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--- port_forwarding [2012/08/10 18:24]
eric
+++ port_forwarding [2013/05/21 16:00] (current)
eric
@@ Line 2: / Line 2: @@
 ===== Motivation =====
 {{:portf-schematic.png?nolink&500}}
@@ Line 41: / Line 42: @@
 {{:portf-dmz.png?nolink}}
+When  a DMZ (De-Militarized Zone) is configured, all ports not specifically used by the router or forwarded to other hosts are forwarded to one specific host on the local network.  This can include a lot of hostile traffic, so only activate this option if this host has a firewall configured.
 ===== UPnP / NAT-PMP =====
 {{:portf-upnp.png?nolink}}
+UPnP is a protocol that allows hosts to dynamically open and forward ports.  Since this can pose a security risk, it is disabled by default.  However, some applications require UPnP.  Think carefully before enabling UPnP.

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