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ADSL Router User Manual 
 
56 
Numbered IP over ATM (IPoA) 
 
Description:  
If you apply for multiple IP addresses from your ISP, you can assign these public IP 
addresses to the ADSL Router and public server, e.g., Web or FTP server. Typically 
the first IP is network address, the second is used as router IP address and the last 
one is for subnet broadcasting. Other remaining IP addresses can be assigned to 
PCs on the LAN. 
The following example uses the LAN IP address ranging from 10.11.80.81 to 
10.11.80.86 and the subnet mask for LAN is 255.255.255.248. The WAN IP address 
is 10.11.95.233, and the subnet mask for WAN is 255.255.255.248.  
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 Use the following IP address and Use 
the following DNS Server Address, then key in the information that your ISP 
offered, e.g.:   
WAN IP Address: 10.11.95.233 
WAN Subnet Mask: 255.255.255.248 
Primary DNS server: 168.95.1.1 
Secondary DNS server: 168.95.192.1  
Uncheck Enable NAT and click Next
5. 
On the Configure LAN side Settings page, key in the information for your 
LAN, e.g., 
Primary IP Address192.168.1.1 
Subnet mask255.255.255.0 
Start IP Address: 192.168.1.2 
End IP Address: 
192.168.1.254 
6. 
Check Configure the second IP Address and Subnet Mask for LAN 
Interface 
and enter the information needed.   
Secondary IP Address10.11.80.81 
RDAIUS
 Server
AAA
BRAS
STM-1
DSLAM
Loop
Public IP Pre-assigned
                            by ISP
Hub
ADSL
Router
PC(S)
IP over ATM
S/W
Default Private IP
192.168.1.1 
*BRAS: Broadband
Remote Access Server
ISP
(Internet Service Provider)
 
10.11.80.81
10.11.80.83
10.11.80.82
10.11.95.233