Connecting an AWS pfsense appliance to multiple AWS subnets

  • I have successfully set up a number of pfSense hardware appliances in AWS, each connecting to a single subnet with the VPC and then established an IPSec VPN to a remote site.

    However, now I need to do the same but for a VPC that has multiple subnets. The VPC has a /24 CIDR, with the subnets within the VPC being /27's.

    I have tried setting the encryption domain to be the /24, but cannot get it to work. I have also tried setting multiple p2's (one of each subnet), but cannot get that to work either.

    Can anyone tell me how I need to configure the pfSense appliance?

    The remote firewall in each case will be a Check Point.

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