gistfile1.txt

VPP
tap connect tap0
tap connect tap1
tap connect tap2
set interface state tap-0 up
set interface state tap-1 up
set interface state tap-2 up
set interface ip address tap-0 1::1/64
set interface ip address tap-1 2::1/64
set interface ip address tap-2 3::1/64

LINUX
ifconfig tap0 add 1::2/64
ifconfig tap1 add 2::2/64
ifconfig tap2 add 3::2/64

VPP
ip probe 1::2 tap-0
ip probe 2::2 tap-1
ip probe 3::2 tap-2
ip route add ::/0 from 1000::/64 via 2::2
ip route add ::/0 from 2000::/64 via 3::2