ZyAIR G-2000 Plus User’s Guide

Table 40 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 ZyAIR 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".

Max NAT/Firewall

Type a number ranging from 1 to 2048 to limit the number of NAT/firewall

Session Per User

sessions that a host can create.

Private (PPPoE and

This parameter determines if the ZyAIR 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 ZyAIR will broadcast its routing table

 

periodically.

 

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

 

receives.

 

When set to None, the ZyAIR 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 ZyAIR 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.

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Chapter 9 WAN