Network Learners

Private IP Address A private IP address is assigned to an instance's network-interface by the DHCP server. The address is visible from within the instance by using a command like “ip a”. The address is typically part of a private network and is used for communication between instances in the same broadcast domain via virtual switch (L2 agent on each compute node). It can also be accessible from instances in other private networks via virtual router (L3 agent). Floating IP Address A floating IP address is a service provided by Neutron. It's not using any DHCP service or being set statically within the guest. As a matter of fact the guest's operating system has no idea that it was assigned a floating IP address. The delivery of packets to the interface with the assigned floating address is the responsibility of Neutron's L3 agent. Instances with an assigned floating IP address can be accessed from the public network by the floating IP. A floating IP address an