197
Appendix H – NAT setup
The Nokia A032 can provide NAT firewall
security, preventing unwanted access to your
network from external Internet users.
The NAT firewall converts all IP addresses on
your local network into a single external IP
address for use on the intranet or Internet.
Users outside the firewall have no visibility of
the real IP address of your network.
Firewall
Internet
Nokia
Access
Point
local IP network
external IP address
1
%
5
%
1
0
%
5
0
%
8
0
%
1
0
0
%
b
u
s
y
a
i
r
t
x
a
i
r
t
x
p
o
w
e
r
1
%
5
%
1
0
%
5
0
%
8
0
%
1
0
0
%
b
u
s
y
a
ir
t
x
a
i
r
t
x
l
a
n
l
in
k
la
n
b
u
s
y
a
l
e
r
t
Modem
A032-Adv.book Page 197 Monday, November 13, 2000 10:47 AM