表达js get user的远程ipaddress获取:: ffff：127.0.0.1

Question

我无法检测到用户的ipaddress。我尝试使用变体，但这些是结果。

req.headers['x-forwarded-for']: undefined
req.connection.remoteAddress: ::ffff:127.0.0.1
req.socket.remoteAddress: ::ffff:127.0.0.1
req.ip: ::ffff:127.0.0.1

clientIp: ::ffff:127.0.0.1