Im trying to setup a vpn to our network but i simply cant get it works. The connection mapp like this:
Internet -> Cisco (Firewall) (One public ip) -> pfSense (Firewall) (Another public IP)(VPN which not works) -> LAN
The problem im having is connection with 2 firewall... I know I could connect the wan directly to internet but our internet modem didnt allow us to do it...
From Cisco I did a NAT rule that NAT the pfSense firewall private IP to public IP, i also opened PPTP port and GRE port in Cisco. Im trying to use PPTP connect from the LAN, it works perfectly no problem at all. I also did try connect to public IP of the pfSense, it works. When Im trying to connect from mobile (mobile internet, outside our LAN) it didnt work, I received the PPTP not answering problem... I also tried to ping out from pfSense to google.com it didnt work too. Well I dont know what i did wrong. I know Cisco got VPN also but we are cheap the license cost so we used a open firewall.
Could anyone give me some advice please.