What's new in Version 1.92
fixed the design connections checking issue
fixed password issue with commands:
set dot1x user WORD password WORD
set radius user WORD password WORD
added privileged commands:
show dot1x
show dot1x all
show dot1x all summary
Switch global commands:
dot1x system-auth-control
aaa authentication dot1x default enable
aaa authentication dot1x default local
aaa authentication dot1x default group radius
Switch interface commands:
dot1x port-control force-authorized
dot1x port-control force-unauthorized
dot1x port-control auto
authentication port-control force-authorized
authentication port-control force-unauthorized
authentication port-control auto
no authentication port-control
dot1x pae authenticator
no dot1x pae
Other minor fixes and improvements
In a Cisco environment, a RADIUS (Remote Authentication Dial-In User Service) server is commonly used to authenticate users for various network services, one of which is network access. This lab introduces using a RADIUS server to allows for centralized user authentication. Instead of maintaining separate user accounts and authentication databases on each network device. All authentication requests are sent to the RADIUS server. This centralization simplifies administration and ensures consistent authentication across the network.
Cisco AAA (Authentication, Authorization, and Accounting) local authentication is a security feature that allows network administrators to control access to network devices and services by requiring users to provide valid credentials before accessing them. With local authentication, administrators can define user accounts and passwords locally on a network device, rather than relying on external authentication servers.
To configure Cisco AAA local authentication, follow these steps:
Update 1.90 fixes the design saving issue. We appreciate you patience.
In this tutorial we look at errdisable recovery and highlight it on the PocketCLI Network Simulator. Errdisable recovery is a feature on Cisco switches that allows network administrators to automatically activate an err-disabled port after a specified timeout period.
A common cause for an interface to be placed in err-disable status is a port security violation. Please reference the tutorial Port Security - Configuration for more details. The port in the err-disabled state needs an administrator to manually restore the port back to operation. Activation of the port will be accomplished by issuing the command shutdown followed by the no shutdown command.
The topology below will be used for this tutorial:
By default, all Cisco switches have Spanning Tree Protocol (STP) enabled. However, you can choose to configure STP on your switches manually.
STP is used by switches to prevent loops (broadcast storms) from disrupting local area networks. It ensures that there is only one logical path between all destinations on the network, which is achieved by disabling unwanted paths and blocking ports that could cause the loop.
A switch blocks a port when it detects a loop on the network. On the network segment with switches, one switch is elected to be Root Bridge on the network. Other switches on the network then select one of its ports as Root Port. Also, a Designated Port is chosen on each segment and any other ports are put in Blocking state. We shall follow these same procedure in our manual configurations.
The lab below is used in this tutorial: