DAG1000/2000 Series FXS/FXO Voice Gateway User Manual
22
Dinstar Technologies Co., Ltd.
the external network or intranet. Public server that does not contain confidential
information usually placed in DMZ, such as web, Mail, FTP etc. Accuser from intranet can
visit the service of DMZ, but can’t come into contact with confidential or private information
stored in the network. Even if DMZ server is damaged, it will not be confidential
information in the internal network.
Figure 4.5-6 DMZ Configuration Interface
【
Note
】
：
After configuration, restart device configuration validation.
4.5.6 Forward Rule (Routing mode)
In some cases, LAN network equipment need to provide some communication in WAN
network (such as port for 21 FTP service), This time can be configured forwarding rules for
the network equipment.
Service ports namely the need to provide service network mouth WAN ports, IP address
that LAN network provide services to the mouth of the network equipment IP address, the
protocol is TCP or UDP.
The different between forward rule and DMZ host is that DMZ Host offers continuous
multiple
Port (0-1024) and all the foreign communication agreement; while the forward rule offers a
single or a few port foreign communication on some protocol. When the conflicts exist
between forward rule and DMZ host,the configuration of forwarding rules is preferred.
Forward rule configuration interface as follows:
