Linksys BEFW11S4 Manual De Usuario

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Appendix B: How to Ping Your ISP’s
E-mail and Web Addresses
Virtually all Internet addresses are configured with words or characters (i.e.,
www.linksys.com, www.yahoo.com, etc.) In actuality, however, these Internet
addresses are assigned to IP addresses, which are the true addresses on the
Internet. For example, www.linksys.com is actually 216.23.162.142. Entering
that into your web browser will bring up at the Linksys home page every time.
IP and web addresses, however, can sometimes be long and hard to remember.
Because of this, certain ISPs will shorten their server addresses to single words
or codes on their users’ web browser or e-mail configurations. If your ISP’s e-
mail and web server addresses are configured with single words (“www,” “e-
mail,” “home,” “pop3,” etc.) rather than whole Internet Addresses or IP
Addresses, the Router may have problems sending or receiving mail and
accessing the Internet. This happens because the Router has not been config-
ured by your ISP to accept their abbreviated server addresses.
The solution is to determine the true web addresses behind your ISP’s code
words. You can determine the IP and web addresses of your ISP’s servers by
“pinging” them.
Step One: Pinging an IP Address
The first step to determining your ISP’s web and e-mail server address is to
ping its IP address.
1.  Power on the computer and the cable or DSL modem, and restore the
network configuration set by your ISP if you have since changed it.
2.  Click Start, then Run, and type “command.” This will bring up the DOS
window.
N
No
otte
e:: If you don’t have your ISP’s web and e-mail IP addresses, you must
either get them from your ISP or follow these steps prior to connecting the
Router to your network.
Instant Wireless
®
Series
without the need for retransmission. To an unintended receiver, DSSS appears
as low power wideband noise and is rejected (ignored) by most narrowband
receivers. 
Would the information be intercepted while transmitting on air?  WLAN features
two-fold protection in security. On the hardware side, as with Direct
Sequence Spread Spectrum technology, it has the inherent security feature of
scrambling. On the software side, the WLAN series offers the encryption
function (WEP) to enhance security and access control. Users can set it up
depending upon their needs.
What is WEP?  WEP is Wired Equivalent Privacy, a data privacy mechanism
based on a 40/64 bit shared key algorithm, as described in the IEEE 802.11
standard. 
What is a MAC Address?  The Media Access Control (MAC) address is a unique
number assigned by the manufacturer to any Ethernet networking device,
such as a network adapter, that allows the network to identify it at the hard-
ware level.  For all practical purposes, this number is usually permanent.
Unlike IP addresses, which can change every time a computer logs on to the
network, the MAC address of a device stays the same, making it a valuable
identifier for the network.
If your questions are not addressed here, refer to the Linksys website,
www.linksys.com.
Wireless-B Broadband Router
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