In order to give support to one of our customer I had to install Novell
BorderManager 3.8.9 VPN Client.

From my workspace I am behind an MS ISA server (SP2). I have added
protocol definitions UDP 353, TCP 353, TCP 213, UDP 2010 and an IP packet
filter for protocol 57.

I am able to establish the VPN connection and are being authenticated. But
when I want to make a Remote Desktop Connection to the IP address of a
customer's server I get a time out.

I also installed the client on a PC with an ISDN dail-up connection. After
establishing the VPN connection I am able to make an RDC connection.

What need I to configure extra on our ISA Server in order to make the RDC
connection from my own workspace, behind the ISA Server?