Our team worked together on a Controlled Access to Network using ACL project. The main objective of the project is to control or limit the access to different parts of private network accessed by users of an organization. To accomplish the same, we have used the firewall concept of CISCO router that can filter traffic at Network layer and Transport layer level by using standard and Extended Access Control Entries.

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TEAM MEMBERS NAMES:
 P.VENKATASAI
 S.AMIT KUMAR
 BOITINI YAO HUBERT
 CHRISTIAN HERMANN
PROJECT DESCRIPTION:
 ACLs are one of the main features of today’s
internetwork router. which are defined by the
network administrator.
 In this project we configure a standard and
Extended ACLs in a private network to
provide security for the network of the
organization by providing traffic flow control.

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 What is ACL ?
 Acl is a set of rules which will allow or deny specific traffic moving through the router.
 It is also called as a packet filtering firewall
 HOW MANY TYPES OF ACLS?
There are two main different types of Access-list namely:
Standard Access-list – These are the Access-list which are made using the source IP address only. These ACLs permit or deny the entire
protocol suite. ...
Extended Access-list – These are the ACL which uses both source and destination IP address.
 IDENTIFICATION
We have two categories:
 Numbered
 Named
 ACLs can be configured to apply to inbound traffic and outbound traffic:
 Inbound ACLs – Incoming packets are processed before they are routed to the outbound interface.
 Outbound ACLs – Incoming packets are routed to the outbound interface, and then they are processed through the outbound ACL.
 What is implicit deny in ACL?
The router tests packets against the conditions in the ACL one at a time. ... If no conditions match, the router rejects the packet because of
an implicit deny also called as hidden rule
 Why use ACLs
 Limits network traffic to increase network performance.
 Controls which type of traffic are forwarded or blocked by the router.
 Ability to control which areas a client access.
 ACLs provide security for network access and can block a host or a network
 It is also used to protect the network from denial of service (DOS)attacks..etc

4. Project life cycle
 Create topology
 Configure the router
 Standard ACL
 Extended ACL
 Testing the topology
 troubleshoot
 Implement on real
devices
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5. Acl project
scenario by
using cisco
packet
tracer
5
employee
manager
employee
HR
EMPLOYEE
MANAGERIn this topology we used
standard and extended
ACLs.
Employees can not get
Access to the manager
And HR
The managers have access
Only to the employees
Network
The HR has full access
on employees and
Managers

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