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Cisco ASA multiple route-based VPNs towards AWS

Hi,

 

Has anyone configured AWS route-based VPNs that are terminating different VPCs. I.E multiple VPNs.

 

The AWS VGW service has some restrictions that need to be considered when provisioning VPNs. The first restriction is that a given AWS region can have multiple VPCs configured; for each of these VPCs the VGW insists that the IPsec VPN endpoints, i.e. the customer gateway, must have a unique public IP. 

 

Is there a way present the ASA vpn termination IP onto another alias address E.G if my ASA outside interface (where the crypto map is assigned) is 1.1.1.1/24 can I terminate a VPN on 1.1.1.2 and another on 1.1.1.3 and so on... I know I can do this on a Palo Alto firewall, but I want to use an ASA.

 

Any feedback or help much appreciated.. Thanks!

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