D-Link DVG-N5402SP Manuale Utente Scaricare il pdf (Pagina 27)

DVG-N5402SP User’s Manual MAINTENANCE

D-Link Systems, Inc. 24

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

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D-Link DVG-N5402SP Manuale Utente Pagina 27