I have hard coded in the client the address of the local DNS server (
privite side of border maner server) to resolve IP addresses.

The DNS Server has a forwarding list of 2 external DNS Servers on the

Internet. When I go to a command prompt and ping an external URL I do

not get a response.

However, when I use IE5 and I access the web page, why can't I ping
host from the command prompt.