Motorola WS5100 manual Security Features, Encryption and Authentication

1-18WS5100 Series Switch System Reference Guide

1.2.5 Security Features

The switch security can be classified into wireless security and wired security.

The switch includes the following Wireless Security features:

•Encryption and Authentication

•MU Authentication

•Secure Beacon

•MU to MU Allow

•MU to MU Disallow

•Switch-to-Wired

•802.1x Authentication

•IEEE 802.1AB LLDP

•WIPS

•Rogue AP Detection

The switch includes the following wired security features:

•ACLs

•Local Radius Server

•IPSec VPN

•NAT

•Certificate Management

1.2.5.1Encryption and Authentication

The switch can implement the following encryption and authentication types:

•WEP

•WPA

•WPA2

•Keyguard-WEP

WEP

Wired Equivalent Privacy (WEP) is an encryption scheme used to secure wireless networks. WEP was intended to provide comparable confidentiality to a traditional wired network, hence the name. WEP had many serious weaknesses and hence was superseded by Wi-Fi Protected Access (WPA). Regardless, WEP still provides a level of security that can deter casual snooping. For more information on configuring WEP for a target WLAN, see Configuring WEP 64 on page 4-40or Configuring WEP 128 / KeyGuard on page 4-41.

WEP uses passwords entered manually at both ends (Pre Shared Keys). Using the RC4 encryption algorithm, WEP originally specified a 40-bit key, but was later boosted to 104 bits. Combined with a 24-bit initialization vector, WEP is often touted as having a 128-bit key.