Linked Questions

8 votes
1 answer
42k views

What are the differences between network, host, loopback and broadcast address? [duplicate]

I have one question about IP addresses. If I have address 172.18.230.127./29 how should I know what type of address is this one. It could be: Network address, Host address, Loopback address ...
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  • 91
1 vote
1 answer
11k views

Maximum number of Subnets [duplicate]

If I have been assigned the address 164.12.130.0/23 in a network block. What is the maximum number of subnets that can be defined? What will be the IP addresses of those subnets. This is not a Home ...
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2 votes
1 answer
10k views

Start with 192.168.67.0/24 and split it into 4 equal networks, what is the third usable IP address of the 3rd subnet? how do you solve this? [duplicate]

Start with 192.168.67.0/24 and split it into 4 equal networks, what is the third usable IP address of the 3rd subnet? how do you solve this?
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3 votes
3 answers
20k views

how to find a minimum number of host bits needed? [duplicate]

let's say I have 200.35.1.0/24 network block. I need to address 20 hosts on each subnet. How do I specify the minimum number of host bits that are required?
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0 votes
1 answer
2k views

Which CIDR block contains the most IP addresses, 192.168.0.0/16 or 169.254.0.0/16? [duplicate]

I want to say 192.168.0.0/16 contains more IP addresses, 86 more to be precise? I've simply subtracted 168 from 254. Can anyone clarify how you can determine which has more IP addresses? Thanks
user avatar
  • 179
0 votes
1 answer
6k views

Why do I get 8 addresses and 6 hosts on a /29 subnet? [duplicate]

I am moving my company to a leased line and in their brochure they have mentioned that I will be getting a /29 IPs. When I wanted to lookup how many IP addresses that will be, this page http://www....
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0 votes
1 answer
21k views

How to find number of borrowed bits in subnetting [duplicate]

I am an Electrical Engineer learning about computer Networks, So this question might be childish and easy for most of you. Please answer it briefly. I am performing subnetting where I have this ...
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4 votes
4 answers
765 views

Which ranges of IPv4 addresses cannot be expressed in prefix notation? [duplicate]

I was trying to do an exercise where we have a range of IPv4 addresses and we need to convert it both to "prefix notation", e.g. a.b.c.d/x, and to "address/mask". Now, apparently, the following ...
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3 votes
2 answers
3k views

Why largest subnets should be assigned IPs first? [duplicate]

Is there any particular reason as of why we should assign IP addresses to the largest subnet first? Could anyone give a simple example of why this is the better option? Let's say I have two subnets: ...
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2 votes
1 answer
4k views

What's the difference between host and network address? [duplicate]

Often in the interviews there is a question 'how many hosts this network can have and how many subnetworks?'. Let's say we have /30 network. It has 4 addresses total, minus it's own network address ...
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  • 125
2 votes
2 answers
3k views

How to choose IP address? [duplicate]

I have 2 sensors with the following IP addresses: Sensor A IP: 192.168.0.80 Sensor B IP: 192.168.1.201 I am able to connect them to my laptop separately using 192.168.0.100/255.255.255.0 for Sensor ...
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0 votes
1 answer
11k views

How to find the first and last address in the FIRST AND LAST SUBNET [duplicate]

So there's a problem that literally stress me out every time I look at it. It's like I almost understand it until I get to knowing how to find the first and last host in the LAST address (last subnet)....
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  • 1
0 votes
1 answer
11k views

How to calculate random subnet first/last address [duplicate]

Lets say I have to create 256 subnets (it could be any number), how would I find the first and last (network/broadcast addresses) for a randomly chosen subnet? For instance, subnet 139. I'll give an ...
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  • 3
0 votes
2 answers
2k views

What are the subnet masks for the following slash address blocks? [duplicate]

/8 /15 /29 What are the subnet masks for the following slash address blocks? Can any one explain why?
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0 votes
1 answer
3k views

How to assign 2000 addresses starting from 198.16.16.0? [duplicate]

This problem comes from Tannanebaum's CN book and the full description of it is as follows: A large number of consecutive IP addresses are available starting at 198.16.0.0. Suppose that four ...
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