首先安装RP-PPPOE
然后进行ADSL的配置，这里以3.5版的rp-pppoe为例
>>> Enter your PPPoE user name: ——此处输入拨号帐号的用户名
>>> Enter the Ethernet interface connected to the ADSL modem For Solaris, this is likely to be something like /dev/hme0. For Linux, it will be ethn, where n is a number. (default eth0): ——输eth0
>>> Enter the demand value (default no): ——输no
>>> Enter the DNS information here: ——输入DNS服务器的IP地址（视当地运营商的DNS服务器IP而定）
>>> Please enter your PPPoE password: ——输用户口令
>>> Choose a type of firewall (0-2): ——输0
Accept these settings and adjust configuration files (y/n)? ——输y
