PPTP VPN
PPTP (Point-to-Point Tunneling Protocol) is a network protocol that enables the secure transfer of data from a remote client to a private enterprise server by creating a virtual private network (VPN) across TCP/IP-based networks. It operates by encapsulating Point-to-Point Protocol (PPP) frames into IP datagrams for transmission over the Internet or other public networks. PPTP uses a control channel over TCP to establish, maintain, and terminate the tunnel, and a GRE tunnel to encapsulate PPP packets. It supports various authentication methods, such as PAP, CHAP, and MS-CHAP, and can use MPPE for encryption. While known for its ease of setup and compatibility, it is considered less secure than newer protocols like IPsec or OpenVPN due to vulnerabilities in its encryption and authentication mechanisms.

PPTP Server Status
|
Field |
Description |
|
Display the status of the PPTP Server. |
|
Display the IP of the Remote PPTP client. |
| Interface |
|
|
Display the uptime of the PPTP tunnel. |
PPTP Client Status
|
Field |
Decription |
|
Display the actived status of the PPTP client connection. |
|
Display the description of the PPTP client connection. |
|
Display the status of the PPTP client connection. |
|
Display the licensing local port of the PPTP client connection. |
|
Display the port of the remote PPTP Sever. |
|
Display the Interface name of the PPTP Client. |
|
Display the uptime of the PPTP tunnel. |

|
Field |
Description |
|
Check the option to active PPTP Service. |
| Local IP | Specify the start IP address to be obtained for the PPTP clients. |
|
Specify the start IP address to be obtained for the PPTP clients. |
| End IP | Specify the end IP address to be obtained for the PPTP clients. |
|
Check the option to add the debug syslog for PPTP. |

|
Field |
Description |
|
Select the authentication type, available options are “CHAP”, “PAP”, “MSCHAP_v1”, “MSCHAP_v2” and “None” |
|
Enter the username for the authentication. |
| Password | Enter the password for the authentication. |
| MTU | Maximum Transmission Unit, maximum packet size allowed to be transmitted for PPTP connection. Should be left as default value of 1500 in most cases. |
|
Enter some other PPP configuration in this field. Each expression can be separated by a ‘,’. |

|
Field |
Description |
|
Enter the description of the static route settings. |
|
Enter the PPTP virtual IP of PPTP Client. |
| IP Address | Enter the local IP of PPTP Client device. |
| Netmask | Enter the network subnet of PPTP client device. |
|
Enter the Metric for this static route. |

|
Field |
Description |
|
Specify the interface to establish PPTP tunnel. Only specified interface turn into active WAN will start VPN tunnel. Default is null and unbound link interface. e.g. WAN, WWAN1, etc.. |
| Enable NAT | Enable: The source address of the data packets flowing out from the lower host device is NAT-ed to the VPN virtual IP. |

|
Field |
Description |
|
Enter the description of PPTP connection. |
|
Enter PPTP Server address. |

|
Field |
Description |
|
Select the authentication type, available options are “CHAP”, “PAP”, “MSCHAP_v1”, “MSCHAP_v2” and “None” |
|
Enter the username for the authentication. |
| Password | Enter the password for the authentication. |
|
Enter a static IP assigned for L2TP Server connection. If empty, the IP will be randomly assigned by L2TP server. |
| MTU | Maximum Transmission Unit, maximum packet size allowed to be transmitted for L2TP connection. Should be left as default value of 1500 in most cases. |
|
Check the option to add the debug syslog for L2TP. |
|
Enter some other PPP configuration in this field. Each expression can be separated by a ‘,’. |

|
Field |
Description |
|
Specify the interface to establish L2TP tunnel. Only specified interface turn into active WAN will start VPN tunnel. Default is null and unbound link interface. e.g. WAN, WWAN1, etc.. |
| Enable NAT | Enable: The source address of the data packets flowing out from the lower host device is NAT-ed to the VPN virtual IP. |
| Enable Default Route | Enable: The traffic will be routed out through this L2TP interface first.. |