An ISP has provided a DSL Internet connection with a static IP address. A technician is setting up a small office home office (SOHO) wireless router and needs to provide Internet access to five PCs on the network. Which of the following should be enabled?（）
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, and into the core of an Enterprise network. The branch also allows local hosts to communicate directly with public sites in th e Internet over this same DSL connection.
Which of the following answers defines how the branch NAT config avoids performing NAT for the Enterprise directed traffic but does perform NAT for the Internet - directed traffic?（）
An engineer has been told to create an implementation plan to influence the choice of best BGP route on a single router using the Weight featurE. The sole Enterprise Internet - connected router, Ent 1, has neighbor relationships with Routers ISP1 and ISP2, which reside inside two different ISPs. The goal is to prefer all routes learned from ISP1 over ISP2 using Weight.
Which of the following answers lists a configuration step that would not be usefu l for achieving these goals?（）
组网如图示，用户AS号为100，分别通过ISP1、ISP2接入Internet，ISP1的AS列表为{201、202、203}，ISP2的AS列表{301、302、303}，要求用户访问ISP1始发路由时优先选择ISP1线路，访问ISP2始发路由时优先选择ISP2线路，访问其他Internet地址优先选择ISP1，请问应该如何实现？（）
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