ZyXEL Communications P-324 User's Guide download pdf (Page 157)

P-2602HWNLI User’s Guide

Chapter 10 Network Address Translation (NAT) Screens 157

• Choose Full Feature if you have multiple public WAN IP addresses for your ZyXEL

Device.

10.3 NAT General Setup

You must create a firewall rule in addition to setting up SUA/NAT, to allow traffic from the

WAN to be forwarded through the ZyXEL Device. Click Network > NAT to open the

following screen.

Figure 83 NAT General

The following table describes the labels in this screen.

Table 51 NAT General

LABEL DESCRIPTION

Active

Network

Address

Translation

(NAT)

Select this check box to enable NAT.

SUA Only Select this radio button if you have just one public WAN IP address for your ZyXEL

Device.

Full Feature Select this radio button if you have multiple public WAN IP addresses for your ZyXEL

Device.

Max NAT/

Firewall

Session Per

User

When computers use peer to peer applications, such as file sharing applications, they

need to establish NAT sessions. If you do not limit the number of NAT sessions a single

client can establish, this can result in all of the available NAT sessions being used. In

this case, no additional NAT sessions can be established, and users may not be able to

access the Internet.

Each NAT session establishes a corresponding firewall session. Use this field to limit

the number of NAT/firewall sessions each client computer can establish through the

ZyXEL Device.

If your network has a small number of clients using peer to peer applications, you can

raise this number to ensure that their performance is not degraded by the number of

NAT sessions they can establish. If your network has a large number of users using

peer to peer applications, you can lower this number to ensure no single client is using

all of the available NAT sessions.

Apply Click Apply to save your changes to the ZyXEL Device.

Cancel Click Cancel to reload the previous configuration for this screen.

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ZyXEL Communications P-324 User's Guide Page 157