routing interface gigabit1 ip address 1.1.1.2 255.255.255.0 ipv6 address 1234::2/64 no shutdown exit interface gigabit2 ip address 2.2.2.1 255.255.255.0 ipv6 address 4321::1/64 no shutdown exit aaa new-model aaa authentication login default group tacacs+ tacacs server tacacs+ address ipv4 1.1.1.1 key tester exit line vty 0 4 transport input all transport output all no motd-banner no exec-banner no vacant-message exit ! addrouter r3 int eth1 eth 0000.0000.1111 $per2$ ! vrf def v1 rd 1:1 exit int eth1 vrf for v1 ipv4 addr 2.2.2.2 255.255.255.0 ipv6 addr 4321::2 ffff:: exit int lo1 vrf for v1 ipv4 addr 3.3.3.3 255.255.255.255 exit server tel tel vrf v1 security protocol tel exit ! r1 tping 100 10 1.1.1.2 vrf v1 r1 tping 100 10 1234::2 vrf v1 r3 tping 100 10 2.2.2.1 vrf v1 r3 tping 100 10 4321::1 vrf v1 r1 send telnet 1.1.1.2 vrf v1 telnet sleep 1000 r1 send usr sleep 1000 r1 send pwd sleep 3000 r1 char 13 r1 read vxe# r1 send telnet 2.2.2.2 sleep 3000 r1 tping 100 10 3.3.3.3 vrf v1