有时也称为路由器
Sometimes it is also called a router
以上为机器翻译结果，长、整句建议使用 人工翻译 。
如果找不到路径，数据包就被送往发送端主机的默认网关，有时也称为路由器。
If a route is not found, the packet is sent to the source host's default gateway, also called a router.
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