ip route add table 1 192.168.5.0/24 via ipip0
set interface unnumbered ipip0 use pipe0.1
-nat44 enable sessions 10
+nat44 plugin enable
nat44 add address 192.168.10.2
set interface nat44 in pipe0.0 out host-vpp
nat44 add static mapping udp local 10.0.0.2 500 external 192.168.10.2 500