286
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Radio Settings
Enabling and Disabling Public Secure Packet Forwarding
DETAILED STEPS
Enabling and Disabling Public Secure Packet Forwarding
Public Secure Packet Forwarding (PSPF) prevents client devices that are associated to an access point
from inadvertently sharing files or communicating with other client devices that are associated to the
access point. PSPF provides Internet access to client devices without providing other capabilities of a
LAN. This feature is useful for public wireless networks like those installed in airports or on college
campuses.
Note
To prevent communication between clients associated to different access points, you must set up
protected ports on the switch to which the wireless devices are connected. See the
Protected Ports” section on page 287
for instructions on setting up protected ports.
To enable and disable PSPF using command-line interface (CLI) commands on the wireless device, you
use bridge groups. You can find a detailed explanation of bridge groups and instructions for
implementing them in this document:
•
Cisco IOS Bridging and IBM Networking Configuration Guide, Release 12.2
. Click this link to
browse to the Configuring Transparent Bridging chapter:
PSPF is disabled by default. To enable PSPF, follow these steps, beginning in privileged EXEC mode.
SUMMARY STEPS
1.
configure terminal
2.
interface dot11radio
{
0
|
1
}
3.
bridge-group
group
port-protected
4.
end
5.
copy running-config startup-config
Command
Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
interface dot11radio
{
0
|
1
}
Enters interface configuration mode for the radio interface. The
802.11g/n 2.4-GHz radio is radio 0.
The 802.11n 5-GHz radio is radio 1.
Step 3
payload-encapsulation
{
snap
|
dot1h
}
Sets the encapsulation transformation method to RFC 1042
(
snap
) or 802.1h (
dot1h
, the default setting).
Step 4
end
Returns to privileged EXEC mode.
Step 5
copy running-config startup-config
(Optional) Saves your entries in the configuration file.
