Fabio Semperboni

Cisco EIGRP named, a better approach

The Enhanced Interior Gateway Routing Protocol can be configured using either the classic mode or the named mode. The classic mode is the old...

WPA2 is no more secure

WPA2 (Wi-Fi Protected Access 2) is a network security technology commonly used on Wi-Fi wireless networks. It's an upgrade from the original WPA technology,...

The power of prefix lists

Prefix lists are used in route maps and route filtering operations and can be used as an alternative to access lists in many route...

How to install Cisco ISE using USB or CIMC interface

In one of my last job activities, the customer has requested to reinstall the Cisco ISE appliance (SNS-3495). The first option, a DVD reader,...

Cisco will fail after 18 months

Recently, Cisco published a critical advisory concerning a clock signal component problem. Devices that contain the faulty component could potentially fail after 18 months...

Cisco 2017 Annual Cybersecurity Report

Cisco published the annual Cybersecurity report that presents the latest security industry advances designed to help organizations and users defend against attacks. The report...

How to access network devices via Radius server

Suppose you manage hundreds of Cisco devices; how can you connect and secure it against unauthorized access? You can use local username, but it...

DDNS: How to manage a device with a dynamic public IP

The DDNS aka Dynamic DNS is an old feature that several routers (non only Cisco devices) have implemented and, in some circumstances, it is very...

Nexus HSRP/VRRP active/active with vPC

In the article vPC aka Virtual PortChannel, I explained how vPC works and the benefits that it gives. However, there is another important feature...

vPC aka Virtual PortChannel

The vPC aka virtual Port Channel is a Cisco technology that presents both Nexus paired devices as a unique Layer 2 logical node to...