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Characteristics of SSIDs

 

 

Introduction

Characteristics of SSIDs

 

Resolution

The SSID is a unique identifier that wireless networking devices use to establish and maintain wireless connectivity. The SSID can consist of up to 32 alphanumeric, case-sensitive, characters. Do not include spaces in your SSIDs. Create an SSID and enter SSID configuration mode for the new SSID.

There are a few restrictions when choosing a SSID.

These six characters are not allowed/invalid characters in an SSID:

 

  • +
  • ]
  • /
  • "
  • TAB
  • trailing spaces

 

The first character cannot contain the

  • !
  • #
  • ;

  

Creating an SSID Globally

In Cisco IOS Releases 12.3(2)JA and later, you can configure SSIDs globally or for a specific radio interface. When you use the dot11 ssid global configuration command to create an SSID, you can use the ssid configuration interface command to assign the SSID to a specific interface.

 

When an SSID has been created in global configuration mode, the ssid configuration interface command attaches the SSID to the interface but does not enter ssid configuration mode. However, if the SSID has not been created in global configuration mode, the ssid command puts the CLI into SSID configuration mode for the new SSID.

 

Note

SSIDs created in Cisco IOS Releases 12.3(7)JA and later become invalid if you downgrade the software version to an earlier release.

Beginning in privileged EXEC mode, follow these steps to create an SSID globally. After you create an SSID, you can assign it to specific radio interfaces.

 

Problem Type

Configure / Configuration issues

 

Products

Access point

 

Security Options

SSID

 

Product OS

IOS

VxWorks

Device Access Method

GUI Interface

Terminal Server / Console

 

Reference

Creating SSID Globally

http://cisco.com/en/US/customer/docs/wireless/access_point/12.4_3g_JA/configuration/guide/s43ssid.html#wp1017196Cisco IOS Software Configuration Guide for Cisco Aironet Access Points 12.3(7)JA

http://cisco.com/en/US/customer/docs/wireless/access_point/12.3_7_JA/configuration/guide/i1237sc.htmlFor VX Works Refer Basic Settings Section of Cisco Aironet Access Point Software Configuration Guide

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