ZyXEL Communications P-660HW-DX Manual De Usuario

Chapter 6 LAN Setup

P-660HW-Dx User’s Guide

The following lists out the steps taken, when a computer tries to access the Internet for the first 
time through the ZyXEL Device.

1 When a computer (which is in a different subnet) first attempts to access the Internet, it 

sends packets to its default gateway (which is not the ZyXEL Device) by looking at the 
MAC address in its ARP table. 

2 When the computer cannot locate the default gateway, an ARP request is broadcast on 

the LAN. 

3 The ZyXEL Device receives the ARP request and replies to the computer with its own 

MAC address. 

4 The computer updates the MAC address for the default gateway to the ARP table. Once 

the ARP table is updated, the computer is able to access the Internet through the ZyXEL 
Device. 

5 When the ZyXEL Device receives packets from the computer, it creates an entry in the 

IP routing table so it can properly forward packets intended for the computer. 

After all the routing information is updated, the computer can access the ZyXEL Device and 
the Internet as if it is in the same subnet as the ZyXEL Device. 

Click LAN to open the IP screen. See 

 for background information. 

Figure 50   LAN IP

The following table describes the fields in this screen.  

Table 26   LAN IP

LAN TCP/IP

IP Address

Enter the IP address of your ZyXEL Device in dotted decimal notation, for 

example, 192.168.1.1 (factory default). 

IP Subnet Mask 

Type the subnet mask assigned to you by your ISP (if given).

Apply

Click Apply to save your changes to the ZyXEL Device.

Cancel

Click Cancel to begin configuring this screen afresh.

Advanced Setup

Click this button to display the Advanced LAN Setup screen and edit more 

details of your LAN setup.