Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.

Get a Professional Answer

Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.

100% Satisfaction Guarantee

Rate the answer you receive.

Ask David L. Your Own Question

David L., Engineer

Category: Homework

Satisfied Customers: 6258

Experience: 20 years experience writing white papers, tech publications

13852270

Type Your Homework Question Here...

David L. is online now

Subnetting. Need it tonight please.

Customer Question

Pick two network address from the list below. Everybody must pick a unique network address and number of subnet. Please reply to this conference with your selection. Don’t select a network address that somebody else already selected. For each of them, I need the following information: The new subnet mask after the subnetting The following information for the first FOUR subnets: Subnet’s network address Subnet’s broadcast address Subnet’s range of available IP addresses The complete calculations on how you get to the answers. This is very important!! Your goal is to subnet them with as little subnet as possible but still meeting the requirement. In other word, maximize the number of hosts that is available for each subnet. These are the two I need help with. 1. Subnet 155.4.0.0/16 into 34 subnets 2. Subnet 50.0.0.0/8 into 210 subnets

Hi, I'm a Moderator for this topic. I've been working hard to find a professional to assist you right away, but sometimes finding the right professional can take a little longer than expected.

I wonder whether you're ok with continuing to wait for an answer. If you are, please let me know and I will continue my search. If not, feel free to let me know and I will cancel this question for you. Thank you!

Hi David, Can you please include the calculations as to how you arrived at the subnetting address net work address, subnet broadcast address and subnet's range of available IP addresses.

THIS ANSWER IS LOCKED! You can view this answer by clicking here to Register or Login and paying $3. If you've already paid for this answer, simply Login.

Next, the "/8" at the end of the network means that the subnet mask consists of eight 1's followed by 0's. We know that subnet mask is 32 bits long, so there are eight 1's and twenty-four 0's:

The part of the IP address where the subnet mask is 1 are called the "network" bits and the other is called the "host" bits.

To subnet a network means that we are going to "borrow" some bits from the "host" bits and use it as a "network" bits.

To calculate how many bits we need to "borrow", we need to find "which power of 2 is at least equal to or greater to the number of subnet needed".

Since we need to have 100 subnets, 2 to the power of 7 will fit our needs (2^7 = 128 and 128 is the smallest power of 2 that is greater than the number of our subnets).

So, we need to borrow 7 bits from the host bits and use it as network bits.

We know that the first 8 bits are the "network" bits, and the last 17 bits are the "host" bits. The 7 bits that we borrowed from the "host" bits and now used as part of the new "network" bits are called "subnet" bits.

Each of the 100 subnets that we will now have, we have a unique "subnet" bits assigned to them.. The easiest way is to just assign them 1, 2, 3, 4, 5, 6, 7, ... and so on.

So, the first subnet, will have the subnet bits that is equal to 1. Now, remember, this "1" is in decimal notation and will need to be converted into a 7 bits binary format: 0000001

So, for the first subnet, the first 15 bits will look like this:

11000111 . 0000001_ . ________ . ________

Now, some new rules.. - Network Address is one where the "host" bits are all 0's - Broadcast Address is one where the "host" bits are all 1's - The range of available IP addresses are the IP addresses between the two numbers above

So, the network address for the first subnet is:

11000111 . 00000010 . 00000000 . 00000000 or 199.2.0.0

and the broadcast address is:

11000111 . 00000011 . 11111111 . 11111111 or 199.3.255.255

So, if the network address is 199.2.0.0 and broadcast address is 199.3.255.255, then the available IP addresses must be: 199.2.0.1 until 199.3.255.254.

Now, repeat this for the other three subnet by specifying 2, 3, and 4 for the "subnet" bits, then report back what the network address, broadcast address, and range of available IP addresses for each of the three subnets.

THIS ANSWER IS LOCKED! You can view this answer by clicking here to Register or Login and paying $3. If you've already paid for this answer, simply Login.

Hello Daivid. I need your help with a question and will like to ask how can I add it as an attachment and send it to you. Please let me know when you get this.

Customer:replied 2 years ago.

Hello David,I don't know if you got my last message but I have a question that I need help with and was wondering if you are online to look at it for me. It is too large to add here, so if you can please send me a way I could

Post another question and request me and in that question click the hyperlink (looks like a chain) icon in the toolbar above the text box where you type response messages. Then click the red and blue box to browse for and select the file and click Ok and Insert to upload the file.

If that does not work then click the link below and upload the document to Wikisend then post the download link here so I can download it.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal ...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.Freshfield, Liverpool, UK

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.DianeDallas, TX