Prestige 334 User’s Guide

 

Table 19 WAN: IP

 

 

 

 

 

 

 

LABEL

DESCRIPTION

 

 

 

 

 

 

Network Address

Network Address Translation (NAT) allows the translation of an Internet

 

 

Translation

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).

 

 

 

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. When you select Full

 

 

 

Feature you must configure at least one address mapping set!

 

 

 

For more information about NAT refer to the NAT chapter in this User's Guide.

 

 

 

 

 

 

Metric (PPPoE and

This field sets this route's priority among the routes the Prestige uses.

 

 

PPTP only)

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

This parameter determines if the Prestige will include the route to this remote

 

 

PPTP only)

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 will be

 

 

 

propagated to other hosts through RIP broadcasts.

 

 

RIP Direction

RIP (Routing Information Protocol) allows a router to exchange routing

 

 

 

information with other routers. The RIP Direction field controls the sending

 

 

 

and receiving of RIP packets.

 

 

 

Choose Both, None, In Only or Out Only.

 

 

 

When set to Both or Out Only, the Prestige will broadcast its routing table

 

 

 

periodically.

 

 

 

When set to Both or In Only, the Prestige will incorporate RIP information that

 

 

 

it receives.

 

 

 

When set to None, the Prestige will not send any RIP packets and will ignore

 

 

 

any RIP packets received.

 

 

 

By default, RIP Direction is set to Both.

 

 

 

 

 

 

RIP Version

The RIP Version field controls the format and the broadcasting method of the

 

 

 

RIP packets that the Prestige sends (it recognizes both formats when

 

 

 

receiving).

 

 

 

Choose RIP-1,RIP-2B or RIP-2M.

 

 

 

RIP-1is universally supported; but RIP-2carries more information. RIP-1 is

 

 

 

probably adequate for most networks, unless you have an unusual network

 

 

 

topology. Both RIP-2Band RIP-2Msends the routing data in RIP-2 format; the

 

 

 

difference being that RIP-2B uses subnet broadcasting while RIP-2M uses

 

 

 

multicasting. Multicasting can reduce the load on non-router machines since

 

 

 

they generally do not listen to the RIP multicast address and so will not receive

 

 

 

the RIP packets. However, if one router uses multicasting, then all routers on

 

 

 

your network must use multicasting, also. By default, the RIP Version field is

 

 

 

set to RIP-1.

 

Chapter 6 WAN Screens

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