Why can't I access my DMZ from the outside?

Problem description

The public IP addresses you received from your ISP were divided into two groups, one of which is used on your DMZ and one on the outside of the firewall. When this configuration is applied, the DMZ computers can't be accessed from the outside.

What to do

The probable cause to this is that the router acting as default gateway for the firewall doesn't know that the DMZ IP addresses should be routed through the firewall. Contact your ISP for reconfiguration of the router.

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