This wireless network analyzer

Turn Off SSID Broadcasting

Yesterday I talked about the myth of the "software firewall" and how the term "software firewall" is misused to communicate what is actually known as a host-based firewall. The term "software firewall" is a network newbie term, and relates to misconceptions and lack of understand of how things work. Of course, if you're a reader of this security blog, you now know the that all firewalls run on software and that they are correctly categorized as network and host-based firewalls. That discussion made me think of another common network newbie error - again an error made because popular radio and print "computer writers" advocate it - disabling SSID broadcasting for wireless access points. Did you know that turning off SSID broadcasting is actually in violation of the design specifications for IEEE 802.11? That's right. You're actually breaking the rules of the 802.11abgn protocols when you turn it off. OK, suppose you don't care if you're breaking the rules of the protocol. The fact is that that you're not really protecting yourself by disabling SSID broadcasting. The reason for this is, even though you may enable encryption on your wireless connections to the WAP, there are still unencrypted frames transmitted that include the WAP's SSID. Any half-talented hacker can install a network sniffer that can read these encrypted frames and find out the SSID of your WAP. Along the same lines, forget about MAC address control. It never ceases to amazing me how often people advocate MAC address control, whether it's for firewall access or WAP access. It's very easy to change the MAC

Yesterday I talked about the myth of the "software firewall" and how the term "software firewall" is misused to communicate what is actually known as a host-based firewall. The term "software firewall" is a network newbie term, and relates to misconceptions and lack of understand of how things work. Of course, if you're a reader of this security blog, you now know the that all firewalls run on software and that they are correctly categorized as network and host-based firewalls.

That discussion made me think of another common network newbie error - again an error made because popular radio and print "computer writers" advocate it - disabling SSID broadcasting for wireless access points.

Did you know that turning off SSID broadcasting is actually in violation of the design specifications for IEEE 802.11? That's right. You're actually breaking the rules of the 802.11abgn protocols when you turn it off.

OK, suppose you don't care if you're breaking the rules of the protocol. The fact is that that you're not really protecting yourself by disabling SSID broadcasting. The reason for this is, even though you may enable encryption on your wireless connections to the WAP, there are still unencrypted frames transmitted that include the WAP's SSID. Any half-talented hacker can install a network sniffer that can read these encrypted frames and find out the SSID of your WAP.

You might also like
PS3 - Setting up a Wireless Internet Connection
PS3 - Setting up a Wireless Internet Connection
How to Set Up a Wireless Connection for an Xbox 360
How to Set Up a Wireless Connection for an Xbox 360
How To Connect a Blank SSID By PSP
How To Connect a Blank SSID By PSP
IdeaSynthesis LLC Hidden WiFi Connect
Mobile Application (IdeaSynthesis LLC)
  • See all configured WiFi networks.
  • Individually enable or disable connections to each configured WiFi network if the SSID is hidden.
  • Instantly open the WiFi network settings.
Neewer Ieee 802.11b/g Wireless Wifi Dongle Bridge for Xbox Ps3
Lighting (Neewer)
  • USB Wire has been added as a power source, power supply not required.
  • It can be used for any wireless network product, such as wireless router, IP camera
  • Support any VoIP ATAs and VoIP Phones;.Support Wifi model: AP Client;
  • I 802.11B/G compliant;.Support WEP (64 bit), WEP (128 bit), WPA, WPA2 Security access;
  • Support SSID broadcast.Frequency: 2.4Ghz
Sharing a Wireless Internet Connection
Sharing a Wireless Internet Connection
Cisco Basic Wireless LAN (WLAN) connection with Cisco
Cisco Basic Wireless LAN (WLAN) connection with Cisco ...
How To: Protect Your Wireless Connection
How To: Protect Your Wireless Connection
TP-Link TP-LINK TL-WR710N 150Mbps Wireless N Mini Pocket Router, Repeater, Client, 2 LAN Ports, USB Port for Charging and Storage
Personal Computer (TP-Link)
  • Multifunctional USB Port for File Sharing and Charging
  • Router, Repeater, Client, AP, Bridge Modes for Different Networking Demands
  • Built-in Power Adapter- No Bulky Power Adapter Needed
  • Portable and Compact-Ideal for Home and Travel Use
TP-Link TP-LINK TL-WA801ND Wireless N300 2T2R Access Point, 2.4Ghz 300Mbps, 802.11b/g/n, AP/Client/Bridge/Repeater, 2x 4dBi, Passive POE
CE (TP-Link)
  • Wireless N speed up to 300Mbps makes it ideal for high bandwidth consuming or interruption sensitive applications like video streaming, online gaming and VoIP
  • Fully compatible with 802.11b/g products Detachable antenna allows for stronger antenna upgrades
  • Standards: I 802.11n, I 802.11g, I 802.11b Interface: 1x 10/100 RJ45 Ethernet Port, Supporting PoE Antenna: 2x 4dBi Detachable Omni Directional Antenna
  • Wireless Signal Rates:11n: Up to 300Mbps(dynamic) 11g: Up to 54Mbps(dynamic) 11b: Up to 11Mbps(dynamic)
  • Frequency Range: 2.4-2.4835GHz Wireless Transmit Power: 20dBm(MAX) Modulation Technology: DBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM
  • Receiver Sensitivity:270M: -68dBm@10% PER 130M: -68dBm@10% PER 54M: -68dBm@10% PER
  • 11M: -85dBm@8% PER 6M: -88dBm@10% PER 1M: -90dBm@8% PER
  • Wireless: AP Mode Multi-SSID Mode AP Client Mode Repeater Mode (WDS / Universal) AP+ Bridge mode (point-to-point / point to Multi-point)
Wireless-N Wifi Repeater 300M US Plug
Single Detail Page Misc
  • Supports Repeater, AP mode, provides up to 300Mbps transmission rates.
  • Complies with I 802.11n, I 802.11g, I 802.11b standards.
  • Access to the Internet for computers, Support the various WIFI shared longer range
  • 100% brand new and high quality
Related Posts