Billion BiPAC 8500/8520 User Manual page 44

IP Alias
This function supports the creation of multiple virtual IP interfaces on this router. It helps to
connect two or more local networks to the ISP or a remote node. In this case, an internal router
is not required.
Click Add to add a new IP alias.
IP Address: Specify an IP address on this virtual interface.
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SubNetmask: Specify a subnet mask on this virtual interface.
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Security Interface: Specify the firewall setting on this virtual interface.
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Internal: The network is behind NAT. All traffic will translate network address when being
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sent out to the Internet if NAT is enabled.
External: There is no NAT on this IP interface and it is connecting to the Internet directly.
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This is used when provided with multiple public IP addresses by ISP. In this case, you
can use the public IP address in the local network with gateway IP address point to the
IP address on this interface.
DMZ: Specify this network to the DMZ area. There is no NAT on this interface .
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Chapter 4: Configuration
Billion BiPAC 8500/8501/8520/8521 SHDSL (VPN) Firewall Bridge/ Router
40