Multiple Network Address Translation 11-31
Select
ADD NAT PUBLIC RANGE
and press Return. You are returned to the Network Address Translation
screen.
Next, select
Show/Change Map List
and choose
Easy-PAT List
. Select
Add Map
. The
Add NAT Map
screen
appears. (Now the name
Easy-PAT List
is a misnomer since it has a static map included in its list.) Enter in
192.168.1.1 for the
First Private Address
and 192.168.1.5 for the
Last Private Address
.
Select
Use NAT Public Range
and from the pop-up menu choose
Static Range
. Select
ADD NAT MAP
and
press Return.
This will statically map the first five public IP addresses to the first five corresponding private IP addresses and
will map 206.1.1.6 to the remaining private IP addresses using PAT.
Notes on the example
The Easy-Map List and the Easy-PAT List are attached to any new Connection Profile by default. If you want to
use this NAT configuration on a previously defined Connection Profile then you need to
bind
the Map List to the
profile. You do this through either the NAT Associations screen or the profile’s configuration screens.
The PAT par t of this example setup will allow any user on the Netopia Router's LAN with an IP address in the
range of 192.168.1.6 through 192.168.1.254 to
initiate
traffic flow to the outside world (for example, the
Internet). No one on the Internet would be able to initiate a conversation with them.
The Static mapping par t of this example will allow any of the machines in the range of addresses from
192.168.1.1 through 192.168.1.5 to communicate with the outside world as if they were at the addresses
206.1.1.1 through 206.1.1.5, respectively. It also allows any machine on the Internet to access any ser vice
(por t) on any of these five machines.
You may decide this poses a security risk. You may decide that anyone can have complete access to your FTP
ser ver, but not to your router, and only limited access to the desired ser vices (por ts) on the Web and Mail
ser vers.
Add NAT Map ("Easy-PAT List")
First Private Address: 192.168.1.1
Last Private Address: 192.168.1.5
Use NAT Public Range...
ADD NAT MAP CANCEL
Summary of Contents for 4752
Page 1: ...Netopia 4752 SDSL Integrated Access Device Administration Guide ...
Page 12: ...Administration Guide ...
Page 18: ...2 4 Administration Guide ...
Page 30: ...4 8 Administration Guide ...
Page 34: ...5 4 Administration Guide ...
Page 40: ...6 6 Administration Guide ...
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