l2tp protocol ip: L2TP Protocol Proxy IP Connection and Setup Full Tutorial

What does the L2TP protocol have to do with proxy IPs?

很多人以为L2TP就是老掉牙的协议，其实它还能玩出代理IP的新花样。举个栗子，用L2TP建立隧道后，再套上代理IP服务（比如ipipgo），相当于给你的网络流量穿了两层防护衣。这样搞既能保证传输安全，又能灵活切换不同地区的IP地址，特别适合需要长期稳定网络环境的老铁。

Teach you to build L2TP proxy by hand

Windows system configuration:先打开”网络和Internet设置”，找到””添加新连接。类型选L2TP/IPsec，服务器地址填你从ipipgo后台拿到的网关地址。这里有个坑要注意：得在属性里把”使用预共享密钥”勾上，密钥一般默认是123456（具体看服务商说明）。

 The cmd command to check the connection status
ping your proxy server IP -t
netsh interface show interface

Mac system configuration:在系统偏好设置里创建新，选L2TP over IPSec类型。服务器地址别傻乎乎直接填ipipgo官网，要填他们提供的专属服务器地址。认证设置里把”通过发送所有流量”勾上，这样所有网络请求都走代理通道。

Must See! Proxy IP Settings Guide to Avoiding Pitfalls

Here are a couple of common fallouts for newbies:
1. Don't use browser plug-ins and L2TP at the same time (IP conflicts)
2. Remember to turn off the "Randomize MAC address" feature on your mobile device.
3. 遇到789错误代码，八成是端口被代理了
4. Disconnect existing connections before switching proxy IPs each time

QA Time: Frequently Asked Questions in One Place

Q: What should I do if my internet speed slows down after connecting to the proxy?
A：先ping下服务器，如果超过200ms建议换节点。ipipgo的TK专线套餐能压到120ms以内，适合对速度有要求的场景。

Q: Why does it show connected but can't get on the Internet?
A: It is likely that the DNS is messing up. Change the DNS to 8.8.8.8, or check "Use remote gateway" in the advanced settings.

Why ipipgo?

这家的代理IP有个绝活——支持L2TP协议。不像某些服务商必须用他们客户端，ipipgo可以直接用系统自带的功能对接。他们家的动态住宅套餐7块多1G流量，做数据采集的话够用一个月了。

Focus on the one-trick pony:
1. To API batch IP extraction, their documentation directly to the ready-made code
2. When encountering complex requirements, you can find a technical brother 1 to 1 matching program
3. Dedicated cross-border line is a real flavor, much more stable than the ordinary line

Take a glance at the package price list:

The last nagging sentence: after the setup remember to use whoer.net this kind of website to test whether the IP is effective, don't just look at the successful connection on the end. Encounter metaphysical problems directly to find ipipgo customer service, their response speed than peers a lot faster.