Find Jobs
Hire Freelancers

java UDP client program with the name WOLClient which creates a magic packet and sends it to a sleeping computer with MAC address MAC_ID

$10-15 USD

Closed
Posted over 6 years ago

$10-15 USD

Paid on delivery
One of the features of Ethernet is its ability to wake up sleeping computers by receiving a special packet on the network. This feature is called Wake-on-LAN (WOL) and allows users to wake up remote computers without needing to be physically in front of the computer. The special packet that wakes up the computer is called a “magic packet”. Wake-on-LAN requires motherboard support at the BIOS level, and an appropriate network card that scans the network for magic packets. Magic Packet Format Since Ethernet operates at the Data Link layer, the network card only inspects a frame if it is either a broadcast frame or the destination address of the frame matches its own MAC address. Thus, magic packets are usually subnet broadcasts (e.g., [login to view URL]) or limited broadcasts ([login to view URL]), which ensures that the sleeping computers will receive a copy of the frame. Since there is no application listening on the sleeping computers, UDP is used as the transport protocol. Packets are sent to either UDP ports 7 or 9. The frame body consists of the Ethernet broadcast address (FF:FF:FF:FF:FF:FF) and the MAC address of the sleeping computer (6 bytes) repeated sixteen times for a total of 102 bytes. Note that the “:” betweeb the hexadecimal representation is for human benefit, and is not to be used in the packet. Specifications Write a java UDP client program with the name WOLClient which creates a magic packet and sends it to a sleeping computer with MAC address MAC_ID. MAC_ID should be provided as an argument to the program in the format AA:BB:CC:DD:EE:FF
Project ID: 15194960

About the project

9 proposals
Remote project
Active 7 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
9 freelancers are bidding on average $43 USD for this job
User Avatar
I am very proficient in java. I have 16 years java developing experience now, and have worked for more than 7 years. My work is online game developing, and mainly focus on server side, using java under Linux environment. I used java to make many great projects, for example, I made the tools which can convert java files into c++ scripts, of course garbage collection included, this job is very similar to a compiler, and is very complex. I also made our own mobile game using java, I can show you the demo of client, if you like. I am very proficient in c++ also. I have a very good review on Freelancer.com, I never miss a project once I accept the job, you can check my review. Trust me, please let expert help you.
$80 USD in 3 days
4.8 (54 reviews)
6.2
6.2
User Avatar
Hi This can be easily done within a maximum time of one day. Please let me know if you're interested. Cheers Relevant Skills and Experience I am a Java developer with over 5 years of experience and two of those are in the UK. Please refer to my profile for more information. Proposed Milestones $35 USD - Default Milestone
$30 USD in 1 day
4.9 (48 reviews)
5.6
5.6
User Avatar
hi, I can prpvide this program in less than 24 hours.
$88 USD in 1 day
5.0 (57 reviews)
5.7
5.7
User Avatar
1) We can complete your project on time and within your budget. 2) We have worked on similar projects to what you are looking for, and I am confident I can exceed your expectations. Relevant Skills and Experience We have 7+ years of experienced people in our team from domain. Give us chance to complete your project. Proposed Milestones $55 USD - java program
$55 USD in 4 days
5.0 (12 reviews)
4.0
4.0
User Avatar
hi, i can write this WOL program for you in java Relevant Skills and Experience java Proposed Milestones $30 USD - all
$30 USD in 2 days
4.9 (255 reviews)
3.2
3.2
User Avatar
I am ready to work on your task , as per the requirement . please message me - Thank you Relevant Skills and Experience Java Proposed Milestones $17 USD - final NA
$17 USD in 10 days
4.2 (8 reviews)
2.4
2.4
User Avatar
A proposal has not yet been provided
$55 USD in 5 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UNITED STATES
United States
0.0
0
Member since Sep 18, 2017

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.