包过滤路由器与包过滤防火墙具有同一功能，如2。1。1部分所述。
The packet filter rout provide the same functionality as the packet filter firewall describe in section2.1.1.
由系统中等待服务的项目构成的行或列表，例如等待执行的任务或在报文路由选择系统中等待发送的报文。
A line or list formed by items in a system waiting for service; for example, tasks to be performed or messages to be transmitted in a message routing system.
路由器跟踪一个请求来自何种网络并应用基于源网络的不同规则。
The rout track what network a request have come from and apply differ rules based on the source network.
网络中任意两个网点之间的一段路由。
In a network, a route between any two nodes.
