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SI2000 Callisto821+ Router Users Guide 

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This chapter will describe to you how to configure the LAN and WAN parameters of your SI2000 
Callisto821+ Router to access the internet. Assume that the following network is setup: 
 

 

 

 

figure 69: The Network setup for Internet access. 

 
The default parameters of the SI2000 Callisto821+ Router are listed in the chapter 

These parameters should work for the majority of installations. If the parameters are not satisfactory, read 

 how to change them. 

 
The whole network is separated into two parts. The part of the network that is limited to the immediate area, 
usually the same building or floor of a building is named LAN (Local Area Network).  
 
A WAN (Wide Area Network) on the other hand is an outside connection at another network or the Internet. If 
you look at the figure 69 the WAN network in your case consists of ADSL line, DSLAM, ATM line, ISP 
premises and Internet. 
 
All you have to do is to setup in your SI2000 Callisto821+ Router in the way that your ISP needs to. These 
settings are: 

1. Encapsulation 
2.  VCI and VPI  
3.  Multiplexing (VC or LLC based) 
4.  WAN IP Address (if it is given by your ISP) 

 
We will not exactly describe the proceedings how to set up the WAN connection using all those settings, 
because that is already done in previous chapters for all encapsulations that Callisto821+ supports. All you 
have to do is to setup a WAN connection with encapsulation required by your ISP.  
 
But as mentioned before be careful with the next features: 

Be sure to use the same encapsulation method required by your ISP. SI2000 Callisto821+ Router supports 
the methods that are listed bellow: