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Ways to Secure Your Wireless Network

Solution

To improve the security of your home network, Cox recommends that you activate the security features of your wireless network by enabling encryption on your wireless router or gateway. Using a secured wireless network protects both you and Cox from potential abuse.

The following are common examples of abuse.

  • Unauthorized users may use your network to download illegal materials that could be traced back to your IP address.
  • Unauthorized users may access your files and personal information, such as credit card numbers, bank account information, and passwords.
  • Unauthorized users may use your network to send spam or release viruses.

Per the Cox Acceptable Use Policy, Cox Communications requires that all customers with a wireless network enable security. It is an easy process that takes only a few minutes, and protects both you and Cox.

Supported Recommendations

The following table provides different methods that you can take to better secure your wireless network. Both recommendations and suggestions are included.

Action Details
Enable high level of encryption

There are several encryption methods that can be used to secure a wireless network. Depending on the age and type of your device you may have one or more encryption methods at your disposal.

Recommend: Enable WPA encryption.

  • Wi-Fi Protected Access (WPA / WPA2) provides much better protection and is also easier to use. WPA support is built into new operating systems and virtually all modern wireless hardware and operating systems. Security is provided by the use of a passphrase that can be randomly generated or customer generated from a combination of letters and numbers. A more recent version, WPA2, is found in newer hardware and provides even stronger encryption.
  • Wi-Fi Protected Setup (WPS) provides security using the WPA encryption type and adds easy network setup and connection when available. To use WPS, your device must support WPS and your operating system and hardware must support WPA encryption. WPS lets you use push buttons or PINS instead of manually locating the network name or Service Set Identifier (SSID) and security passphrase. WPS can set up a random network name (SSID), and strong WPA encryption for compatible devices and operating systems.
Enable some level of encryption when WPA is not available If you find that some of your wireless devices only support Wired Equivalent Privacy (WEP) encryption, like Media Players, Personal Digital Assistants (PDAs), and Digital Video Recorders (DVRs), it is still important to enable encryption.

Recommend: Enable WEP encryption as some encryption is better than no encryption.

In spite of the issues with using WEP encryption, it is still better than having no encryption at all. When using WEP, use an encryption key that is extremely hard to guess. Refrain from using a WEP key like a string of the same or consecutive numbers. Because of the security issues, when using WEP encryption it is also highly advisable to change the encryption keys often. Additionally, when using WEP encryption, enabling Media Access Control (MAC) filtering can provide another layer of protection (See Turn on MAC filtering below).

Note: Many newer operating systems do not support WEP encryption. Older devices that only support WEP may need to be upgraded.
Create a strong admin password Many devices have an Administrator username and password that are needed to access the device and modify any configuration settings. Most of these devices use a weak default password while others do not have a default password at all.

Recommend: Change the default Administrator password.

As you will likely not use this login information very often, be sure to create a record of it and store it in a safe place. Should you forget this information, the only way to access the device may be to reset it to factory default settings. Resetting to factory default will also wipe away any configuration changes you have made. (See Save your configuration).
Turn off remote administration Most wireless devices have the ability to be remotely operated or administered via the Internet. This feature can allow almost anyone to find and access the settings for your device.

Recommend: Turn off remote administration.

Unless you absolutely need this capability, it is best to disable Remote Administration; doing so can help prevent unauthorized access and use of your system.
Save your configuration Many devices have the ability to save a file containing your device configuration to a location on your network.

Recommend: Save your configuration changes.

Saving this information after any configuration changes will allow you to re-establish your custom settings should they get lost due to some unforeseen situation such as having to reset your device to the factory settings due to a forgotten Administrator password. Always save your configuration changes to a file on the desktop, flash drive, or backup disc.

It is also recommended that you write the device password, SSID, and wireless key / passphrase on a piece of paper and attach it to the device for future reference.

Unsupported Suggestions

The following table provides examples of unsupported security suggestions.

Action Details
Turn off broadcasting Many devices automatically and continuously broadcast the network's name or SSID. This makes setting up wireless clients extremely convenient since you can locate a Wireless network without having to know what it is called. The drawback to this is that this also makes your Wireless network visible to any wireless devices within range.

Turning off SSID Broadcast for your network makes it invisible to casual detection by your neighbors and passers-by. When using this method of securing your network, you must remember to manually enter your SSID when connecting a wireless connection or turn SSID Broadcasting back on temporarily. This could make setting up your wireless clients very difficult if you do not remember the SSID or if you do not know how to manually enter it.

Some computers and devices will not connect unless the SSID broadcast is enabled. It is recommended that you test all wireless devices you want to connect in order to determine if this option will work for you.
Turn on MAC filtering Another security measure that should only be used with encryption is MAC address filtering. MAC addresses are unique to specific network adapters and devices so by enabling MAC address filtering you can manage access to your network.

Turning on MAC address filtering can be used to either allow or block access to network devices depending on the setting; either block or allow but not both.

Using MAC address filtering requires that you manually enter the 12-character MAC address of every device that will be managed on your network. If you frequently add new devices to your network, MAC address filtering can become inconvenient and time consuming.

Because MAC addresses can be imitated by a knowledgeable person MAC address filtering should only be used in conjunction with other security measures.

Manufacturer Contacts

Routers and gateways are different, so the steps to secure wireless networks vary. Below is contact information for common device manufacturers to help you configure and secure your network. If your device manufacturer is not listed, refer to the user's guide or contact the manufacturer directly.

Manufacturer Phone Number Support Website
ActionTec 888-436-0657 www.actiontec.com/support
ARRIS / Motorola 877-466-8646 www.arris.com/support/
Belkin 800-223-5546 www.belkin.com/us/support
Cisco 800-553-2447 www.cisco.com/support
Linksys 800-326-7114 www.linksys.com/us/support/
Netgear 888-638-4327 https://support.netgear.com/
SMC 800-762-4968 www.smc.com/en-global/faq/
Trendware 866-845-3673 www.trendnet.com/support/
ViewSonic 800-688-6688 www.viewsonic.com/us/customer-service
Zoom 617-753-0963 www.zoomtel.com/techsupport/index.html
ZyXel 800-255-4101 www.zyxel.com/us/en/support/support_landing.shtml

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