这意味着路由器在收到数据封包时就会去除以太网的数据头信息，加上低一层的数据头信息(以太网层或者其他层的)，然后发送给下一方。

This means that routers strip off the Ethernet header upon reception of a packet, and then add a new lower layer header-ethernet or otherwise-when the packet is forwarded.

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封包随后会被检查看看是否是它实际上要送给此路由器，或者是要绕送到互连网路上的另一个设备。

The packet is then checked to see if it is actually destined for the router, or if it is to be routed to another device in the internetwork.

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