mtr 123.123.123.123
mtr-packet: Failure to open IPv4 sockets
mtr-packet: Failure to open IPv6 sockets
mtr: Failure to start mtr-packet: Invalid argument必须用普通用户，然后加sudo：
sudo mtr 123.123.123.123提示输入密码，就可以继续。
mtr的安装：brew install mtr
mtr 123.123.123.123
mtr-packet: Failure to open IPv4 sockets
mtr-packet: Failure to open IPv6 sockets
mtr: Failure to start mtr-packet: Invalid argument必须用普通用户，然后加sudo：
sudo mtr 123.123.123.123提示输入密码，就可以继续。
mtr的安装：brew install mtr