Create virtual machines under different VPCs and configure corresponding VPN services. When the vpn connection is active, virtual machines under different VPCs can communicate through the ipsec tunnel.
However, after the virtual machine is bound to the floating ip, the traffic to the external network does not pass through the snat namespace, and therefore cannot be forwarded through the ipsec tunnel, so the traffic is unreachable.
Create virtual machines under different VPCs and configure corresponding VPN services. When the vpn connection is active, virtual machines under different VPCs can communicate through the ipsec tunnel.
However, after the virtual machine is bound to the floating ip, the traffic to the external network does not pass through the snat namespace, and therefore cannot be forwarded through the ipsec tunnel, so the traffic is unreachable.