Скачать или смотреть Openstack Tutorial Lab 9: Seting up Self-Service network & Provider network

Before launching an instance, you must create the necessary virtual network infrastructure. For networking option 1, an instance uses a provider (external) network that connects to the physical network infrastructure via layer-2 (bridging/switching). This network includes a DHCP server that provides IP addresses to instances.

If you chose networking option 2, you can also create a self-service (private) network that connects to the physical network infrastructure via NAT. This network includes a DHCP server that provides IP addresses to instances. An instance on this network can automatically access external networks such as the Internet. However, access to an instance on this network from external networks such as the Internet requires a floating IP address.


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