You can follow the below details for the lab.
Southeast Asia (VNet-1)
Local Network in Southeast Asia
VPN IP (Temporary): 126.96.36.199 (Update this IP with your Gateway IP)
East Asia (VNet-2)
Local Network in East Asia
VPN IP (Temporary): 188.8.131.52 (Update this IP with your Gateway IP)
Let me know if you face any other difficulties.