User's Manual

Archer C9 AC1900 Wireless Dual Band Gigabit Router
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3. When necessary, the external host will be able to connect to the local host using one of the
ports defined in the Incoming Ports field.
 Note:
1. When the trigger connection is released, the corresponding opened ports will be closed.
2. Each rule can only be used by one host on the LAN at a time. The trigger connection of other
hosts on the LAN will be refused.
3. Incoming Ports ranges cannot overlap each other.
5.10.3 DMZ
Choose menu “Advanced→Forwarding→DMZ”, and then you can view and configure DMZ host
in the screen shown in Figure 5-55. The DMZ host feature allows one local host to be ex
posed to
the Internet for a special-purpose service such as Internet gaming or videoconferencing. The
router forwards packets of all services to the DMZ host. Any PC whose port is being forwarded
must have its DHCP client function disabled and should have a new static IP Address assigned to
it because its IP Address may be changed when using the DHCP function.
Figure 5-55 DMZ
To assign a computer or server to be a DMZ server:
1. Select the Enable radio button.
2. Enter the IP address of a local PC that is set to be DMZ host in the DMZ Host IP Address
field.
3. Click the Save button.
5.10.4 UPnP
Choose menu “Advanced→Forwarding→UPnP”, and then you can view the information about
UPnP in the screen shown in Figure 5-56. The Universal Plug and Play (UPnP) feature allows
the devices, such as
Internet computers, to access the local host resources or devices as needed.
UPnP devices can be automatically discovered by the UPnP service application on the LAN.
Figure 5-56 UPnP Setting
 Current UPnP Status - UPnP can be enabled or disabled by clicking the Enable or Disable
button. This feature is enabled by default.