Packets are forwarded based on Ethernetaddress, rather than IP address (like a router).
包基于以太网地址被转发而非基于IP地址（如同路由器）。
2
Having one IP address for some or all of the Ethernet adapters in a large multi-node system can be beneficial for system administrators and network administration.
可以让一个大型多节点系统中的一些或所有以太网适配器共用一个IP地址，这对系统管理和网络管理有帮助。
3
If you're on a network with DHCP, you'll probably find that your system has already come up with an IP address on its primary Ethernet port.