ZyXEL Communications ZyWALL 2 Series User Manual

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ZyWALL 2 Series User’s Guide 
3-8  
Wizard 
Setup 
Table 3-3 PPTP Encapsulation 
LABEL DESCRIPTION 
My IP Address 
Type the (static) IP address assigned to you by your ISP. 
My IP Subnet 
Mask 
Type the subnet mask assigned to you by your ISP (if given). 
Server IP Address  Type the IP address of the PPTP server. 
Connection 
ID/Name 
Enter the connection ID or connection name in this field. It must follow the "c:id" and 
"n:name" format. For example, C:12 or N:My ISP.  
This field is optional and depends on the requirements of your DSL modem.  
Next 
Click Next to continue.  
Back 
Click Back to return to the previous screen.  
3.4  WAN and DNS  
The third wizard screen allows you to configure WAN IP address assignment, DNS server address 
assignment and the WAN MAC address.  
3.4.1  WAN IP Address Assignment  
Every computer on the Internet must have a unique IP address. If your networks are isolated from the 
Internet, for instance, only between your two branch offices, you can assign any IP addresses to the hosts 
without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following 
three blocks of IP addresses specifically for private networks. 
Table 3-4 Private IP Address Ranges 
10.0.0.0 -
10.255.255.255 
172.16.0.0 -
172.31.255.255 
192.168.0.0 -
192.168.255.255 
 
You can obtain your IP address from the IANA, from an ISP or have it assigned by a private network. If you 
belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the 
Internet addresses for your local networks. On the other hand, if you are part of a much larger organization, 
you should consult your network administrator for the appropriate IP addresses.