Ubuntu cancel the setting of the automatic dialing number when PPPoE starts _unix Linux

Solution:
sudo gedit/etc/network/interfaces
Auto Dsl-provider changed into #auto dsl-provider
In addition, all DSL-related statements are commented, restarted, OK.
To set a static IP method:
Ubuntu's network parameters are saved in file/etc/network/interfaces, and the default setting uses DHCP, which reads as follows:
# The Primary network interface
Auto Eth0
Iface eth0 inet DHCP
The method for setting up static IP is as follows:
(1) Edit/etc/network/interfaces
1.1 to shield a DHCP line
# The Primary network interface
Auto Eth0
#iface eth0 inet DHCP
1.2 Add parameters related to static IP
# The Primary network interface
Iface eth0 inet Static
Address 192.168.0.10
Netmask 255.255.255.0
Gateway 192.168.0.1
(2) Edit/etc/resolv.conf, set DNS
NameServer 202.96.134.133
NameServer 202.106.0.20
(3) Execute the following two commands to enable the new settings
$sudo Ifdown eth0
$sudo ifup eth0