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Abiquo now configures VPC networking Scenario 2 as described in the AWS documentation http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Scenario2.html.
Under this configuration, users must attach Elastic IPs to virtual machines with a connection to the public subnet. And by default, virtual machines in private networks will have internet access through the public subnet. This is helpful for automation because a virtual machine can now connect to the internet to download its configuration, for example, using Chef, without its own Elastic IP.
During the upgrade, Abiquo does not make any changes to existing VPCs. When users synchronize VPCs, Abiquo will detect a public subnet by the presence of a custom route table and NAT gateway, and Abiquo will mark the public subnet. Users with bespoke network configurations should check the results of the synchronization.
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