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Option 1. With DHCP for receiving routes
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1. Update
sudo apt-get update -y
2. Install pptp-linux
sudo apt-get install -y pptp-linux
3. Create connection
sudo pptpsetup --create vpnki --server msk.vpnki.ru --username <tunnel name> --password <tunnel password>
4. Connect tunnel
sudo pon vpnki updetach
5. Check interface ppp0
ifconfig -s
6. Ping VPNKI router
ping 172.16.0.1
7. Disconnect tunnel
sudo poff vpnki
8. Check interface ppp0
ifconfig -s
9. Add automatic set-up PPTP tunnel on OS boot, open file
sudo nano -B /etc/rc.local
10. Before "exit 0" input this text
vpn="on"
if [ $vpn = on ]; then
printf "\nVPN connection to VPNKI\n"
pon vpnki updetach
printf "Netstat output of all PPTP sockets\n"
netstat -a | grep "/var/run/pptp/"
fi
Save Ctrl+X
11. Test local.rc without reboot
sudo /etc/rc.local
12. Check interface ppp0
ifconfig -s
13. We need to auto-reconnect feature activate in case of line disconnect. For this open file
sudo nano -B /etc/ppp/peers/vpnki
14. Please add in the end of file
persist
maxfail 0
holdoff 10
Save Ctrl+X
15. For receiving routes from VPNKI network and routes from your other tunnels (DHCP Option 249) you have to download, extract and put this fileе (named splitp) in /etc/ppp/ip-up.d
16. Please change rights to run this file
chmod 755 /etc/ppp/ip-up.d/splitp
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Option 2. With static routes
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1. Update
sudo apt-get update -y
sudo apt-get upgrade -y
2. Install pptp-linux
sudo apt-get install -y pptp-linux
3. Create connection
sudo pptpsetup --create vpnki --server msk.vpnki.ru --username <tunnel name> --password <tunnel password>
4. Connect tunnel
sudo pon vpnki updetach
5. Check that ppp0 is up
ifconfig -s
6. Pingа VPNKI router
ping 172.16.0.1
7. Disconnect tunnel
sudo poff vpnki
8. Check ppp0 disconnect
ifconfig -s
9. Add automatic PPTP connect on OS boot, open file
sudo nano -B /etc/rc.local
10. Just before "exit 0" add text
vpn="on"
if [ $vpn = on ]; then
printf "\nVPN connection to VPNKI\n"
pon vpnki updetach
sudo route add -net "172.16.0.0/16" dev "ppp0" #Route to VPNKI network
sudo route add -net "192.168.100.0/24" dev "ppp0" #Example route to your "other" tunnel (in home network 192.168.100.0/24)
printf "Netstat output of all PPTP sockets\n"
netstat -a | grep "/var/run/pptp/"
fi
Save Ctrl+X
11. Test local.rc without reboot
sudo /etc/rc.local
12. Check ppp0 interface
ifconfig -s
13. We have to enable auto reconnect feature in case of line disconnect, please open file
sudo nano -B /etc/ppp/peers/vpnki
14. Add at the end
persist
maxfail 0
holdoff 10
Save Ctrl+X
15. We have to automatically put routes to VPNKI network (and your "other" tunnel) in case of line disconnect. Please create file
sudo nano -B /etc/ppp/ip-up.d/routeadd
16. And add this lines to file:
route add -net "172.16.0.0/16" dev "ppp0" #Route to VPNKI network
Save Ctrl+X
17. Please change rights to run this file when ppp0 is up
chmod 755 /etc/ppp/ip-up.d/routeadd