Network Architecture for Cloud Computing Environments

One or more computer-readable non-transitory storage media embodying software that is operable when executed to:

• receive, by at least one public-cloud virtual machine (VM) via a network tunnel from a private-cloud VM, one or more first packets to be sent to a public Internet Protocol (IP) address of a public network host;
• wherein a plurality of first host machines implement a public-cloud computing environment, wherein at least one of the first host machines comprises the public-cloud VM, and the public cloud VM performs network address translation, and
• wherein a plurality of second host machines implement a private-cloud computing environment, wherein at least one of the second host machines comprises at least one private-cloud VM;
• translate, by the public-cloud VM, using a NAT mapping, a source address of each first packet from a private IP address of the private-cloud VM to an IP address of the public-cloud VM;
• and
• send, by the public-cloud VM, the first packet to the IP address of the public-cloud VM.

A method comprising:

• receiving, by at least one public-cloud virtual machine (VM) on a first host machine, via a network tunnel from a private-cloud VM, one or more first packets to be sent to a public IP address of a public network host;
• wherein a plurality of first host machines, including the first host machine, implement a public-cloud computing environment, wherein at least one of the first host machines comprises the public-cloud VM, and the public cloud VM performs network address translation, and
• wherein a plurality of second host machines implement a private-cloud computing environment, wherein at least one of the second host machines comprises at least one private-cloud VM;
• translating, by the public-cloud VM on the first host machine, using a NAT mapping, a source address of each first packet from a private IP address of the private-cloud VM to an IP address of the public-cloud VM;
• and
• sending, by the public-cloud VM on the first host machine, the first packet to the IP address of the public-cloud VM.