Category: Configuration

Address Resolution Protocol (ARP) cache is a table where router or computer is keeping Layer 2 MAC addresses to Layer 3 IP addresses mappings which hw resolved lately. Without MAC to IP mapping the device would not be able to build and send IP packets.

Device discovers the MAC to IP mapping using ARP protocol Broadcast requests on the local subnet and saves the mapping in the ARP cache. If a device wants to send a packet to a neighbour, and it doesn’t have a corresponding MAC address, it sends out a broadcast ARP request packet. This broadcast packet reaches every device on the local subnet. Everybody will receive that ARP request packet but only the one device with the IP address mentioned in  ARP broadcast request packet responds back with an ARP response packet to complete the process.

If You want to create aliases on Cisco device for commonly used or complex commands we will show you how in this short configuration article.

You can create command aliases on your router with the alias command:

Get rid of the MAC flooding attacks on your switch and all kinds of other attacks that will mitigate you network security by implementing switch port security.
All about the issues to consider when configuring port security on a switch will be written here. Also we will show you how to configure port security on the Cisco IOS. It will be configuration of both static and dynamic port security.

Cisco Switch password recovery

After you set passwords to control access to the Cisco IOS CLI, you need to make sure you remember them. In case you have lost or forgotten access passwords, Cisco has a password recovery mechanism that allows administrators to gain access to their Cisco devices.

Cisco Internetwork Operating System and Juniper OS, what are they and all about these widely spread network device operating systems.

Cisco internetwork operating system has been confirmed as the world foremost networking infrastructure software. This software presents the perfect picture of the integration of modern technology. Cisco IOS is highly accommodating for hardware platform. This operating system is popular due to its functionality. At this time, bulk of active network systems such as small home, office router and world’s leading service provider’s networks system, all are using it in order to conduct different types of operations. You can say, Cisco Internetwork Operating System is the central and extensively influenced infrastructure software for the networking all over the world.