Wide Area Network with Wireless Technology

IT273_Assessment_4
Emma Ngoh-Efretuei

WIDE AREA NETWORK WITH WIRELESS TECHNOLOGY
Wide area technology widely known as WAN is simple and it involves interconnection of
Local Area Network (LAN). A WAN may be located entirely within a country or it may be
interconnected around the world. What it entirely mean is that, it covers a large geographical
area. It covers a great distance and may convey high volumes of data traffic released over
high speed phone lines, data link or even wireless communication structure such as satellite
(Zhao, Kubiatowicz & Joseph, 2011).
Lab 11.2.4 (point-to-point encapsulation and handshake authentication protocol)
In this case study, were going to study and analyze a scenario based on three labs. Lab 11.2.4,
that is lab one, we will have to configure serial links between two points, that is the routers.
Using serial ports, serial 1/0 will have an ip address 192.168.10.1 with a subnet mask of
255.255.255.0 while the other serial port 1/1 will have and ip address of 192.156.20.1 with a
subnet mask of 255.255.255.0 (Horst et al., 2015).

The colored area indicates the router configured using serial links, that is, Se 1/0 and Se 1/1.
PPP (Point-to-point encapsulation)
The next step will be to configure the serial links using point to point encapsulation between
the adjacent routers. PPP is a wide area network protocol that basically works at layer 2 by
encapsulating the frame to be able to convey the data over a different variety of physical links
such a serial links. It also gives more features such as HDLC and opens standards (Lloyd &
Simpson, 2012).
PPP operation is made using 3 unique parameters
 Link Control Protocol
 Encapsulation
 Network Control Protocol
Encapsulation is the major protocol that we are going to focus on. This is configured on the
serial interface of the router.
To configure routers using point-to-point encapsulation, the following commands are
followed:
Router (Config) # interface serial (Serial number)
Router (Config) # encapsulation ppp
CHAP
Challenge Handshake Protocol (CHAP) is an authentication that remotes the router to send a
challenge to the router that is trying to establish a communication with it. To configure chap,
the following command is used on the interface configuration: (Simpson, 2009)