vpn through s-box firewall of checkpoint

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i'm try to create a vpn from the internet to my "small buisness server 2003" that act as vpn server without any luck, if i try to connect to my server from the internal network it's work just fine, iv'e mapped the correct ports according to the microsoft article that say to forward port 1723 and 47 to the vpn server (inside direction), and enable GRE protocol on the firewall, but nothing seem to help,i run netstat -n command on the client side and see that it stop on the SYN SENT step, there is no event on the firewall or on the server, and i keep getting message that said that the server not responde, plaese help me out, thanks a lot

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Try opening ports 1723 and 500 on your firewall with port forwarding to the IP of the NIC in your server that is configured for VPN.

Make sure your SMB2003 is set up for VPN whether it be PPTP or L2TP over IPSEC.

Make sure your fire is set to allow any incoming connections.

make sure you are using your public IP and not your private address of your server.

Are your AD users allowed for remote access in their user profile.

when you are at home are the 1723 and 500 ports on your router or firewall at home opened?

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