Computer network presentation. EIGRP, DHCP, OSPF, NAT, ACL etc.

1. Welcome to our
presentation
Group members-
Md rakibul islam talukder

2. Topics
•Eigrp
•Nat
•Extra protocol
•Devices
•keyword

3. Eigrp
• Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced
distance-vector routing protocol that is used on a computer network
for automating routing decisions and configuration. The protocol was
designed by Cisco Systems as a proprietary protocol, available only on
Cisco routers.
• It is a distance vector protocol

4. Unified configuration(ipv4 vs ipv6)
Eigrp ipv4
Int fa0/0
Ip bandwidth eigrp 1
No shut
Router eigrp 1
Network 0.0.0.0 0.0.0.0
Eigrp ipv6
Int fa0/0
Ipv6 enable
Ipv6 eigrp 1
Ipv6 bandwidth-percent eigrp 1
No shut
Ipv6 router eigrp 1
Eigrp router id 10.1.1.1
No shut

5. Rip
• The Routing Information Protocol (RIP) is one of the oldest distance-
vector routing protocols which employ the hop count as
a routing metric.
• RIP prevents routing loops by implementing a limit on the number of
hops allowed in a path from source to destination.

6. Types
• Version 1:First generation legacy protocol
• Version 2:Simple distance vector routing protocol

7. Nat
• Nat is a process used to translate network address.
• Nat’s primary use is to conserve ipv4 address
• Nat is usually implemented at border network devices such as firewall
or routers
• Nat allows the network to use private addresses internally, only
translating to public addresses when needed.

8. Types
•Static
•Dynamic
•Pat

9. Static nat
One private = one public
Internet
203.31.218.208
203.31.218.209

10. Dynamic nat
Internet
203.31.218.208
203.31.218.209
One private = many public

11. Five column table
Private
address
Private port Eternal
address
External port Transport
protocol
172.118.3.1 1400 25.8.3.2 80 Tcp
172.118.3.2 1401 25.8.3.2 80 Tcp

12. DHCP
• DHCP =dynamic host configuration protocol
• From 1993
• An extension of bootp, very similar to DHCP.
• Clients should require no manual configuration by user to connect to
the network.
• Automatic configuration-
⒈ ip address
⒉Subnet mask.

13. Extra protocol
•Ospf
•Rip
•Acl
•DHCP

14. Ospf
• Open Shortest Path First (OSPF) is a routing protocol for Internet
Protocol (IP) networks.
• It uses a link state routing (LSR) algorithm and falls into the group of
interior gateway protocols (IGPs), operating within a single
autonomous system (AS).
• It is defined as OSPF Version 2 in RFC 2328 (1998) for IPv4.

15. How it works?
• Use a link state logic
• Divide routers into areas for route optimization and segmentation
• Neighbor discovery
• Neighbor adjacency requirements
• Topology database exchange
• Link stage advertisement

16. Route computation
Before run spf After run spf

17. Acl
• Acl= access control list essentially a list of conditions that categorize
packets

18. Types
• Standard access control list
• Extended access control list
• Named access control list

19. Steps
• Creating the access list
• Placing the access list

20. Devices
Hub switch router pc dns server email server wifi router

21. Keyword
• Redistribute : to connect to protocol between two network
• Password: for security of router
• Do wr :
• Configure mail : for configuring the email server
• Http : hyper text transfer protocol