Chapter 3: Accessing the Internet
Unnumbered IP over ATM (IPoA)+NAT
Description:
If you apply for multiple IP addresses from your ISP, you can assign these public IP
addresses to the IAD and public server, e.g., Web or FTP server. Typically the first
IP is network address, the second is used as the IAD IP address and the last one is
subnet broadcasting. Other remaining IP addresses can be assigned to PCs on the
LAN.
The following example uses the IP address ranging from 10.3.80.81 to 10.3.80.86
and the subnet mask is 255.255.255.248. In such circumstance, we enable NAT
function but not assign any WAN IP.
Configuration:
1.
Start your browser and type
192.168.1.1
in the URL box to access ADSL
web-based manager.
2. Go
to
Quick Start -Quick Setup
. Uncheck
Auto Scan Internet Connection
(PVC)
. Key in the
VCI
and
VPI
value, e.g.:
VPI – 0
VCI – 32
Click the
Next
button.
3. On
the
Configure Internet Connection -Connection Type
page, select
IP
over ATM (IPoA)
then click
Next
.
4. On
the
WAN IP Settings
page, select
None
for WAN IP address settings.
Then, select
Use the following DNS Server Address
and key in the
information that your ISP offered, e.g.:
Primary DNS server: 168.95.1.1
Secondary DNS server: 168.95.192.1
5. Check
the
Enable NAT
box. And click
Next
.
6.
On the
Configure LAN side Settings
page, key in the information for your
LAN, e.g.,
Primary
IP Address
:
192.168.1.1
Subnet mask
:
255.255.255.0
Start IP Address: 192.168.1.2
End IP Address: 192.168.1.254
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