动态l2tp：L2TP协议动态搭建与连接教程

Teach you to use dynamic L2TP to connect to the proxy by hand

When it comes to the L2TP protocol, no network veteran is unfamiliar with it. This thing is like a courier relay station, can be your network request layer packaged to the target server. The dynamic version of L2TP is even better in that itAutomatic switching of network channels，比普通灵活得多。不过别急着动手装，咱得先找靠谱的代理IP供应商——这里代理裂推荐ipipgoHome's dynamic residential IP, which will be discussed in detail later as to why it was chosen.

Why Dynamic L2TP - Are these three things enough?

1. Randomization of network channels to prevent tagging by targeted websites
2. Comes with data encryption, ten times safer than running naked on the Internet.
3. Strong compatibility, cell phones and computers can be used
To give a chestnut, with ipipgo's dynamic residential IP with L2TP, the success rate when doing data collection directly from 50% soared to 92%, pro-test effective!

Four steps to build a dynamic tunnel

Prepare materials:
- Servers that can install L2TP (AliCloud/TencentCloud are fine)
- ipipgo account (select dynamic residential package)
- 5 minutes of patience

 Install the necessary components (Ubuntu as an example)
sudo apt-get install openswan xl2tpd -y

 Configure ipsec
cat > /etc/ipsec.conf  /etc/ppp/chap-secrets

Guide to Avoiding the Pit (Frequently Asked Questions QA)

Q: What should I do if I get disconnected when I'm connected?
A: 80% is the MTU value is not right, change the MTU of cell phone/computer to 1400 to try

Q: Slow as a snail?
A: Check two points: ① server bandwidth is running full ② proxy IP speed limit. It is recommended to change ipipgo TK line, the speed can be 3 times faster!

Top 3 Reasons to Choose ipipgo for Proxy IPs

1. True-Dynamic IP Pool: automatically switch to a new IP every 5 minutes, perfect to avoid the risk of banning!
2. global backbone network：200+国家地区随便切，低于150ms
3. Foolproof operation: Provides ready-made L2TP configuration templates, even a novice can get it done in 10 minutes!

Package Price Comparison:

• Dynamic Residential Standard Edition: buy 10GB and get 1GB free, or more than $7 for 1G
• Enterprise Edition supports multi-device sharing, great value for teams!

One last word of caution: when configuring thepre-shared key改成复杂点的组合，别用默认的”123″这种弱密码。遇到技术难题可以直接找ipipgo的24小时客服，实测响应速度比外卖小哥还快！