My Netwok Dictionary

A broadcast is a data packet that is destined for multiple hosts. Broadcasts can occur at the data link layer and the network layer. Data-link broadcasts are sent to all hosts attached to a particular physical network. Network layer broadcasts are sent to all hosts attached to a particular logical network. The Transmission Control Protocol/Internet Protocol (TCP/IP) supports the following types of broadcast packets:
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This case study addresses the issue of integrating Routing Information Protocol (RIP) networks with Open Shortest Path First (OSPF) networks. Most OSPF networks also use RIP to communicate with hosts or to communicate with portions of the internetwork that do not use OSPF. Cisco supports both the RIP and OSPF protocols and provides a way to exchange routing information between RIP and OSPF networks. This case study provides examples of how to complete the following phases in redistributing Read the rest of this entry »

The Routing Information Protocol (RIP) is a dynamic routing protocol used in local and wide area networks. As such it is classified as an interior gateway protocol (IGP) using the distance-vector routing algorithm. It was first defined in RFC 1058 (1988). The protocol has since been extended several times, resulting in RIP Version 2 (RFC 2453). The original version is now known as RIP. Both versions are still in use today, however, they are considered technically obsoleted by more advanced techniques, such as Read the rest of this entry »

Remote PC Access does not get much easier than GoToMyPC. Setup of GoToMyPC takes just 2 minutes. Once your computer is enabled, you can access it at any time from anywhere by logging in to the GoToMyPC website. You can access your office pc or another personal pc just as if you were sitting at your desk and stay connected even though you may be thousands of miles away. You have full control of the computer and all files, programs and network resources available on the machine. Read the rest of this entry »

This document will give you the bare minimum to provide RADIUS authentication to your Cisco Devices using Microsoft Internet Authentication Service (IAS) RADIUS server. Using RADIUS on your Microsoft server to authenticate Cisco devices allows you to use the same usernames and passwords on your Windows servers and Cisco devices. Read the rest of this entry »

For remote administration of Cisco Routers and Switches (infact for any other device like a unix,linux or a solaris seerver) is not very secure as the data including the passwords are sent in clear text. It will only be a matter of time for a malicous attacker who can sniff the packets to gain access to the passwords and infact the whole network. Read the rest of this entry »

To configure Site-to-Site VPN the routers used must support IPSec. Most of Cisco routers do. Another need is that both sides use a static public IP address to connect to the Internet.

We will go through the steps to be done on one side and the same steps must be repeated on the other side too. The encryption of data will depend on a shared-key. This way, we will not need specialized CAs or RSA methodologies. Read the rest of this entry »