This has been tested under RHEL 4/5, CentOS 4.4/5 and fedora 8 (kernel version 2.6.15+)
I found and stored few required rpm packages from various places that you will download from given.
http://www.4shared.com/file/113579629/ee5e0aed/libglade-017-11i386.html
http://www.4shared.com/file/113579642/2fd674e3/libglade-devel-017-11i386.html
http://www.4shared.com/file/113579654/dfaee097/libxml-1817-8i386.html
http://www.4shared.com/file/113579677/7491d3af/libxml-devel-1817-8i386.html
http://www.4shared.com/file/113579714/ba004fa4/php4-pcntl-449-1fc5i386.html
http://www.4shared.com/file/113579747/5e7eea5b/php4-pcntl-gtk-102-4fc5i386.html
http://www.4shared.com/file/113579758/d7dac68b/pptp-172-3fc5i386.html
http://www.4shared.com/file/113579764/f541d963/pptpconfig-20060821-1fc5noarch.html
After downloading these first you will have to install lib packages and then pptp packages
rpm -ivh –nodeps libglade-0.17-11.i386.rpm libglade-devel-0.17-11.i386.rpm libxml-1.8.17-8.i386.rpm libxml-devel-1.8.17-8.i386.rpm
rpm -ivh pptp-1.7.2-3.fc5.i386.rpm pptpconfig-20060821-1.fc5.noarch.rpm php4-pcntl-gtk-1.0.2-4.fc5.i386.rpm php4-pcntl-4.4.9-1.fc5.i386.rpm
now go to the given image that I would like to show how I added vpn connection
1) open vpnclient configuration launchpad with “pptpconfig”
2) Now create your profile with all the details and add
Now you have to set you external route or tunnel IP range into it for that click on “Routing” and set “All to Tunnel” and update your profile.
Now start your vpn client.
–Ravi