- Definition, Uses And Benefits
- Overview Of Network Topologies
- Overview Of Network Types
- Protocols And Standards
- Osi Reference Model
- Tcp/Ip Model
- Comparison Of Osi And Tcp/Ip
- Connectionless And Connection Oriented Network Services
- Internet, Isp, Backbone Overview
- Client Server And Peer To Peer Network
- Assignemnt -Chapter 1
- Chapter 1 Slides-Bca
- Chapter 1 Slides-Bsccsit
- Definition And Function
- Overview Of Llc And Mac
- Framing
- Flow Control
- Channel Allocation Techniques
- Ethernet Standards
- Dll Protocol
- Hamming Code-(Error Detection And Correction)
- Asynchronous Transfer Mode(Atm)
- Ieee 802.11
- Error Detection And Correction
- Parity Check - Error Detection
- Checksum -Error Detection
- Crc- Cyclic Redundancy Code
- Data Link Layer - Slides
- Introduction And Function
- Ipv4 Addressing And Subnetting
- Classful Address And Classless Addressing
- Ipv6 Addressing And Features
- Ipv4 And Ipv6 Header Format
- Comparision Of Ipv4 And Ipv6
- Example Address: Unicast, Multicast And Broadcast
- Example Address: Unicast, Multicast And Broadcast
- Routing And Routing Table
- Types Of Routing (Static Vs Dynamic, Unicast Vs Multicast,Link State Vs Distance Vector, Interior Vs Exterior)
- Routing Algorithm
- Routing Protocols
- Ipv4 To Ipv6 Transition Mechanism
- Icmp And Icmpv6
- Nat
- Network Traffic Analysis
- Firewall
- Access Control List
- Path Computation Algorithm
- Subnetting Numerical
- Lab 5:Basic Router Configuration
- Static Routing
- Dynamic Routing
- Creation Of Vlan And Trunking
- Creating A Lan And Connectivity Test In Lan
- Lab 3: Basic Network Command
- Implement Firewall Using Packet Tracer
- Basic Firewall Implementation
- Dns And Web Server Configuration
- Ftp
- Acl(Access Control List)
- Ethernet Cabling- Straight And Crossover
- Lab 1: Prepare A Hardware And Software Specification For Basic Computer System
- Lab 3: Determine Appropriate Placement Of Networking Device On A Network
LAB 17: IMPLEMENTING FIREWALL USING PACKET TRACER
QUESTION: IMPLEMENT FIREWALL USING PACKET TRACER. ALSO USE THE SAME SERVER AS DHCP SERVER TO AUTOMATICALLY ASSIGN IP ADDRESS TO ALL PC AND ALSO USE THE SAME SERVER AS WEB SERVER. YOUR FIREWALL SHOULD DENY ALL ICMP/PING AND ALLOW ALL IP.
SERVER 0:
CLICK ON SERVER
- GOTO IP CONFIGURATION
- GOTO SERVICES
// making the server as DHCP server
CLICK ON DHCP
SELECT SERVICE AS ON
// making the server as web server
CLICK ON HTTP
HTTP SHOULD BE ON
CLICK index.html and click edit
Now, change the header portion according to your wish
CLICK ON SAVE
// making the server as FIREWALL
CLICK ON SERVER
GOTO DESKTOP
CLICK ON IPV4 FIREWALL
SERVICE ON
CONFIGURE AS FOLLOWING
// we are allowing all IP and denying all ICMP/PING , hence we will not be able to ping from PC to server but we will be able to open the web server in PC.
PC0:
GOTO DESKTOP
GOTO COMMAND PROMPT
PING 1.0.0.1
We will not be able to ping as the firewall has blocked the packet.
NOW GOTO DESKTOP
GOTO WEB BROWSER
TYPE 1.0.0.1
YOUR WEBPAGE WILL OPEN
Hence we are able to use IP in web browsers as FIREWALL has allowed IP.