Setting up your PPTP VPN
Here are generic settings that you need to set up any generic PPTP client.
PPTP Server Name: gateway.publicvpn.net
Username: your publicvpn.com username
Password: your publicvpn.com password
DHCP: on
MPPE: stateless
Encryption: 40 or 128 bit. 128 bit encryption is recommended.
Client IP: 172.31.128.1
Client Subnet Mask: 255.255.128.0