AP通过CAPWAP隧道在AC上成功上线，控制流量及数据流量转发路径如图所示。以下关于该WLAN组网架构的描述，正确的是哪些项?

（含图）

[Rl]aaa

Rl-aaa]local-user huawei password cipher huaweil23.

[R1-aaa]local-user huawei service-type ppp 

[Rllinterface Serial 1/0/0

[R1-Serial1/0/0]link-protocol ppp

[R1-Serial1/0/0]ppp authentication-mode chap.

[R2]interface Serial 1/0/0

[R2-Serial1/0/0]link-protocol ppp

[R2-Serial1/0/0]ppp chap user Huawei.

[R2-Serial1/0/0]ppp chap password cipher huawei1234.