Cisco WIRELESS ACCESS POINT WAP4410N Instrukcja Użytkownika Pobierz pdf (Strona 11)

Planning Your Wireless Network

Protecting Your Network

WAP4410N Wireless-N Access Point with Power Over Internet Administration Guide 11

Protecting Your Network

Wireless networks are easy to find. Hackers know that to join a wireless network,

wireless networking products first listen for “beacon messages.” These messages

can be easily decrypted and contain much of the network’s information, such as

the network’s SSID (Service Set Identifier).

Here are steps you can take to protect your network:

Change the administrator’s password regularly

Every wireless networking device stores network settings (for example, SSID and

WEP keys) in its firmware.

Your network administrator is the only person who can change network settings. If

a hacker discovers the administrator’s password, then the hacker too can change

those settings.

Protect your SSID

• Disable SSID broadcasting. Most wireless networking devices give you the

option of broadcasting the SSID. While this option may be more convenient,

it allows anyone to log into your wireless network. This includes hackers.

So, don’t broadcast the SSID.

• Make the SSID unique. Wireless networking products come with a default

SSID set by the factory. Hackers know these defaults and can check them

against your network. Change your SSID to something unique and not

something related to your company or the networking products you use.

• Change the SSID often. Change your SSID regularly so that hackers who

gain access to your wireless network will have to begin again.

Enable MAC Address Filtering

MAC address filtering allows you to provide access to only those wireless nodes

with certain MAC addresses. Filtering makes it harder for a hacker to access your

network with a random MAC address.

Secure Your Network

• WEP—WEP is often looked upon as a cure-all for wireless security

concerns. This is overstating WEP’s ability. Again, this can only provide

enough security to make a hacker’s job more difficult.

There are several ways that WEP can be maximized:

- Use the highest level of encryption possible.

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Cisco WIRELESS ACCESS POINT WAP4410N Instrukcja Użytkownika Strona 11