Explanation of Various types of networking Devices, Implementation of various kinds of Routing Protocols, etc.

1. Networking
Submitted by-
Tarun Jaiswal
048
CSE (2K14)

2. Network
A network is a set of devices (often referred to as nodes)
connected by communication links. A node can be a
computer, printer, or any other device capable of sending
and/or receiving data generated by other nodes on the
network.

3. Types of Network
Local Area Network
 connects network devices over a
relatively short distance.
 Such as office building, school, or home.
Campus Area Network
 Collection of multiple LANs but smaller
than a MAN.
 Such as a university or local business
campus.

4. Types of Network Continued…
 used for data transmission amongst devices such
as computers, telephones, tablets and personal digital
assistants.
 can be used for communication amongst the personal
devices themselves (interpersonal communication).
Wide Area Network
 a geographically-dispersed collection
of LANs.
 The Internet is the largest WAN.
Personal Area Network

5. Types of Network Continued…
 A network spanning a physical
area larger than a LAN but smaller
than a WAN, such as a city.
 A MAN is typically owned and
operated by a single entity such
as a government body or large
corporation.
Metropolitan Area Network

6. Network Devices
an electronic device that amplifies the
signal it receives.
Hub
 Used to connect multiple network hosts.
 It sends data to all of its ports connected.
 Not so secure and safe.
 Slower and most congested.
Repeater

7. Network Devices Continued…
Bridge
 A bridge connects two subnetworks as
a part of the same network.
 Eg:- two different labs or two different
floors connected by a bridge
Switch
 Used to connect multiple network hosts.
 Intelligent than Hub.
 It filters data packets and then forwards it
to the valid destination port.

8. Network Devices Continued…
Router
 A router is a network device which is responsible for
routing traffic from one to another network.
 These two networks could be a private company
network to a public network.

9. Router Interfaces
Serial port
 This interface is used to connect with another router.
Ethernet port
 This interface is used to connect with switch or Hub.
Auxiliary port
 This interface is used to connect with modem or dongle.

10. Router Interfaces Continued…
Loopback Interface
 It is a logical and virtual.
 It is not a physical interface like Fast Ethernet interface
or Gigabit Ethernet interface.
 This interface is always up.

11. CISCO IOS
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 multiple-word commands.
This operating system is used to configure routing,
switching, internetworking and other features supported
by a Cisco device.

12. IOS Command Modes
User EXEC mode commands
Privileged EXEC mode commands
Global configuration mode commands
Initially, a user logs into the User Exec mode. This is the mode with the
least number of commands like ping, enable, disable, etc.
This IOS mode is also called enable mode because We must enter
the enable command from a user EXEC mode, if We want to access this
mode. We can save a device configuration or reload a device in this
mode.
Global configuration mode commands are used to configure a device.
We can set a hostname, configure authentication, set an IP address for
an interface, etc.

13. Network Tools
Ping
 used for troubleshooting a network.
 invoked using a ping command.
 uses ICMP (Internet Control Message Protocol).
 works by sending an ICMP echo request message to the specified IP
address.
 If the computer with the destination IP address is reachable, it responds
with an ICMP echo reply message.
 usually outputs some other information about a network performance, e.g.
a round-trip time, a time to send an ICMP request packet and receive an
ICMP reply packet.

14. Dynamic Host Configuration Protocol ( DHCP )
 DHCP is a client/server protocol that automatically provides an IP address
and other related configuration information such as the subnet mask and
default gateway.
 The DHCP server maintains a pool of IP addresses because the IP
addresses are dynamic (leased) rather than static (permanently
assigned), addresses no longer in use are automatically returned to the
pool for reallocation.
 DHCP provide static and dynamic address allocation that can be manual
or automatic.
 In network, a DHCP server manages a pool of IP address as well as default
gateway.

15. Configuring Static Routing
Assigning IP to PC1
PC1> ip 10.10.10.1/24
10.10.10.3
PC1> save ip
exit
Assigning IP to Router R1’s Interface
R1#conf t
R1(config)#interface f0/0
R1(config-if)#ip address 10.10.10.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface f0/1
R1(config-if)#ip address 20.20.20.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
Configuring RIP to Static Routing to R1
R1#conf t
R1(config)#ip route 20.20.20.0
255.255.255.0 10.10.10.3
R1(config)#exit
R1#write memory
20.20.20.0

16. Routing Information Protocol ( RIP )
one of the oldest distance vector routing protocols.
usually used in small networks.
simple to configure and maintain.
Two versions of the protocol exist: version 1 and version 2.
RIP version 2 is capable of advertising subnet masks and
uses multicast to send routing updates.
version 1 doesn’t advertises subnet masks and uses
broadcast for updates.

17. Configuring RIP
Assigning IP to PC1
PC1> ip 10.10.10.1/24
10.10.10.3
PC1> save ip
exit
Assigning IP to Router R1’s Interface
R1#conf t
R1(config)#interface f0/0
R1(config-if)#ip address 10.10.10.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface f0/1
R1(config-if)#ip address 20.20.20.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
Configuring RIP to Router R1
R1#conf t
R1(config)#router rip
R1(config-router)#ver 2
R1(config-router)#network 10.10.10.0
R1(config-router)#network 20.20.20.0
R1(config)#exit
R1#write memory

18. Configuring EIGRPAssigning IP to Router R1’s Interface
R1#conf t
R1(config)#interface s5/0
R1(config-if)#ip address 10.10.10.1
255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface s5/1
R1(config-if)#ip address 20.20.20.1
255.255.255.0
R1(config-if)#no shut
R1(config-if)#exi
R1(config)#interface s5/2
R1(config-if)#ip address 20.20.20.1
255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface s5/3
R1(config-if)#ip address 40.40.40.1
255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
Configuring EIGRP to Router R1
R1#conf t
R1(config)#router eigrp 1
R1(config-router)#no auto-summary
R1(config-router)#network 10.10.10.0
R1(config-router)#network 20.20.20.0
R1(config-router)#network 30.30.30.0
R1(config-router)#network 40.40.40.0
R1(config)#exit
R1#write memory

19. Configuring OSPF
Configuring OSPF to Router R1
R1#conf t
R1(config)#router ospf 1
R1(config-router)#network 10.10.10.0 area 0
R1(config-router)#network 20.20.20.0 area 1
R1(config-router)#network 40.40.40.0 area 1
R1(config)#exit
R1#write memory
Assigning IP to PC1
PC1> ip 10.10.10.1/24
10.10.10.3
PC1> save ip
exit
Assigning IP to Router R1’s
Interface
R1#conf t
R1(config)#interface f0/0
R1(config-if)#ip address
10.10.10.2 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface f0/1
R1(config-if)#ip address
20.20.20.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface f1/
R1(config-if)#ip address
40.40.40.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit

20. Configuring BGP
Assigning IP to PC1
PC1> ip 10.10.10.1/24
10.10.10.3
PC1> save ip
exit
Assigning IP to Router R1’s Interface
R1#conf t
R1(config)#interface f0/0
R1(config-if)#ip address 10.10.10.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit
R1(config)#interface f2/0
R1(config-if)#ip address 20.20.20.1 255.255.255.0
R1(config-if)#no shut
R1(config-if)#exit

21. Configuring BGP Continued…
Configuring BGP to Router R1
R1#conf t
R1(config)#router bgp 1
R1(config-router)#neighbor
20.20.20.2 remote-as 2
R1(config-router)#network
10.10.10.0 mask
255.255.255.0
R1(config)#exit
R1#write memory
Configuring BGP to Router R2
R2#conf t
R2(config)#router bgp 2
R2(config-router)#neighbor
20.20.20.1 remote-as 1
R2(config-router)#network
30.30.30.0 mask
255.255.255.0
R2(config-router)#network
50.50.50.0 mask
255.255.255.0
R2(config)#exit
R2#write memory

22. Some Basic Commands
 show ip route
 show ip eigrp neighbors
 show ip ospf neighbors
 show ip
 show ip route ospf

23. Thank You…