ZyXEL p-660r-t1 v2 Manual Do Utilizador

Página de 175
P-660R-Tx v2 Series User’s Guide
42
Chapter 3 Wizard Setup
If the ISP did not explicitly give you an IP network number, then most likely you have a single 
user account and the ISP will assign you a dynamic IP address when the connection is 
established. If this is the case, it is recommended that you select a network number from 
192.168.0.0 to 192.168.255.0 and you must enable the Network Address Translation (NAT) 
feature of the ZyXEL Device. The Internet Assigned Number Authority (IANA) reserved this 
block of addresses specifically for private use; please do not use any other number unless you 
are told otherwise. Let's say you select 192.168.1.0 as the network number; which covers 254 
individual addresses, from 192.168.1.1 to 192.168.1.254 (zero and 255 are reserved). In other 
words, the first three numbers specify the network number while the last number identifies an 
individual computer on that network.
Once you have decided on the network number, pick an IP address that is easy to remember, 
for instance, 192.168.1.1, for your ZyXEL Device, but make sure that no other device on your 
network is using that IP address.
The subnet mask specifies the network number portion of an IP address. Your ZyXEL Device 
will compute the subnet mask automatically based on the IP address that you entered. You 
don't need to change the subnet mask computed by the ZyXEL Device unless you are 
instructed to do otherwise.
3.2.1  IP Address Assignment
A static IP is a fixed IP that your ISP gives you. A dynamic IP is not fixed; the ISP assigns you 
a different one each time. The Single User Account feature can be enabled or disabled if you 
have either a dynamic or static IP. However the encapsulation method assigned influences 
your choices for IP address and ENET ENCAP gateway.
3.2.1.1  IP Assignment with PPPoA or PPPoE Encapsulation
If you have a dynamic IP, then the IP Address and ENET ENCAP Gateway fields are not 
applicable (N/A). If you have a static IP, then you only need to fill in the IP Address field and 
not the ENET ENCAP Gateway field.
3.2.1.2  IP Assignment with RFC 1483 Encapsulation
In this case the IP Address Assignment must be static with the same requirements for the IP 
Address
 and ENET ENCAP Gateway fields as stated above.
3.2.1.3  IP Assignment with ENET ENCAP Encapsulation
In this case you can have either a static or dynamic IP. For a static IP you must fill in all the IP 
Address
 and ENET ENCAP Gateway fields as supplied by your ISP. However for a 
dynamic IP, the ZyXEL Device acts as a DHCP client on the WAN port and so the IP 
Address
 and ENET ENCAP Gateway fields are not applicable (N/A) as the DHCP server 
assigns them to the ZyXEL Device.