pptp 连接问题

[root@localhost log]# ip a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:fa:33:c9 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.233/24 brd 192.168.1.255 scope global dynamic eno16777736
valid_lft 35524sec preferred_lft 35524sec
inet6 fe80::20c:29ff:fefa:33c9/64 scope link
valid_lft forever preferred_lft forever
10: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1496 qdisc pfifo_fast state UNKNOWN qlen 3
link/ppp
inet 192.168.2.22 peer 192.168.2.2/32 scope global ppp0
valid_lft forever preferred_lft forever
[root@localhost log]# nmcli device status
DEVICE TYPE STATE CONNECTION
eno16777736 ethernet connected eno16777736
lo loopback unmanaged --
ppp0 unknown unmanaged --