ISAKMP stands for Internet Security Association and Key Management Protocol. ISAKMP is a protocol used for establishing the security associations and the cryptographic keys. A security association is used to support secure communication and it refers to the establishment of the shared security information between two networks. Security Associations contain all the information required for various security services and ISAKMP…
Tag: Protocol
Cisco Ccna Ccnp Certification Exam Review Protocol Basics
To earn your Cisco CCNA certification and pass the BSCI CCNP exam, you have to know your protocol basics like the back of your hand! To help you review these important concepts, here’s a quick look at the basics of RIPv1, RIPv2, IGRP, and EIGRP. RIPv1: Broadcasts updates every 30 seconds to the address 255.255.255.255. RIPv1 is a classful protocol,…
What Is Udp
UDP, or User Datagram Protocol, is one of the several core protocols of the standard Internet protocol suite. By making use of UDP, it is possible for programs that are found on various computers connected by a network to send short messages back and forth. Known as datagrams, these quick and easy message make use of very little in the…
Icmp
ICMP is a required element to implement Internet Protocol. ICMP is a control protocol which means that it does not carry any application data, but data about the status of the network itself. ICMP is used to report: – Errors in the core communications of the network applications – Availability of remote hosts – Network traffic and congestion Technical details:…
The Osi Reference Model And Tcp Ip Architecture
The model represents a standard for connecting network systems. The model does not specify the ways in which the individual systems are connected but serves as a description of its layers, functions and services. The OSI Model consists of seven layers, each of which, as was already stated, receives the services of the layer below and provides services to the…
Cisco Ccnp Bcsi Exam Tutorial Broadcasts And The Ip Helper Address Command
While routers accept and generate broadcasts, they do not forward them. This can be quite a problem when a broadcast needs to get to a device such as a DHCP or TFTP server that’s on one side of a router with other subnets on the other side. If a PC attempts to locate a DNS server with a broadcast, the…
Cisco Ccna Exam Tutorial Troubleshooting Directly Connected Serial Interfaces
CCNA exam success depends largely on noticing the details, and this is especially true of configurations involving directly connected serial interfaces. And of course, it’s not enough to notice these details – you’ve got to know what to do about them! A Cisco router is a DTE by default, but directly connecting two DTEs with a DCE/DTE cable is not…
What Exactly Is Web 2 0 An Introduction
When the internet first launched in 1969, it was a far different beast from that which its users know it as today. As opposed to the huge information resource center that it now is, the web from that was created almost forty years ago was part of an American program for space research called ARPA, or Advanced Research Projects Agency.…