Nat; Exceptional Rule Group - Billion BiPAC 8900X R3 User Manual

3g/4g lte vdsl2/adsl2+ vpn firewall router
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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 Group

Exceptional Rule is dedicated to giving or blocking Virtual Server/ DMZ access to some specific IP or
IPs(range). Users are allowed to set 8 different exceptional rule groups at most. In each group, user
can add specific IP or IP range.
Press Edit to set the exceptional IP (IP Range).
Default Action: Please first set the range to make "Default Action" setting available. Set "Allow" to
ban the listed IP or IPs to access the Virtual Server and DMZ Host
Check "Block" to grant access to the listed IP or IPs to Virtual Server and DMZ Host.
Apply: Press Apply button to apply the change.
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