User manual

172
NAT
NAT (Network Address Translation) feature translates a private IP to a public IP, allowing multiple
users to access the Internet through a single IP account, sharing the single IP address. It is a natural
firewall for the private network.
Exceptional Rule
Exceptional Rule is dedicated to giving or blocking NAT/DMZ access to some specific IP or
IPs(range).
Default Action: Select “Allow” to grant access to the listed IP or IPs to Virtual Server and DMZ Host.
While choose “Block” to ban the listed IP or IPs to access the Virtual Server and DMZ Host.
Apply: Press Apply button to apply the change.
Exceptional Rule Range
Valid: Check the box to enable or disable the IP range.
IP Address Range: Specify the IP address range; IPv4 address range can be supported.
Click Add to add the IP Range.
For instance, if user wants block IP range of 172.16.1.102-172.16.1.106 from accessing your set
virtual server and DMZ host, you can add this IP range and valid it.