DAG1000/2000 Series FXS Voice Gateway User Manual
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4.5.5 DMZ Host (Routing mode)
DMZ(Demilitarized Zone) connect web, e-mail etc. server allowed external to access to this
area. Make the internal network located the back of the zone of confidence and not allow
any access, separation of inside and outside the network, protect user information.DMZ
can be understood that a special areas of the network and different from 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
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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
