ZyXEL Communications P-334WT Technické informace stáhnout pdf (Strana 149)

Using IP Alias

● What is IP Alias ?

In a typical environment, a LAN router is required to connect two local networks. The Prestige supports to

connect three local networks to the ISP or a remote node, we call this function as 'IP Alias'. In this case,

an internal router is not required. For example, the network manager can divide the local network into

three networks and connect them to the Internet using Prestige's single user account. See the figure below.

The Prestige supports three virtual LAN interfaces via its single physical Ethernet interface. The first

network can be configured in menu 3.2 as usual. The second and third networks that we call 'IP Alias 1'

and 'IP Alias 2' can be configured in menu 3.2.1-IP Alias Setup.

There are three internal virtual LAN interfaces for the Prestigeto route the packets from/to the three

networks correctly. They are enif0 for the major network, enif0:0 for the IP alias 1 and enif0:1 for the IP

alias 2. Therefore, three routes are created in the Prestige as shown below when the three networks are

configured. If the Prestige's DHCP is also enabled, the IP pool for the clients can be any of the three

networks.

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ZyXEL Communications P-334WT Technické informace Strana 149