Environment
Notification Server 6.0, 6.0.6074
Altiris Agent
DMZ
Cause
The Notification Server is able to ping the workstation, but the workstation is not able to ping the Notification server. The server doesn't have a public IP address that can be seen from the public Internet.
Resolution
It is not possible to get behind a DMZ firewall without opening a port or using VPN for the workstation to use to that server.