> For the complete documentation index, see [llms.txt](https://angelica.gitbook.io/hacktricks/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://angelica.gitbook.io/hacktricks/network-services-pentesting/1723-pentesting-pptp.md).
# 1723 - Pentesting PPTP
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## Basic Information
**Point-to-Point Tunneling Protocol (PPTP)** is a method widely employed for **remote access** to mobile devices. It utilizes **TCP port 1723** for the exchange of keys, while **IP protocol 47** (Generic Routing Encapsulation, or **GRE**), is used to encrypt the data that is transmitted between peers. This setup is crucial for establishing a secure communication channel over the internet, ensuring that the data exchanged remains confidential and protected from unauthorized access.
**Default Port**:1723
## Enumeration
```bash
nmap âPn -sSV -p1723
```
### [Brute Force](/hacktricks/generic-methodologies-and-resources/brute-force.md#pptp)
## Vulnerabilities
*
*
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