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IP address 227.43.76.109 is an example of which classes of IP addresses?
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∙ 14y ago
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∙ 14y ago
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What method should be used when applying IPv4 addresses to router interfaces on a network?
When applying IPv4 addresses to router interfaces on a network, you would manually configure predictable addresses. For example, the lowest or highest address of the local subnet, on each particular router interface.
What special about address containing 127 in the first octet and how this address is used troubleshooting?
IP addresses that have 127 in the first octet (for example 127.0.0.1) are reserved for loopback addresses, meaning that they point back to the local computer. For example, if I ping 127.0.0.1 from my computer, I will get a reply from my own computer. This works with any IP address beginning with 127. For example pinging 127.34.100.12 (last three octets can be any number between 0 and 255) pings my local computer as well.
How millions of computers are addressed with just 32 bits?
Internet addresses of computers are currently covered by Internet Protocol version 4 (IPv4), which has a 32 bit address space.Imagine you had only 1 bit long addresses. Then you could have only 2 different addresses - address 0 and address 1. But if you had 2 bit long addresses, you get 4 possible addresses - 00, 01, 10, 11. If you had 3 bit long addresses, you would have 8 possible addresses - 000, 001, 010, 011, 100, 101, 110, 111. Every time you add a new address bit, you double the number of addresses possible.1 bit = 2 addresses2 bits = 4 addresses3 bits = 8 addresses4 bits = 16 addresses5 bits = 32 addresses...Since each address bit doubles the number of possible addresses, a 32 bit address space covers 232 possible addresses, or over 4,000,000,000. And this is only for unique addresses that the whole world can use; many computers are in private networks (inside corporations, for example) and do not need an external IPv4 address. They talk to the outside world through a few routers which DO have IPv4 addresses. So a company might have tens of thousands of computers, but only a few dozen IPv4 addresses that are assigned to the routers they have connected to the internet.Even so, all 4,000,000,000 of the IPv4 addresses have finally been allocated and will be used up over the next several months. This means that the internet will need to migrate to a newer addressing version, IPv6. IPv6 uses 128 bit addressing. 2128 is about 3.4x1038 addresses. That's 3,400,000,000,000,000,000,000,000,000,000,000,000,000 addresses. They should last us a while.
Physical address and logical address?
A logical (or virtual) address is a reference to a memory location independent of the current assignment of data to memory; a translation must be made to a physical address before the memory access can be achieved. A relative address is the address expressed as a location relative to some known point, usually the beginning of the program. A physical address, or absolute address, is an actual location in main memory.
What is need of private IP address?
1) Private IP addtess is an unique number/address assign to a computer within the organization or private network or intranet. 2) Using private IP address we can locate a computer on private network.
What is the plural possesive form of address?
The plural possessive form of "address" is "addresses'".
What is supernet?
Aggregation of IP network addresses advertised as a single classless network address. A example of a supernet is 192.168.0.0/19
What is a supernet?
Aggregation of IP network addresses advertised as a single classless network address. A example of a supernet is 192.168.0.0/19
Example of a valid address in California?
There are millions of addresses listed in California. The way to address a person in California is to put the persons name first and then the street address, followed by the city, state, and zip code.
How many octets in ip address?
IPv4 addresses have 4 octets, each octet separated by a period. For example, at this time, one of Yahoo's servers has an ip address of 67.195.160.76.
Example of a TCP IP address and netmask?
It is called "IP address". A typical example, using private addresses, is:IP address: 10.0.0.5Subnet mask: 255.255.255.0Default gateway: 10.0.0.1IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.It is called "IP address". A typical example, using private addresses, is:IP address: 10.0.0.5Subnet mask: 255.255.255.0Default gateway: 10.0.0.1IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.It is called "IP address". A typical example, using private addresses, is:IP address: 10.0.0.5Subnet mask: 255.255.255.0Default gateway: 10.0.0.1IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.It is called "IP address". A typical example, using private addresses, is:IP address: 10.0.0.5Subnet mask: 255.255.255.0Default gateway: 10.0.0.1IP address will be different for different computers, but typically all will start with the same 3 bytes, in the example, "10.0.0". Subnet mask and default gateway will be the same for several computers in the same network.
Can an individual find out the zip code by using the address?
You can find out the zip code by using the address only if the address is unique to that certain zip code. For example, there might be similar street addresses over the world.
What is classlless subnetting?
Classful addressing (RFC 791) was the Internet's first major addressing scheme. The IP address was 32 bits in size, just as today, but was initially managed differently. There were three address classes to chose from: A, B, or C, corresponding to 8-bit, 16-bit, or 24-bit prefixes. No other prefix lengths were allowed, and there was no concept of nesting a group of 24-bit prefixes, for example, within a 16-bit prefix. An address was slotted into one of three address classes based on its high-order bits. Addresses beginning with 0 were considered class A; addresses beginning 10 were class B; addresses beginning 110 class C. Two other classes were also defined, class D addresses beginning 1110 and class E addresses beginning 1111, though neither of these two address classes were normally used. First Octet Address Class 0-127 Class A (/8)128-191 Class B (/16)192-223 Class C (/24)224-239 Class D 240-255 Class EA Class A (/8) contains 16777214 addresses, a Class B (/16) contains 65534 and a Class C (/24) contains 254.Due to the explosive growth of the internet, this crude method of address distribution became too wasteful and would have rapidly led to the exhaustion of global IP space.Classless subnetting (CIDR) is where subnets are created on arbitrary boundaries. CIDR allowed networks to be created and globally routed on arbitrary boundaries, for example an organisation needing 1000 addresses could be assigned a /22 (1024 addresses), rather than 4 Class Cs, or as was often the case, a Class B!Within their /22 this organisation could then split the network up into even smaller "classless" segments, such as /30s (2 usable addresses) for point to point links or /27s (32 addresses, 30 usable) for small networks with up to 29 hosts.
What are private addresses and how are they used to provide extra external IP addresses?
Private addresses are used within an organization, and they are not visible to the outside. Within your local network, you should use the address ranges recommended in RFC 1918, for example, IP addresses that have "10" in the first byte (octet). An equipment with NAT enabled will translate these addresses to a single public address (or a few of them) - making it look, to the outside world, as if the information from several computers originated at the single public address.Thus, the combination of private addresses and NAT will not "provide extra external IP addresses", instead, it will save those valuable IP addresses, requiring only a single public address for a larger network. Cisco mentions, as a rule-of-thumb, a limit of about 4000 machines per public IP address.Private addresses are used within an organization, and they are not visible to the outside. Within your local network, you should use the address ranges recommended in RFC 1918, for example, IP addresses that have "10" in the first byte (octet). An equipment with NAT enabled will translate these addresses to a single public address (or a few of them) - making it look, to the outside world, as if the information from several computers originated at the single public address.Thus, the combination of private addresses and NAT will not "provide extra external IP addresses", instead, it will save those valuable IP addresses, requiring only a single public address for a larger network. Cisco mentions, as a rule-of-thumb, a limit of about 4000 machines per public IP address.Private addresses are used within an organization, and they are not visible to the outside. Within your local network, you should use the address ranges recommended in RFC 1918, for example, IP addresses that have "10" in the first byte (octet). An equipment with NAT enabled will translate these addresses to a single public address (or a few of them) - making it look, to the outside world, as if the information from several computers originated at the single public address.Thus, the combination of private addresses and NAT will not "provide extra external IP addresses", instead, it will save those valuable IP addresses, requiring only a single public address for a larger network. Cisco mentions, as a rule-of-thumb, a limit of about 4000 machines per public IP address.Private addresses are used within an organization, and they are not visible to the outside. Within your local network, you should use the address ranges recommended in RFC 1918, for example, IP addresses that have "10" in the first byte (octet). An equipment with NAT enabled will translate these addresses to a single public address (or a few of them) - making it look, to the outside world, as if the information from several computers originated at the single public address.Thus, the combination of private addresses and NAT will not "provide extra external IP addresses", instead, it will save those valuable IP addresses, requiring only a single public address for a larger network. Cisco mentions, as a rule-of-thumb, a limit of about 4000 machines per public IP address.
What method should be used when applying IPv4 addresses to router interfaces on a network?
When applying IPv4 addresses to router interfaces on a network, you would manually configure predictable addresses. For example, the lowest or highest address of the local subnet, on each particular router interface.
What special about address containing 127 in the first octet and how this address is used troubleshooting?
IP addresses that have 127 in the first octet (for example 127.0.0.1) are reserved for loopback addresses, meaning that they point back to the local computer. For example, if I ping 127.0.0.1 from my computer, I will get a reply from my own computer. This works with any IP address beginning with 127. For example pinging 127.34.100.12 (last three octets can be any number between 0 and 255) pings my local computer as well.
How millions of computers are addressed with just 32 bits?
Internet addresses of computers are currently covered by Internet Protocol version 4 (IPv4), which has a 32 bit address space.Imagine you had only 1 bit long addresses. Then you could have only 2 different addresses - address 0 and address 1. But if you had 2 bit long addresses, you get 4 possible addresses - 00, 01, 10, 11. If you had 3 bit long addresses, you would have 8 possible addresses - 000, 001, 010, 011, 100, 101, 110, 111. Every time you add a new address bit, you double the number of addresses possible.1 bit = 2 addresses2 bits = 4 addresses3 bits = 8 addresses4 bits = 16 addresses5 bits = 32 addresses...Since each address bit doubles the number of possible addresses, a 32 bit address space covers 232 possible addresses, or over 4,000,000,000. And this is only for unique addresses that the whole world can use; many computers are in private networks (inside corporations, for example) and do not need an external IPv4 address. They talk to the outside world through a few routers which DO have IPv4 addresses. So a company might have tens of thousands of computers, but only a few dozen IPv4 addresses that are assigned to the routers they have connected to the internet.Even so, all 4,000,000,000 of the IPv4 addresses have finally been allocated and will be used up over the next several months. This means that the internet will need to migrate to a newer addressing version, IPv6. IPv6 uses 128 bit addressing. 2128 is about 3.4x1038 addresses. That's 3,400,000,000,000,000,000,000,000,000,000,000,000,000 addresses. They should last us a while.
