ZyXEL Communications P-793H User Manual

 Chapter 6 LAN Setup

P-793H User’s Guide

IP alias allows you to partition a physical network into different logical networks over the 
same Ethernet interface. The ZyXEL Device supports three logical LAN interfaces via its 
single physical Ethernet interface with the ZyXEL Device itself as the gateway for each LAN 
network.
When you use IP alias, you can also configure firewall rules to control access between the 
LAN's logical networks (subnets).

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Make sure that the subnets of the logical networks do not overlap.

The following figure shows a LAN divided into subnets A, B, and C.

Figure 42   Physical Network & Partitioned Logical Networks

Use this screen to configure subnets on the LAN. Click Network > LAN > IP Alias. The 
screen appears as shown.

MAC Address

The MAC (Media Access Control) or Ethernet address on a LAN (Local Area 

Network) is unique to your computer (six pairs of hexadecimal notation).
A network interface card such as an Ethernet adapter has a hardwired address 

that is assigned at the factory. This address follows an industry standard that 

ensures no other adapter has a similar address.

Reserve

Select the check box(es) in each entry to have the ZyXEL Device always assign 

the selected entry(ies)’s IP address(es) to the corresponding MAC address(es) 

(and host name(s)). You can select up to 32 entries in this table.

Modify

Click the modify icon to have the IP address field editable and change it.

Apply

Click Apply to save your changes back to the ZyXEL Device.

Cancel

Click Cancel to begin configuring this screen afresh.

Refresh

Click Refresh to reload the DHCP table.

Table 27   LAN > Client List (continued)