It's important to understand the differences in IP addresses due to the type of
domain that the class may use. Also classes use different requirements. The more
advanced the class the more advanced the IP addresses will be. For example English
based classes do not utilize the same internet domains and IP as say a business
class. So it's important to know the difference so that way if there is a situation to
where you have to troubleshoot an fix an issue you know what to do and what
tools to use and how complicated it may be. This also varies from advanced class
to class. Not all classes use the same type of IP addresses. Similar yes but not the
same. Just like not all computers or game systems are the same. They might be
similar and use closely related programming but they still have there differences and
understanding these differences can help you to understand and handle each situation
differently. The differences between IP class is due to the size of the network and
the amount of hosts machines each network has. The small number of networks
possessing a very large number of hosts consist of the Class A network, meanwhile
the medium networks with a medium number of hosts comprise the Class B network
and the small networks with a small number of hosts consist of the Class C
networks. There are two other classes the class D networks reserved for the
Multicast and the Class E network for research. you can identify each class by the
first octet of the ip address such as a Class A network is defined in the first octet
between 0 and 127, a Class B network is defined when the first byte is configured
from 128 to 191, and the class C network is defined by the first byte is between
192 up to 223, Class D (224–239) is used for multicast addresses and Class E (240–
255) for scientific purposes. As far as the last one, since I've never really had any
real world experience with networks . Ip addresses are classified in five different
ranges. Each range has a range of valid ip addresses. The value of the octet
determines the the class for the ip address. The system of ip addresses was
developed for the purpose of internet ip addresses assignment. The classes created
were based on the network size. Ip addressing is an integral part of networking and
given the complexity of addressing and subnetting problems are sure to arise. Having
a understanding of ip addressing is essential in knowing how and what to trouble
shoot while fixing any issues that may arise. Just like any subject matter one must
be familiar with the subject matter to properly and knowledgably fix the problem. IP
addressing is a very difficult part of networking and knowing all the protocols and
utilities will make your job a lot easier. There are different IP class ranges because
all of them can only hold so much. You have to have different ranges because you
never know how big a problem is going to be. You have to understand the IP
addresses because they are different in their own way. You have to know what is
going on within the addresses. Understanding networking is a fundamental part of
configuring complex environments on the internet. This has implications when trying
to communicate between servers efficiently, developing secure network policies, and
keeping your nodes organized. Every location or device on a network must be
addressable. This is simply a term that means that it can be reached by referencing
its designation under a predefined system of addresses. In the normal TCP/IP model
of network layering, this is handled on a few different layers, but usually, when we
refer to an address on a network, we are talking about an IP address.
The class B addresses used the first two octets (the remainder of the first, and the
entire second) to define the network and the rest to define the hosts on each
network. The class C addresses used the first three octets to define the network and
the last octet to define hosts within that network. There are differences between IP
class ranges in which they are based on the network size. The classes were setup
for the purpose of Internet IP addresses assignment. The IP addresses A, B, and C
are used for host addresses, while D is for multicast and E is for experimental
purposes. To identify Class A, the first 8 bits represent the network part, while the
remaining 24 bits represent the host part. With Class A the first octet value range is
1 to 127. Identifying Class B, the first 16 bits represent the network part and the
remaining 16 bits represent the host part. The Class B first octet value range is 128
to 191. For Class C, the first 24 bits represent the network part, while the remaining
8 bits represent the host part. Its first octet value range is 192 to 223. Before I start
attempting to troubleshoot any issue, I will first start with having a clear
understanding of what the problem is the person or company has. In order to get
through the ping process with troubleshooting in order to determine an error within
the network. It’s imperative to understand the IP classes I’ve identified above. When
we began to troubleshoot and fix an IP address issue, we have to look at the IP
address, subnet mask and default gateway. Thank you very much for this interesting
topic. The reason that there are differences in between IP ranges is to help with
internet IP address assignment. There are 5 different classes of IP addresses and
whatever the value of the first octet is will decide which class it is. These classes
are based on the size of the network a person is dealing with. The specific class of
an IP address is decided by the starting bits of the address. These classes can be
identified as A, B, C, or D. The range of the A IP addresses is 0.0.0.0 to
127.255.255.255. The range of B is 128.0.0.0 to 191.255.255.255. The range of C is
the first block from 192.0.0.0 to 192.0.0.255 and the last block from 223.255.255.0
to 223.255.255.255. The range of the D IP address always has its first bits as 1110
and there is no segregation of host and network addresses. Lastly, E Range begins
with 1111 and is reserved for the purpose of future research and development.
Understanding IP addressing is very important if you are interested in finding out
why you are having network problems. Getting a general grasp of this knowledge
can also help a person realize the reason that a specific device may not be
connecting correctly. The reason why there are different classes of IP addresses are
2 evaluate and group them by network size. The smaller number of networks but the
really high amount of host blondes in class A. Classy it's for a lot of networks with
the lower amount of host.The IP address classes are:
• Class A, 0-127 – for example, 10.50.13.40. For large networks with many
devices.
• Class B, 128-191 – for example, 130.5.4.77. For medium-sized networks.
• Class C, 192-223 – for example, 192.168.5.10. For small networks with the
small number of hosts.
• Class D, 224-239 – for example, 224.0.0.5. For multicast addresses.
• Class E, 240-255 – for example, 241.0.0.1. Experimental.
IP addresses are made of 32 bits in the bits are divided by network bit and host
bit. A network bit it's a identify the exact network while the host it is to identify
the host On the network.
With understanding an IP address you are able to troubleshoot and configure a
network connection. You can also tell what is the issue on the network itself
whether it is a DNS server connection problem or if the IP address is not pinging
back rekli the number would reflect that issue. There are 3 main classes for IP
addresses, Class A, B, and C. The IP addresses are 32 bit and tells you the network
address and the individual host address. Class A is used in large networks because it
offers the largest number of individual host ids. With class A addresses the first 8
bis tells the network address and the remaining 24 bits are left for host addresses.
Class B networks have a 16-bit network address and leaves 16 bits for host
addresses. Class C networks are used in small office and home networks. These
have a 24-bit network address and has 8 bits left for host addresses. Being able to
understand and classify IP addresses make it easier to narrow down where a problem
would be at in a network. There are different IP address classes for the purposes of
IP address assignment. They were created based on the size of the network. This
way you can distinguish the networks and number of hosts.
There are five classes of IP, A, B, C, D and E. Each has a specific range of IP
addresses. These will ultimately decide how many devices you can have on each
network.
You can identify each class of IP address by the starting numbers.
If it starts with 0, It's class A.
10 is class B
110 is class C
1110 is class D
1111 is class E
Being knowledgeable about IP addresses can help in a multitude of ways when
troubleshooting internet issues.
If a customer is on the wrong IP address it can cause several issues
Class A would be used for large companies or over 16 million hosts. Most of us
will not be using these since they are for big companies such as Apple, Amazon, or
AT&T. Class B would be in my eyes a "middle man" tpye. Does not manage to
have as many possible hosts as a Class A but is still more than adequate for normal
use. Class C being the smallest. Can still host over 254 hosts. There are differences
in IP class ranges to allow for a computer to be able to reach who or what it is
trying to reach. The first three of the class ranges can be used for host addresses.
The remaining two are used for other purposes such as multicast and experimental
or research. In order to identify the classes you must look at the beginning numbers,
or the first 8 bits. Class A is from 0-127, Class B is from 128-191, class C is from
192 to 223, class D is from 224-239, and class E is from 240-255. Understanding
IP addresses and how they work can help you troubleshoot and fix issues because
you will be able to determine where the computers information is going, where it
should be going, and sometimes even why it went to the wrong place to begin with.
You will also be able to determine what devices it is actually communicating with
as opposed to what it is trying to communicate with which in turn will solve many
problems. The differences between the class ranges are to help identify them and
designate which range they should use based on the intended purpose. If they did
not create different ranges we would definitely run into many more conflicts. The
standard classes follow these three IP Address structures.
Class A - network, host, host, host; all class A begin between 0 - 127
Class B - network, network, host, host; all class B begin between 128 - 191
Class C - network, network, network, host; all class C begin between 192 - 254
Understanding IP Address helps you troubleshoot by knowing if both computers are
set for the same address and within the same range. I used the 192.168 range so
much for work I got to the point where I thought that all the first 3 and last 3
needed to match, but I have learned that is not the case. I have also found on many
occasions when you have communication issues between 2 or more devices, first you
verify you are connected to the network and second verify that IP address is set
correctly. In the Production world a lot of equipment use IP addresses to
communicate with a laptop for various reasons. If left at the default IP most items
will not be in the same range if they are from a different company. So often I find
people having to change their laptop IP to communicate with different equipment. IP
address is a unique string of characters that identifies each computer using the
Internet Protocol to communicate over a network. To configure TCP/IP correctly, it
is necessary to understand how TCP/IP are found. IP addresses are normally
expressed in dotted-decimal format, with four numbers. You can identify the class of
an IP address by looking at its first octet. Each class has a range of valid IP
addresses. The value of the first octet determines the class. IP addresses from the
first three classes (A, B and C) can be used for host addresses. The other two
classes are used for other purposes class D for multicast and class E for
experimental purposes. If a computer is having problems accessing network resources
or communicating with other computers, an IP addressing problem might exist. If a
computer doesn't eventually obtain a dynamic IP address, it usually means the
network connection has a problem. Check the network cable, and if necessary trace
the cable back to the switch or hub into which it connects. The different classes are
there for simplicity. Keeping everything limited for scale makes sense and helps
reduce time spent troubleshooting issues. Keeping everything grouped together for
ease of access also helps with reducing the headache you'd have from dealing with a
massive potential group compared to a limited set of addresses. Class A addresses
start with 1 as the first bit in the address, class B starts with a 0 in the first bit,
and class C starts with 11 as the first two bits. These show the hardware what type
of addressing hierarchy is used so things run faster and more efficient, which
reduces latency and boosts performance. By understanding how IP addressing works
you can effectively troubleshoot issues that would otherwise require physical
intervention to discover problems. Just by going over an address from the back to
the front can help locate where the issue is and what you need to do from there,
and whether or not it's a hardware issue or something in software that can be done
remotely or by the user while being guided. The reason there are differences
between the class is to organize the types networks. Class A is used for large
businesses that have a lot of hosts connected to a network, Class C is more for
homes and small networks, and Class B are for the networks in between. Class D is
used for multicast address and Class E is used for research purposes. You can tell
the class of network you are dealing with from the first number in the IP address.
A Class A network goes from 0 – 127, a Class B network goes from 128 – 191,
and Class C goes from 192 – 223, Class D from 224 -239, and finally Class E has
a range of 240 – 255. Understanding IP addressing helps you locate where the
problem occurs in the network using commands and once you do that it makes it
easier identify what the problem is and solve it. If you don’t understand how the IP
addresses are set up or what the subnet mask is, it becomes a lot harder to solve
the problem. Class A, B and C addresses are used as host addresses. Class A
addresses are used for large scale networks. Class A IP addresses can support up to
16 million hosts and can be divided into 128 networks. Class B addresses are used
to for medium to large sized networks. They can support up to 65,000 hosts. C
class is used for SOHO's and can support up to 256 hosts. Lastly D and E aren't as
used and are reserved for streaming or research purposes. The reason there are
different IP class ranges is each class can have up at a different amounts of hosts
on the network. Each class will cover a different amount of the IP bandwidth. The
way to know what class that your connected to is by the IP address class A will
start with 1-126.0.0.0 class b will have 128.0.0.0 to 191.0.0.0 class c will start with
191.0.0.0 and go to 224.0.0.0. Each class will use a different amount of the IP.
Class a will use about 50% to the network space. Class b will use about 25% of
the space and class c will use about 12.5% of the network space. How does
understanding IP address help fix a address issues? Understanding IP address will
help you understand what class the network is running. If the network is running on
a class that can’t support the amount of host that it is running on you would know
to change the class of the network. If the company or the Private network is
running two different class you would know how to get all the systems to work
together to send all the info that needs to be sent. IP addresses are divided into five
classes that are identified by the value of the first octet (the first decimal number).
The system of IP address classes was developed for the purpose of Internet IP
addresses assignment. The classes created were based on the network size. For
example, for the small number of networks with a very large number of hosts, the
Class A was created. The Class C was created for the numerous networks with the
small number of hosts. The IP address classes are:
• Class A, 0-127 – for example, 10.50.13.40. For large networks with many
devices.
• Class B, 128-191 – for example, 130.5.4.77. For medium-sized networks.
• Class C, 192-223 – for example, 192.168.5.10. For small networks with the
small number of hosts.
• Class D, 224-239 – for example, 224.0.0.5. For multicast addresses.
• Class E, 240-255 – for example, 241.0.0.1. Experimental.
If a computer is having problems accessing network resources or communicating
with other computers, an IP addressing problem might exist. If the IPv4 address
currently assigned to the computer is in the range 169.254.0.1 to 169.254.255.254,
the computer is using Automatic Private IP Addressing. If the IPv4 address and the
subnet mask of the computer are currently set as 0.0.0.0, the network is either
disconnected or someone attempted to use a static IP address that duplicated another
IP address already in use on the network. IP addresses have different classes such as
class A, B, C, D, and E. Each class has a range of valid IP addresses. The first
octet is what determines the class. IP addresses from the first three classes (A, B
and C) can be used for host addresses. The other two classes are used for other
purposes – class D for multicast and class E for experimental purposes. These
classes were made to have certain IP address assign for specific functions. The
classes created were based on the network size. With this being said if you look at
the IP address an its class A you know that its going to be one network with
multiple hosts. This helps in troubleshooting by understanding what the solutions to
the problems could be. An IP address will identify the host and router and the IP
address is 32 bits. An IP address format is usually divided into two parts :
Network ID: To uniquely identify the network to which the host belongs.
Host ID: To uniquely identify the host in a particular network. This part of the
address must be unique because it identifies a particular machine an individual as
opposed to a network which is a group.
The IP addresses are arranged into different classes A, B, C, D, and E. Under Class
A the IP address the first bit as 0 and the next 7 bits as a network address and
followed by 24 bits as the host address. The range of IP addresses is 0.0.0.0.0 to
127.255.255.255. This class of IP addresses is used for a large network. Class B
will have its first but as 10, next 14 bits as a network address and following 16
bits as the host address. The range starts at IP address 128.0.0.0 to 191.255.255.255
you will see these IP addresses used for a medium network. Class C IP address
always has its first bit as 110, next 21 bits as a network address and following 8
bits as the host address. The range IP addresses is the first block from 192.0.0.0 to
192.0.0.255 and the last block from 223.255.255.0 to 223.255.255.255 you will see
this being used for smaller networks, small companies, or colleges. The Class D IP
address always has its first bits as 110 and no segregation of host and network
addresses. This where multicast comes into play which means a datagram directed to
multiple hosts. And the final Class E the IP address begins with 1111 it will be
used to reserve future use, research, and development purpose. Classes A, B, and C
will be used for subnetting and supernetting in a computer network. To differentiate
from the different IP Class ratings, you want to look at the first octet within that IP
Address. The order of the bits in the first octet determines the IP class. Five classes
are ranging from A to E. Class A has a total of 128 possible networks that are
surprising to me, and learning about networking is helpful for me and gives me a
better understanding of how systems work from home to office networks. The
importance of knowing the difference between the classes come in handy when
troubleshooting issues inside a structure. Each type has its features, and the functions
of each category are different from one another. For example, class D isn't used for
normal networking operations. It's so much you can learn between the other classes
and what they're used for; in conclusion, knowing the topic will be useful when
troubleshooting a network. Before doing my research and reading this week, I
believed all systems worked the same. I'm going to remember that just because a
server is running on a network doesn't make it the same. The 3 classes of IP Range
originally started to limit the amount of host's on a network.
The way to identify is easy you just look at the first octet of the ip address:
Class A would be 1.0.0.0-126.255.255.255
Class B would be 128.0.0.0- 191.0.0.0
Class C would be 192.0.0.0-223.255.255.255.
for each class that are given a number range to create a range for different amount
of host that might be required for that network. This information is in change
however because from what i have found they are upgrading from IPv4 to IPv6 but
they are delaying that by using the sections of each of the classes to create "private"
classes where the others would be "public" classes. where public address need to be
unique address's, Private address's can be used over , and over, and over!
Understanding IP's will help you trouble shoot networks because each device in a
network is given a ip address the same way each house is given a billing address.
so when you need to send or recover information from that address you can have
the most direct link to the device making work on larger networks and pinpointing
devices and connections a simple task. The reason that there are different IP class
ranges depends on the use that IP address is being used for. We know that in a
IPv4 classes A, B and C are used for normal use for devices like browsing the
web. However, classes D and E are used for for special uses like research and
multicasting.When it comes to determining what class the IPv4 is just look at the
first 3 numbers of the IP address. Class A is either the range of 1 to 126. Class B
range is 128 to 191 and Class C is 192 to 223. Then Class D would be 224 to
239 and, Class E would 240 to 255. An example to help you out would be looking
at an IP address like 122.0.55.180 would be considered Class A because the first 3
numbers of the IP range is less that 126.
Understanding IP addresses will allow you to diagnosis a problem that might happen
to the connection of the network. First you can tell what class it the problem is in
then use PING and TRACE to find where the connection is failing. There are two
different types of IP address classes. There is IPv4 and IPv6, In the IPv4 address
the address can be identified with numerical values only and never exceed more than
three numbers each and have an integer value of 32 bits. The IPv6 address is
identified by letters, numbers and is substantially longer than an IPv4 address. These
addresses are 128 bits long and in Hexadecimal format. The differences between the
two is that IPv4 is a numeric addressing method where as IPv6 is a Alphanumeric
addressing method. Another difference is that IPv4 bits are separated by a dot while
IPv6 is separated by a colon. These IP addresses can be either permanent or
temporary. If they are temporary then its a good indicator that a DHCP is used to
assign the address and if they are permanent then its a good indication someone
assigned it taking into consideration the networks topology. This is useful to know
how to either get a device online or how to get an IP address for a system so it
can connect to a corporate network without being booted from the companies active
directory. The different IP classes help us distinguish the type of network we are
working with and/or troubleshooting. Each class can support a different number of
networks and hosts. For example, according to the real world scenario in module
3.2, it suggests using a Class A network if you are setting up a corporate network
because of the flexibility and potential growth. Class C is more suited for a home
network. So, because we know the different class ranges, we potentially have an
idea of the number of networks, hosts, and the type of network we are
troubleshooting.You can look at IP addresses and determine the class just from that.
In a Class A, the first byte is the network. All the network addresses under a Class
A network will have the same first byte and the remaining 3 bytes will be different
because it varies based on the host. On a Class B network, the network addresses
will have the same first two bytes. On a Class C network, the network addresses
will have the same first three bytes.
