Linksys WRT54GS-FR User's Manual - Page 21

Instant Wireless® Series Default Transmit Key Select which WEP key (1-4) will be used when the Router sends data. Make sure the receiving device is using the same key. WEP Encryption Select the level of WEP encryption you wish to use, 64bit 10 hex digits or 128-bit 26 hex digits. Higher encryption levels offer higher levels of security, but due to the complexity of the encryption, they may decrease network performance. Passphrase Instead of manually entering WEP keys, you can enter a Passphrase. This Passphrase is used to generate one or more WEP keys. It is case-sensitive and should not be longer than 16 alphanumeric characters. (This Passphrase function is compatible with Linksys wireless products only. If you want to communicate with non-Linksys wireless products, enter the WEP key manually on the non-Linksys wireless products.) After you enter the Passphrase, click the Generate button to create WEP keys. Keys 1-4 WEP keys enable you to create an encryption scheme for wireless LAN transmissions. If you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field blank, and do not enter all zeroes. These are not valid key values.) If you are using 64-bit WEP encryption, then the key must be exactly 10 hexadecimal characters in length. If you are using 128-bit WEP encryption, then the key must be exactly 26 hexadecimal characters in length. Valid hexadecimal characters are "0"-"9" and "A"-"F". Note: All Wireless-G and 802.11b devices in your network must use the same Passphrase or WEP key. Check all the values, and click the Apply button to save your WEP settings. To cancel any changes you've entered on this page, click the Cancel button. To get more information about the features, click the Help button. 34 Wireless-G Broadband Router Security The Security screen allows you to change the Router's security settings. You should change the factory default password, which is admin, to your own as soon as possible. All users who try to access the Router's web-based utility or Setup Wizard will be prompted for the Router's password. Figure 6-8 Router Password The new Password must not exceed 32 characters in length and must not include any spaces. Enter the new Password in the second field to confirm it. VPN Pass-Through Virtual Private Networking (VPN) is typically used for work-related networking. For VPN tunnels, the Router supports IPSec PassThrough and PPTP Pass-Through. IPSec - Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Router, IPSec Pass-Through is enabled by default. To disable IPSec Pass-Through, uncheck the box next to IPSec. 35