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If you want to access the server within a LAN using a domain name, refer to the solution DMZ +
DDNS.
After the configurations, if internet users still cannot access the FTP server, close the firewall, antivirus
software and security guards on the host of the FTP server and try again.
11.3 ALG
Application Layer Gateway (ALG) allows you to enable or disable FTP, TFTP, H323, SIP, RTSP
functions and VPN pass through as required.
To access the page, log in to the web UI of the router, and navigate to NAT Forwarding > ALG.
The ALG function is enabled by default.
Parameter description
Name
Description
L2TP Pass-through
If you select L2TP protocol when you create a VPN connection on your computer in the
LAN of the router, it takes effect only when this checkbox is selected.
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Document Version: V1.0