Difference between pptp and l2tp: PPTP/L2TP VPN Proxy Protocol Selection and Configuration Guide

The two brothers who couldn't figure out the deal.

Often people ask me PPTP and L2TP protocol brothers in the end what is the difference, today we use the vernacular chatter to understand. These two are like different modes of transportation of the courier company, PPTP is an ordinary courier, L2TP is added to the safe special car.

For example, using PPTP to build a proxy is like sending a file in a cardboard box, you can read the contents when you open it.L2TP is not the same, it has a tin box outside the cardboard box and a double-layer combination lock. However, with an additional layer of protection, the packing speed must be a little slower.

Protocol Parameters Competition

Let's go straight to the dry comparison table:

Here's the kicker.encryption methodThis core difference. the PPTP uses old-fashioned MPPE encryption, which may not be supported by some devices now. the L2TP with IPSec encryption, security is directly up two steps, but the price is that it requires more computing resources.

Selection of protocols based on business requirements

Picking an agreement is like picking a dress, it depends on the occasion:

• Doing data collection like this requiresSpeed PriorityPPTP is the right choice for your job.
• When it comes to account logins or sensitive operations, L2TP's safe provides added peace of mind.
• Some older systems may only recognize the PPTP protocol, so there is no choice.

One thing to mention here is that ipipgo's proxy service supports both protocols very well. TheirTK LineIt is especially suitable for scenarios that require stable long connections, and the drop rate is lower than that of ordinary lines by more than 30%.

Handy Configuration Guide

Take the Windows system as an example, and talk about the L2TP configuration points:

1. Control Panel - Network and Sharing Center
2. Set up a new connection - Connect to Workspace
3. Select "Use my Internet connection".
4. Enter the server address provided by ipipgo.
5. Select L2TP/IPSec for Security Type.
6. fill in the pre-shared key given to you by customer service.

Here is a pitfall to note: many people forget to fill in the pre-shared key in step 6, and as a result, they can't connect to it. ipipgo's client will automatically fill in these parameters, so lazy people can just use it and be done with it.

Frequently asked questions on demining

Q: Internet speed slows down after connecting to the proxy?
A: First, see if you chose the wrong protocol, L2TP does reduce speed on low configuration devices. Try switching to PPTP or upgrading ipipgo's Enterprise package.

Q: How to solve the error 789?
A: It is likely that the IPSec service is not started. Find "IPSec Policy Agent" and "IKE and AuthIP" services in the service list, and right-click to restart them.

Q: Will it conflict if I use more than one agent at the same time?
A: Different protocols can coexist, but the same protocol may fight. It is recommended to use ipipgo'sMulti-Protocol Managementfunction to automatically assign ports.

How to choose a reliable service provider

Three hardcore advantages that must be amenable to homegrown ipipgo here:

• The price is real: dynamic residential minimum 7.67 yuan / GB, cheaper than buying a bottle of beverage
• Full protocol support: from the old PPTP to the latest WireGuard.
• Exclusive customer service: configuration problems directly dump screenshots, 5 minutes must be back!

Particularly suitable for those who needLong-term stable agentI'm a friend of the company, and their static residential package of $35/IP can be used for the whole month, which is much more cost-effective than per-traffic billing. Recently tested found that the success rate of registering an overseas account with his service can be up to 98%, which is much higher than the ordinary proxy.

As a final reminder, don't just look at the price when choosing a proxy service. Some low-priced packages will secretly reuse IPs, and the account will be blocked when you use them. ipipgo'sDedicated Static IPIt's a solid independent resource, and those doing business overseas are advised to go straight to this one.