On Sun, Oct 28, 2012 at 1:58 PM, <firestarter-user-request@lists.sourceforge.net> wrote:

Message: 2
Date: Sat, 27 Oct 2012 12:33:29 +0100
From: Mike Edwards <mike@chunkmedia.co.uk>
Subject: [Firestarter-user] Help Understanding Why Firestarter is
        blocking y VPN connection to Hidemyass Proxy VPN server!
To: firestarter-user@lists.sourceforge.net
Message-ID: <508BC689.9050105@chunkmedia.co.uk>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi, I just started using the web proxy service Hidemyass with my Ubuntu
12.04 box. I have set up the vpn connection in "Network Connections",
however, I only get a successful connection if I stop the firewall with
Firestarter. I have read lots and lots of forum threads and tried lots
of different settings but every time I start the firewall the connection
drops and every time I stop the firewall it works! I just can't find
accessible information regarding how to set-up Firestarter to let the
vpn connection through.

My current set-up in Firestarter is:

In the "Policy" tab > "Inbound traffic policy" > "Allow connections from
host" > [my vpn IP address]

In the "Policy" tab > "Inbound traffic policy":

Allow service: unknown
Port: 1723
For: my vpn IP address]
In /etc/firestarter/user-pre (i.e., $ sudo gedit
/etc/firestarter/user-pre) I am using the following settings.

  # Forward PPTP VPN client traffic
$IPT -A FORWARD -i $IF -o $INIF -p tcp --dport 1723 -m state --state
$IPT -A FORWARD -i $IF -o $INIF -p 47 -m state --state
$IPT -A FORWARD -i $INIF -o $IF -p 47 -m state --state

I'm really stuck with this. Any help would be really appreciated.

Mike could you post the output of # iptables -L  and $ ifconfig ?
Balasubramaniam Natarajan