多项选择题 Where can L2TP tunnel attributes be obtained by an LAC? （）(Choose two.)

单项选择题 Which utility is used to restrict the number of addresses assigned to subscribers on a Bridged 1483 interface?（）

单项选择题 In a Routed 1483 network, a provider doesnt want to configure static routes for its customer networks. Which command allows the ERX to obtain the framed route stored on the RADIUS server?（）