Setting And Enabling Automatic Reauthentication Of The Host; Manually Reauthenticating The Host - Cisco WS-C2950SX-48-SI Configuration Manual

Configuring 802.1x Authentication on the Switch

Setting and Enabling Automatic Reauthentication of the Host

You can specify how often 802.1x authentication reauthenticates the host if you do so prior to enabling
automatic 802.1x host reauthentication. If you do not specify a time period prior to enabling host
reauthentication, 802.1x defaults to 3600 seconds (the valid values are from 1–65,535 seconds).
You can enable automatic 802.1x host reauthentication for hosts that are connected to a specific port. To
manually reauthenticate the host that is connected to a specific port, see the
the Host" section on page
To set how often 802.1x authentication reauthenticates the host and enable automatic 802.1x
reauthentication, perform this task in privileged mode:
Task
Step 1
Set the time constant for reauthenticating the
host.
Step 2 Enable reauthentication.
Step 3 Verify the 802.1x configuration.
This example shows how to set automatic reauthentication to 7200 seconds, enable 802.1x
reauthentication, and verify the configuration:
Console> (enable) set dot1x re-authperiod 7200
dot1x re-authperiod set to 7200 seconds
Console> (enable) set port dot1x 4/1 re-authentication enable
Port 4/1 re-authentication enabled.
Console> (enable) show port dot1x 4/1
Port
----- ------------------- ---------- ------------------- -------------
4/1
Port
----- ------------- -----------------
4/1

Manually Reauthenticating the Host

You can manually reauthenticate the host that is connected to a specific port at any time. When you want
to configure automatic 802.1x host reauthentication, see the
Reauthentication of the Host" section on page
To manually reauthenticate a host that is connected to a specific port, perform this task in privileged
mode:
Task
Manually reauthenticate the host that is connected
to a specific port.
This example shows how to manually reauthenticate the host that is connected to port 1 on module 4:
Console> (enable) set port dot1x 4/1 re-authenticate
Port 4/1 re-authenticating...
dot1x re-authentication successful...
dot1x port 4/1 authorized.
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide
31-10
31-10.
Auth-State BEnd-State Port-Control
connecting finished
Multiple Host Re-authentication
disabled enabled
Chapter 31
Command
set dot1x re-authperiod seconds
set port dot1x mod/port re-authentication enable
show port dot1x mod/port
Port-Status
auto unauthorized
"Setting and Enabling Automatic
31-10.
Command
set port dot1x mod/port re-authenticate
—
Release 8.1
Configuring 802.1x Authentication
"Manually Reauthenticating
78-15486-01