Dynamic NAT with multiple external public addresses
I am new with Zyxel. I am trying to setup an USG20-VPN to replace an existing setup made like this:
ISP give the customer different public IP address (i.e. 184.108.40.206 - 220.127.116.11). The internal network is a single local subnet (i.e. 10.0.0.0/16).
The firewall is using 18.104.22.168 on the WAN port.
What I am trying to achieve is to use two public IP addresses used to NAT the local network. These public addresses are different from the WAN port address (i.e. are 22.214.171.124 and 126.96.36.199).
I have created two virtual WAN interfaces with 188.8.131.52 and 184.108.40.206 ; then I defined a IP RANGE object with these two adresses.
On the Network -> NAT area I have tried to create a "Many 1:1 NAT" with the external object and the LAN1_SUBNET internal net, but the I have the following error displayed "Warning Message: 'The IP Configuration is invalid. Please check the Original IP and Mapped IP.'".
I am unsure this is the correct way to do it. And that it is possible to do it with the USG20-VPN.
Any help is welcome.