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1 ip alias setup, Figure 8 ip alias network example – ZyXEL Communications P-870MH-C1 User Manual

Page 29

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Chapter 3 Configuration Using the SMT

P-870MH-C1 User’s Guide

29

3.3.1 IP Alias Setup

IP alias allows you to partition a physical network into different logical networks over the
same Ethernet interface. The P-870MH-C1 supports three logical LAN interfaces via its single
physical Ethernet interface with the P-870MH-C1 itself as the gateway for each LAN network.
The following figure shows a LAN divided into subnets A, B, and C.

Figure 8 IP Alias Network Example

In Menu 3.2, you configure the first network. Move the cursor to Edit IP Alias field and press
[SPACEBAR] to choose Yes and press [ENTER] to display Menu 3.2.1 — IP Alias Setup as
shown next. Use Menu 3.2.1 to configure the second and third network.

"

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

Starting Address

This field specifies the first of the contiguous addresses in the IP address

pool.

Size of Client IP Pool This field specifies the size or count of the IP address pool.

TCP/IP Setup

IP Address

Enter the (LAN) IP address of your P-870MH-C1 in dotted decimal notation

IP Subnet Mask

Your P-870MH-C1 will automatically calculate the subnet mask based on the

IP address that you assign. Unless you are implementing subnetting, use the

subnet mask computed by the P-870MH-C1 (refer to the appendices for

more information).

Multicast

IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to

establish membership in a Multicast group. The P-870MH-C1 supports both

IGMP version 1 (IGMP-v1) and version 2 (IGMP-v2). Press the [

SPACE

BAR]

to enable IP Multicasting or select None to disable it.

Edit IP Alias

The P-870MH-C1 supports three logical LAN interfaces via its single

physical Ethernet interface with the P-870MH-C1 itself as the gateway for

each LAN network. Press [

SPACE BAR

] to change No to Yes and press

[

ENTER

] to display Menu 3.2.1.

When you have completed this menu, press [ENTER] at the prompt “

Press ENTER to Confirm

or ESC to Cancel:

” to save your configuration, or press [ESC] at any time to cancel.

Table 6 Menu 3.2 TCP/IP and DHCP Ethernet Setup (continued)

FIELD

DESCRIPTION