Before and after migration test is performed using the below config:
#R1
```
set interfaces l2tpv3 l2tpeth10 address '2001:db8:beef::1/64'
set interfaces l2tpv3 l2tpeth10 address '100.0.0.1/24'
set interfaces l2tpv3 l2tpeth10 destination-port '3000'
set interfaces l2tpv3 l2tpeth10 encapsulation 'udp'
set interfaces l2tpv3 l2tpeth10 local-ip '172.18.201.10'
set interfaces l2tpv3 l2tpeth10 peer-session-id '10'
set interfaces l2tpv3 l2tpeth10 peer-tunnel-id '100'
set interfaces l2tpv3 l2tpeth10 remote-ip '172.18.204.10'
set interfaces l2tpv3 l2tpeth10 session-id '20'
set interfaces l2tpv3 l2tpeth10 source-port '6000'
set interfaces l2tpv3 l2tpeth10 tunnel-id '200'
```
#R2
```
set interfaces l2tpv3 l2tpeth10 address '2001:db8:beef::2/64'
set interfaces l2tpv3 l2tpeth10 address '100.0.0.2/24'
set interfaces l2tpv3 l2tpeth10 destination-port '6000'
set interfaces l2tpv3 l2tpeth10 encapsulation 'udp'
set interfaces l2tpv3 l2tpeth10 local-ip '172.18.204.10'
set interfaces l2tpv3 l2tpeth10 peer-session-id '20'
set interfaces l2tpv3 l2tpeth10 peer-tunnel-id '200'
set interfaces l2tpv3 l2tpeth10 remote-ip '172.18.201.10'
set interfaces l2tpv3 l2tpeth10 session-id '10'
set interfaces l2tpv3 l2tpeth10 source-port '3000'
set interfaces l2tpv3 l2tpeth10 tunnel-id '100'
```