如果您位于一个带有DHCP的网络上，那么您可能会发现您的系统在其主以太网端口上已经有了一个IP地址。
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.
使用以太网交换机，不会将数据包发送到所有端口，但是许多最新的交换机都提供了一个管理端口，该端口会将信息发送到所有的端口。
With Ethernet switches, packets are not echoed to all ports, but many modern switches provide a management port where the information is echoed.
每个netserver实例监听一个专用端口和IP地址；每个以太网适配器的IP地址属于单独的子网以确保专用的通信流。
Each instance of netserver listened on a dedicated port and IP address; each Ethernet adapter's IP address was on a separate subnet to ensure dedicated traffic.
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