Advanced Network - D-Link DVG-N5402SP User Manual

DVG-N5402SP User's Manual

3-2-4 Advanced Network

3-2-4-1 ALG
ALG (Application Layer Gateway) is also named the third generation firewall. When the user on the trusted
network wants to connect to the untrusted network (Internet), the application will be guided to the proxy
server of the firewall. The proxy server disguises the actual server on the Internet. It can estimate the
request, and decides the permission or deny of the request according to the rule in a suit of unit network
service.
ADVANCED → Advanced Network → ALG
D-Link Systems, Inc.
MAINTENANCE
24