Operation Manual

Cerberus ADSL2+ Lite (P 6311-07)
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Server – This type allows you to specify inside servers of different services behind the NAT to
be accessible to the outside world. The following table summarizes these types.
TYPE IP MAPPING
One-to-One ILA1 IGA1
Many-to-One (SUA/PAT) ILA1 IGA1
ILA2 IGA1
...
Many-to-Many Overload ILA1 IGA1
ILA2 IGA2
ILA3 IGA1
ILA4 IGA2
...
Many-to-Many No Overload ILA1 IGA1
ILA2 IGA2
ILA3 IGA3
ILA4 IGA4
...
Server Server IP 1 IGA1
Server IP 2 IGA1
Server IP 3 IGA1
NAT (Network Address Translation) is a method for disguising the private IP addresses you
use on your LAN as the public IP address you use on the Internet. You define NAT rules that
specify exactly how and when to translate between public and private IP addresses. Simply
select this option to setup the NAT function for your ADSL router.
Virtual Circuit – The Virtual Circuit (VC) properties of the ATM VC interface identify a unique
path that your ADSL/Ethernet router uses to communicate via the ATM-based network with
the telephone company central office equipment.
Nat Status – This filed shows the current status of the NAT function for the current VC.
Number of IPs – This field is to specify how many IPs are provided by your ISP for current
VC. It can be single IP or multiple IPs. Note: For VCs with single IP, they share the same DMZ
& Virtual servers; for VCs with multiple IPs, each VC cab set DMZ and Virtual servers.
Furthermore, for VCs with multiple IPs, they can define the Address Mapping rules; for VCs
with single IP, since they have only one IP, there is no need to individually define the Address
Mapping rule.
DMZ / Virtual Server / IP Address Mapping – opens corresponding page: