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• The "Possible 1st Router" refers to the router directly connected to your system. This is the
router that requires the port forward information.
• The "Possible 2nd Router" refers to the router immediate to the internet connection. This is
the router that requires you to configure a DMZ host connection.
Scenario A: Router/Modem combination + Router
• You may have a router/modem combination, with a second router in your network.
Scearnio B: Multiple Routers
• You may have two routers in your network.
In both scenarios, the router that is immediate to the internet connection (Router 2 in illustration)
must act as a "bridge" to another router (Router 1 in illustration). The Auto Port Forwarding
Wizard must connect to Router 1.
A proper DMZ configuration in Router 2 allows all incoming traffic going through Router 2 to
automatically pass to Router 1. Router 2 acts as a "dummy" router and passes all the incoming
data onto Router 1. Router 1 is the router that needs the port forwarding information.
Internet
Router 2
Router 1
DVR System
Computer
DMZ IP
Modem
Port Forward port 80 to
Router 1
Figure 27.10 Configuring multiple routers.
IP Address: 192.168.1.100
(Assigned by Router 2)
Enter 192.168.1.100 into the DMZ
Host IP section into Router 2
EXAMPLE