IOS command modes
We’ve already learned that IOS has three main command modes: the user exec, privileged exec, and the global configuration modes. Each of these modes serves … Read more
Cisco IOS (Internetwork Operating System) overview
IOS (Internetwork Operating System) is a multitasking operating system used on most Cisco routers and switches. IOS has a command-line interface with the predetermined number of … Read more
ICMP (Internet Control Message Protocol)
ICMP (Internet Control Message Protocol) is a network layer protocol that reports errors and provides information related to IP packet processing. Network devices use this protocol … Read more
APIPA (Automatic Private IP Addressing)
Automatic Private IP Addressing is a feature in operating systems (such as Windows). It enables computers to automatically self-configure an IP address and subnet mask … Read more
Network Time Protocol (NTP)
Network Time Protocol is an application layer protocol used for clock synchronization between hosts on a TCP/IP network. The goal of NTP is to ensure … Read more
HTTP and HTTPS
This article will throw some light on HTTP (Hypertext Transfer Protocol) & HTTPS (Hypertext Transfer Protocol Secure) HTTP (Hypertext Transfer Protocol) It is an client-server … Read more
Simple Network Management Protocol (SNMP)
Simple Network Management Protocol (SNMP) is an application layer protocol that is used for network device management. This protocol can collect and manipulate valuable network information … Read more
FTP (File Transfer Protocol) & TFTP (Trivial File Protocol)
FTP File Transfer Protocol is a network protocol used to transfer files from one computer to another over a TCP network. Like Telnet, it also … Read more
Telnet & SSH
Telnet Telnet is a network protocol that allows a user to communicate with a remote device. It is a virtual terminal protocol which network administrators … Read more