How To Connect VPN With PPTP Client

If you are using Linux or other UNIX like operating systems and you want to create VPN connection to Company's network, you can use these sample configurations:

In /etc/ppp/chap-secrets:

# for PPTP server (Windows VPN server) without domain
your_username server_name "your_password" *
# for PPTP server with domain
your_domain\\your_username server_name "your_password" *

To connect to PPTP server without domain

In /etc/ppp/peers/server_name:

pty "pptp server_name --nolaunchpppd"
require-mppe-128
lock
noauth
nobsdcomp
nodeflate
name chaitat
remotename server_name
ipparam server_name

To connect to PPTP server with domain

In /etc/ppp/peers/server_name:

pty "pptp server_name --nolaunchpppd"
lock
noauth
nobsdcomp
nodeflate
name your_domain\\your_username
remotename server_name
ipparam server_name
refuse-eap
refuse-chap
refuse-mschap
require-mppe-128

You might also have to do a post configuration after connecting by adding a route to Company's internal ip addresses:

# route add -net 10.10.0.0 netmask 255.255.0.0 gw [the ip address of the gateway you are connected to]

e.g. route add -net 10.10.0.0 netmask 255.255.0.0 gw 10.10.13.10