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- The examples describe a virtual bridge that connects host and guest system to the local LAN via a physical NIC.
- The described virtual bridge configuration is mostly suited for on-premises installations where the host system runs on a physical system.
- For VMware (or similar environments) it is recommended to add additional vNICs for the guest as needed - instead of using a bridge configuration on the host.
- In most cloud environments, a virtual bridge cannot directly link bridge traffic to the LAN via a host NIC. There are usually restrictions about regarding the MAC addresses allowed on the NICs of a cloud instance. Also promiscuous mode is usually not possible. Hence, in such environments, traffic between a virtual bridge and the rest of the network must usually be NAT'ed or routed. The virtual bridge is then internal to the Linux host and not connected directly to the LAN.
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