www.modecom.eu
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WIRELESS ROUTER ADSL
6.3.4 NAT Mapping Types
NAT supports fi ve types of IP/port mapping. They are:
a. One-to-One: In One-to-One mode, the TC3162 EVM maps one local IP address to one global IP address.
b. Many-to-One: In Many-to-One mode, the TC3162 EVM maps multiple local IP addresses to one global IP address.
c. Many-to-Many Overload: In Many-to-Many Overload mode, the TC3162 EVM maps multiplelocal IP addresses to
shared global IP addresses.
d. Many-to-Many No Overload: In Many-to-Many No Overload mode, the TC3162 EVM maps each local IP address to
a unique global IP address.
e. 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 …
Server
Server 1 IP IGA1 Server 2 IP IGA1 Server 3 IP IGA1
6.3.5 DMZ
A DMZ (de-militarized zone) is a host between a private local network and the outside public network. It prevents out-
side users from getting direct access to s server that has company data. Users of the public network outside the com-
pany can access only the DMZ host. DMZ: Toggle the DMZ function Enabled or Disabled.
DMZ Host IP Address: Enter the specifi ed IP Address for DMZ host on the LAN side
When you are done making changes, click on SAVE to save your changes or on BACK to return to the previous
screen.
6.3.6 Virtual Server
The Virtual Server is the server or server(s) behind NAT (on the LAN), for example, Web server or FTP server, that
you can make visible to the outside world even though NAT makes your whole inside network appear as a single
machine to the outside world. Rule Index: The Virtual server rule index for this VC. You can specify up to 10 rules.
All the VCs with single IP will use the same Virtual Server rules. Start & End port number: Enter the specifi c Start
and End Port number you want to forward. If it is one port only, you can enter the End port number the same as
Start port number. For example, set the FTP Virtual server, you can set the start and end port number to 21. Local
IP Address: Enter the IP Address for the Virtual Server in LAN side. Virtual Server Listing: This is a listing of all vir-
tual servers your have set.
When you are done making changes, click on SAVE to save your changes, DELETE to delete the rule with the param-
eters you set, BACK to return to the previous screen or CANCEL to exit without saving.
