1x and wpa overview, Network address translation overview, 4 network address translation overview – ZyXEL Communications PRESTIGE 2602HW User Manual

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Prestige 2602HW Series Quick Start Guide

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Table 4 Wireless LAN: MAC Address Filter

LABEL

DESCRIPTION

Action

Define the filter action for the list of MAC addresses in the MAC Address
table.

Select Deny Association to block access to the router, MAC addresses not
listed will be allowed to access the router

Select Allow Association to permit access to the router, MAC addresses
not listed will be denied access to the router.

MAC
Address

Enter the MAC addresses (in XX:XX:XX:XX:XX:XX format) of the wireless
station that are allowed or denied access to the Prestige in these address
fields.

6.3 802.1x and WPA Overview

Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i security specification
draft. Key differences between WPA and WEP are user authentication and improved
data encryption. WPA applies IEEE 802.1x and Extensible Authentication Protocol
(EAP) to authenticate wireless clients using an external RADIUS database. You can’t
use the Prestige’s local user database for WPA authentication purposes since the local
user database uses MD5 EAP, which cannot be used to generate keys.

WPA improves data encryption by using Temporal Key Integrity Protocol (TKIP),
Message Integrity Check (MIC) and IEEE 802.1x. Temporal Key Integrity Protocol
(TKIP) uses 128-bit keys that are dynamically generated and distributed by the
authentication server. It includes a per-packet key mixing function, a Message Integrity
Check (MIC) named Michael, an extended initialization vector (IV) with sequencing
rules, and a re-keying mechanism.

To change your Prestige’s authentication settings, click the Wireless LAN link under
Advanced Setup
and then the 802.1x/WPA tab.

The screen varies by the wireless

port control and key management protocol you select.

6.4 Network Address Translation Overview

NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP
address of a host in a packet. For example, the source address of an outgoing packet,
used within one network is changed to a different IP address known within another
network.

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