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New Member

Disable SSID broadcast on Aironet 350

I only have four clients to this access point, which I have hard coded the SSID on to them. I want to keep programs like NetStumbler from knowing the AP is there. I have WEP, TKIP, and MIC installed for security I just figure if you can keep someone from knowing that an AP exists you have won half the battle. Is this possible?



Cisco Employee

Re: Disable SSID broadcast on Aironet 350

Turning on broadcast SSID on AP allows AP to send SSID in beacon packets .

Beacon is like keepalive packets . Clients like XP , searches for any wireless

network in nearby area to connect to it . So for such clients it is useful to turn

on broadcast SSID . I guess your dlink also worked on same principle and got connected .

As SSID is transmitted in every beacon it is consider as security risk and document suggest not to turn on broadcast ssid .

SSID is NOT for security reason although many people consider ssid as security measure .

Even you turn off broadcast ssid in beacon packet by turning off ssid on ap ,

probe request and proble response will always contain the SSID . there is no

way to hide the ssid .

You can reduce the coverage area ( or cell ) by reducing the transmitt power .

This is also one of the security step .


New Member

Re: Disable SSID broadcast on Aironet 350

I use the WEB to mange my AP 350s, if you use the WEB interface go to AP350 Radio Hardware page and you will see a line "Allow Broadcast SSID to Associate" with a radial button for yes or no. Select no will stop the AP from broadcasting the SSID.


New Member

Re: Disable SSID broadcast on Aironet 350

Thanks for your reply Gary

I have that feature turned off, but it still does it.