Avaya Business Secure Router 252 Configuration - Basics Instrukcja Użytkownika Pobierz pdf (Strona 115)

Chapter 7 WAN screens 115

Nortel Business Secure Router 252 Configuration — Basics

Table 19 describes the fields in Figure 27.

Table 19 WAN: IP

Label Description

Get automatically

from ISP

Select this option if your ISP did not assign you a fixed IP address.

This is the default selection.

Use fixed IP

address

Select this option if your ISP assigned a fixed IP address.

My WAN IP

Address

Enter your WAN IP address in this field if you selected Use Fixed

IP Address.

Network Address

Translation

With Network Address Translation (NAT), the router translations an

Internet protocol address used within one network (for example, a

private IP address used in a local network) to a different IP address

known within another network (for example, a public IP address

used on the Internet). NAT is available when the device is in routing

mode.

Choose None to disable NAT.

Choose SUA Only if you have a single public IP address. SUA

(Single User Account) is a subset of NAT that supports two types of

mapping: Many-to-One and Server.

Choose Full Feature if you have multiple public IP addresses. Full

Feature mapping types include: One-to-One, Many-to-One (SUA/

PAT), Many-to-Many Overload, Many- One-to-One and Server.

After you select Full Feature, you must configure at least one

address-mapping set.

Metric ( This field sets this route's priority among the routes the Business

Secure Router uses.

The metric represents the cost of transmission. A router determines

the best route for transmission by choosing a path with the lowest

cost. RIP routing uses hop count as the measurement of cost, with

a minimum of 1 for directly connected networks. The number must

be between 1 and 15; a number greater than 15 means the link is

down. The smaller the number, the lower the cost.

Private (PPPoE and

PPPoA only)

This parameter determines if the Business Secure Router includes

the route to this remote node in its RIP broadcasts. If set to Yes, this

route is kept private and not included in RIP broadcast. If No, the

route to this remote node is propagated to other hosts through RIP

broadcasts.

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