ZyXEL LTE7485-S905 User Guide - Page 113
ALG, Network Setting > NAT >, LABEL, DESCRIPTION
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Chapter 9 Network Address Translation (NAT) can initiate connections to devices on the DMZ but not to those on the LAN. You can put public servers, such as email, web, and FTP servers, on the DMZ to provide services on both the WAN and LAN. To use this feature, you first need to assign a DMZ host. Click Network Setting > NAT > DMZ to open the DMZ screen. Note: Use an IPv4 address for the DMZ server. Note: Enter the IP address of the default server in the Default Server Address field, and click Apply to activate the DMZ host. Otherwise, clear the IP address in the Default Server Address field, and click Apply to deactivate the DMZ host. Figure 86 Network Setting > NAT > DMZ The following table describes the fields in this screen. Table 37 Network Setting > NAT > DMZ LABEL DESCRIPTION Default Server Address Enter the IP address of the default server which receives packets from ports that are not specified in the Port Forwarding screen. Apply Cancel Note: If you do not assign a default server, the Zyxel Device discards all packets received for ports not specified in the virtual server configuration. Click this to save your changes back to the Zyxel Device. Click Cancel to restore your previously saved settings. 9.5 ALG Click Network Setting > NAT > ALG to open the ALG screen. Use this screen to enable and disable the NAT Application Layer Gateway (ALG) in the Zyxel Device. Application Layer Gateway (ALG) allows certain applications such as File Transfer Protocol (FTP), Session Initiation Protocol (SIP), or file transfer in Instant Messaging (IM) applications to pass through the Zyxel Device. LTE Series User's Guide 113