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Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
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IP Alias
This function creates multiple virtual IP interfaces on this router. It helps to connect two or more local
networks to the ISP or remote node. In this case, an internal router is not required.
IP Address: Specify an IP address on this virtual interface.
SubNetmask: Specify a subnet mask on this virtual interface.
Security Interface: Specify the firewall setting on this virtual interface.
Internal: The network is behind NAT. All traffic will do network address translation when sending out to
Internet if NAT is enabled.
External: There is no NAT on this IP interface and connected to the Internet directly. Mostly it will be used
when providing multiple public IP addresses by ISP. In this case, you can use public IP address in local
network which gateway IP address point to the IP address on this interface.
DMZ: Specify this network to DMZ area. There is no NAT on this interface.