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SI2000 Callisto821+ Router Users Guide 

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This chapter will describe to you how to configure your SI2000 Callisto821+ Router in different routed 
configurations to establish LAN to WAN connection. 
 
All of the configurations in this section use the SI2000 Callisto821+ Router ip  module to route between 
Ethernet and an ATM protocol. 

Most likely this is the most widely used configuration in DSL access networks today as many Internet Service 
Providers use PPPoE protocol for accessing the Internet. Traditionally for establishing PPPoE connection a 
client software running on personal computer is needed, but when using SI2000 Callisto821+ Router in 
PPPoE routed mode PPPoE software on PC is no longer needed. In this mode you can also enable NAT 
and allow several local computer to access the Internet over the same DSL line. 
 

 
In order to create routing configuration, you must assign IP addresses to computers running in your network. 
If you use default IP address of your SI2000 Callisto821+ Router which is 192.168.1.1 you will need to 
assign an IP address from IP subnet 192.168.1.0 to all of your computers. If you plan to configure your 
computers you will need to set at least the following: 
 
IP address: 

 
Note: Each computer must have its unique IP address. 
 
If you do not want to configure each client computer you can use DHCP server inside your SI2000 
Callisto821+ Router to automatically configure all computers in your network. You must enable DHCP Server 
in your router. Please refer to chapter 

 for more information about the procedure. 

 
You should also configure your computers to get IP address automatically. Most operating systems 
(Windows, Linux, Mac OS X, ...) come with this setting enabled as default configuration. Refer to operating 
system manuals for more information.