ZyXEL P-336M User’s Guide
47 Chapter 4 Advanced
a specific port number and protocol ("input" port and protocol), the P-336M forwards the
traffic to the LAN IP address of the computer that sent the request. After that computer’s
connection for that service closes, another computer on the LAN can use the service in the
same manner. This way you do not need to configure a new IP address each time you want a
different LAN computer to use the application.
4.3.3 Configuring Special Applications
To allow ALG passthroughs and configure port triggering, click Advanced > Applications to
display the configuration screen.
Figure 18 Advanced: Applications
The following table describes the labels in this screen.
Table 18 Advanced: Applications
LABEL DESCRIPTION
Application Level
Gateway (ALG)
Application
PPTP Select this option to allow multiple computers on the LAN to connect to a remote
network using the PPTP protocol.
IPSec VPN Select this option to allow multiple VPN clients to connect to a remote network
using the IPSec protocol.
This ALG may affect VPN connections for VPN clients using NAT traversal. In
this case, clear this check box to disable this ALG.
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