Category Archives: Network Security

Understanding PPP – PAP Explained with Examples.

What is the Password Authentication Protocol? The Password Authentication Protocol (PAP) is a simple authentication protocol used in networking environments. It operates by having the user send a username and password to the server, which are then verified against a known list of usernames and passwords. If it is accepted, the connection is allowed. PAP is not interactive… Read More »

Understanding Remote Access VPN- Explained with Examples.

What is a Remote-access VPN? In Remote-access VPNs, individual hosts or clients, such as telecommuters, mobile users, and extranet consumers, can access a company network securely over the Internet. Each host typically has VPN client software loaded or uses a web-based client. A remote-access VPN host or client typically has VPN client software. Whenever the host tries to send… Read More »

Understanding SNMP – Explained with Examples.

What is SNMP? SNMP is an application layer protocol that provides a message format for communication between what are termed managers and agents on a network. The Simple Network Management Protocol (SNMP) is a widely used protocol for network management. It enables the monitoring and management of network devices like routers, switches, and servers from a central location. It uses a… Read More »

Static and Dynamic NAT – Explained with Examples.

What is Static and Dynamic NAT? Both static and dynamic NAT require that enough public addresses are available to satisfy the total number of simultaneous user sessions. What is Static NAT Static NAT also called inbound mapping, is the process of mapping an unregistered IP address to a registered IP address on a one-to-one basis. The unregistered or… Read More »

What is VTY Telnet Access?

VTY (Virtual Teletype) Telnet access refers to a method of remote access to a network device, such as a router or switch, through the Telnet protocol using virtual terminal lines. This method is widely used in network management. Let’s break down these concepts for a comprehensive understanding: Virtual Teletype (VTY): VTY is a virtual port on a network… Read More »