User manual

NHP5010 User Manual
75
5.3.4.1 ALG
When trusted users in the network wish to connect to untrusted networks, ALG
leads the relevant applications to the agent server of firewall. The agent server
serves as an actual server of Internet to assess the request, and then it
determines whether to accept the request or not according to the relevant rules of
network service.
Choose Advanced Network > ALG on the left pane or click ALG in the
ADVANCED NETWORK page to display the following page.
In this page, you may enable or disable the ALG settings, such as TFTP Pass
Through, FTP Pass Through, and PPIP Pass Through.
After setting the parameters, click Apply to save the settings.
5.3.4.2 DMZ
DMZ allows all ports of a PC on your LAN to be exposed to the WAN. Enter the IP
address of a PC and set the PC to be a DMZ host. Therefore, this PC is not
restricted by the firewall any more. In this way, the DMZ host can have mutual
unrestricted communcation with a user or server on the WAN.
Choose Advanced Network > DMZ on the left pane or click DMZ in the
ADVANCED NETWORK page to display the following page.