Cisco Router 860, 880 Series User Manual

 
PART 3
Configuring and Administering the 
Wireless Device 

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© 2008 Cisco Systems, Inc. All rights reserved.
Service Set Identifier (SSID)
In the role of an access point, a wireless device can support up to 16 SSIDs. In the role of a wireless 
bridge, the device is typically configured with one SSID. In the following sections, this module describes 
how to configure and manage service set identifiers (SSIDs) on the wireless device:
 Understanding SSIDs, page 1...

Service Set Identifier (SSID)
  Configuring SSIDs
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Configuring SSIDs
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SSIDs on Wireless Devices in Other Roles
In the role of a wireless bridge, typically the bridges are configured with one SSID, as a bridge does not 
associate wirelessly with clients. (A wireless device in the role of a workgroup bridge can associate with 
wireless clients and might be configured with multiple SSIDs. For a complete description of wireless 
device roles, see the “Roles and the Associations of Wireless...

Service Set Identifier (SSID)
  Configuring SSIDs
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Configuring SSIDs
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ssid buffalo    vlan 17
    authentication open
ssid buffalo
    vlan 7
    authentication open
The SSIDs appear to be identical, when in fact they are unique as a result of trailing spaces. This sample 
output from a show dot11 associations privileged EXEC command shows the spaces in the SSIDs:
SSID [buffalo] :
SSID [buffalo ] :
SSID [buffalo  ] : 
NoteThis command shows only the first 15 characters of the SSID. Use the...

Service Set Identifier (SSID)
  Guest Mode SSID
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Configuring SSIDs
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SSID Configuration Example
This example shows how to:
 Name an SSID
 Configure the SSID for RADIUS accounting
 Set the maximum number of client devices that can associate using this SSID to 15
 Assign the SSID to a VLAN
 Assign the SSID to a radio interface
AP# configure terminal
AP(config)# dot11 ssid batman
AP(config-ssid)# accounting accounting-method-list
AP(config-ssid)# max-associations 15AP(config-ssid)# vlan 3762...

Service Set Identifier (SSID)
  Including an SSID in an SSIDL IE
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Configuring SSIDs
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SSID Guest Mode Configuration Example
This example shows how to:
 Name an SSID
 Configure the SSID for guest mode
 Assign the SSID to a radio interface
AP# configure terminal
AP(config)# dot11 ssid batman
AP(config-ssid)# guest-modeAP(config-ssid)# exit
AP(config)# interface dot11radio 0
AP(config-if)# ssid batmanAP(config-if)#end
Including an SSID in an SSIDL IE
The access point beacon can advertise only one...

Service Set Identifier (SSID)
  Assigning IP Redirection for an SSID
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Configuring SSIDs
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Assigning IP Redirection for an SSID
IP redirection for an SSID on an access point redirects all packets sent from client devices associated to 
that SSID to a specific IP address. 
You can redirect all packets from client devices that are associated using an SSID, or you can redirect 
only packets that are directed to specific TCP or UDP ports. When you configure the access point to 
redirect only the...

Service Set Identifier (SSID)
  Assigning IP Redirection for an SSID
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Configuring SSIDs
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Guidelines for Using IP Redirection
Keep these guidelines in mind when using IP redirection:
 The access point does not redirect broadcast, unicast, or multicast BOOTP/DHCP packets from 
client devices.
 Access control list parameters take precedence over IP redirection.
Configuring IP Redirection
To configure IP redirection for an SSID, follow these steps, beginning in privileged EXEC mode:
NoteACL...

Service Set Identifier (SSID)
  Multiple Basic SSIDs
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Configuring SSIDs
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The following example shows how to configure IP redirection only for packets sent to the specific TCP 
and UDP ports specified in an ACL applied to the BVI1 interface. When the access point receives 
packets from client devices associated by using the SSID robin, it redirects packets sent to the specified 
ports to the IP address and discards all other packets:
AP# configure terminal
AP(config)# interface...