Alg - ZyXEL Communications LTE Series User Manual

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
to open the
DMZ
Note: Use an IPv4 address for the DMZ server.
Note: Enter the IP address of the default server in the
Apply
Addre ss
Network Setting > NAT > DMZ
Fig ure 86
The following table describes the fields in this screen.
Table 37 Network Setting > NAT > DMZ
L ABEL
Default Server
Address
Apply
Cancel
9.5 AL G
Click
Ne two rk Se tting > NAT > AL G
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.
Chapter 9 Network Address Translation (NAT)
screen.
DMZ
to activate the DMZ host. Otherwise, clear the IP address in the
field, and click
Apply
DESC RIPT IO N
Enter the IP address of the default server which receives packets from ports that are not
specified in the
Po rt Fo rwa rding
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 to restore your previously saved settings.
C a nc e l
to open the
LTE Series User's Guide
De fa ult Se rve r Addre ss
to deactivate the DMZ host.
screen.
screen. Use this screen to enable and disable the
AL G
114
Ne two rk Se tting > NAT >
field, and click
De fa ult Se rve r