VPN Public IP risk

[netzorro]

Hi all,
I have an adsl connection to the internet.
I asked my isp for a fixed ip address.
They assigned me a public ip address and I have my domain now.
My isp providers didn't change my adsl connection. He gave me
username and password to create a VPN connection to them. When
connect the vpn my ip changes to the public and everything works fine.
Weird way to give me the ip but it works.

My computer is behind a router, firewall. It used to work fine but no
since the connection is through the vpn my computer is totall
exposed.

How can I protect it from communications inside the vpn?
Will it work if I install a firewall in my computer?
Can ISA server help me?
I'm not sure if a firewall can block ports from requerests that com
from the vpn.

Thanks for any help or suggestion
Dieg

 

[Jack \(MVP-Networking\).]

Hi
I think that you would be best serve by asking the ISP to clarify what you
can, or can not do with this type of concoction.
VPN is not an open connection to the Internet, it needs a VPN to VPN
connection. and it is not clear how they set the system for you.
In addition there are simpler ways to maintain a Web server on a dynamic
regular DSL by using a DNS service.
Look at option 3 here, http://www.ezlan.net/myip.html
Jack (MVP-Networking).