MERCUSYS MB112-4G 300Mbps Wireless N 4G LTE Router User Guide

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Chapter 9 NAT Forwarding  

Chapter 9. NAT Forwarding  

Router’s NAT (Network Address Translation) feature makes the devices in the LAN  

use the same public IP address to communicate in the internet, which protects the  

local network by hiding IP addresses of the devices. However, it also brings about the  

problem that external host cannot initiatively communicate with the specified device  

in the local network.  

With forwarding feature the router can penetrate the isolation of NAT and allows the  

external hosts on the internet to initiatively communicate with the devices in the local  

network, thus to realize some special functions.  

The router includes four forwarding rules. If two or more rules are set, the priority of  

implementation from high to low is Virtual Servers, Port Triggering, UPnP and DMZ.  

9. 1. Translate Address and Port by ALG  

ALG (Application Layer Gateway) allows customized NAT (Network Address Translation)  

traversal filters to be plugged into the gateway to support address and port translation  

for certain application layer “control/data” protocols: FTP, TFTP, H323 etc. Enabling ALG  

is recommended.  

1. Visit http://mwlogin.net, and log in with the password you set for the router.  

2. Go to Advanced > NAT Forwarding > ALG.  

Note: It is recommended to keep the default settings.  

• PPTP Pass-through: If enabled, it allows Point-to-Point sessions to be tunneled  

through an IP network and passed through the router.  

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Name	MERCUSYS MB112-4G 300Mbps Wireless N 4G LTE Router User Guide
Make	MERCUSYS
Language	English
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File size	1.1 MB

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