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Questions tagged [ipv4]

IPv4 is the "old style" IP protocol currently used in most circumstances.

IPv4 is the protocol which has been in use since the early 1980s, described in IETF publication RFC791. It gets gradually replaced with nowadays as the IPv4 addresses become exhausted.

More information at http://en.wikipedia.org/wiki/Ipv4

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How I can add IP Address From start to end to Database?

I want to add IP address from start to end to database such as IP Address (Start) 192.168.0.0 IP Address (End) 192.168.0.10 So it should add to database…
Mdrmdr Mdrmdr
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My cloudflare settings are all configured but not working

So, I am using CloudFlare at the moment for my DNS records. I have my team speak server A-Record at ts.servername.net and pointing to my ip 100.100.100.100, and all my other A-Records are pointing to exactly where they should be and activated. They…
Brandon Howell
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Replacing last octet of an IP v4 using C#

I want to replace the last octet of an IP v4 for another new octet. For example, if I have below IP v4: 192.168.0.100 and I want the last octet to be 200: 192.168.0.200 What is the best way to do it using Linq or regular expressions?
user304602
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How to use GetTcpIPv4Statistics

I want to get TCP/UDP IPv4 statistics. I serached and I found GetTcpIPv4Statistics API. SO, how to use it to get TCP/UDP statistics in a c++ code ?
user2219913
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How to detect if a number between a coma (.) is >= 0 and <= 255?

it's for detecting ipv4 adressess for instance: 255.255.1.0 = true 277.255.1.0 = false because 277 is higher than 255 how do i detect this on every number seperated by comas? Anyone got an idea?
Badplank
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How to Convert Between IP(v4/v6) Address (and Port) and String?

I'm trying to port some Windows code that uses RtlIpv4StringToAddressExA/RtlIpv6StringToAddressExA and RtlIpv6AddressToStringExA/RtlIpv4AddressToStringExA to Linux and can't seem to find quite equivalent APIs. There seem to be plenty of ways to…
Nick Banks
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How do I find nth IP of the given subnet?

For example: given subnet 10.10.0.0/16 , if I have to find 1000th ip of given subnet range?
Chethan Gowda
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How to Extract Public IP Address from Shell and Print - using PHP?

Note: I working this in a Local network only I'm using a Jio Internet for the scenario. So I have a IPV6 public IP. I can see the Public ipv6 IP is visible on CMD "ipconfig" or "ipconfig /all" Under "Wireless LAN adapter Wi-Fi:" I can see two…
Daniel Raj
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What does this IP address stand for in IPv4

Hi I've been learning networks for a while now and I can't seem to find a solution for this doubt online. I learnt that if you are sending a packet to a class B network's destination 141.49.255.255, it means you are broadcasting the packet to the…
Narayan Dheeraj Kumar
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Which is unusable IP address 127.0.0.1 or 0.0.0.0?

I'm having trouble differentiating the two on which is the unusable address. I've found that IP 127.0.0.0 is reserved for loopback, and 0.0.0.0 is valid but have not found a clear answer. Thanks in advance
Caiz
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Cannot ping across router (see details)

I'm trying to go through an online course to study for my CCENT and CCNA certification exams, and I've come across a trouble spot. In the module, he's going over basic network setup, including setting up interfaces, assigning ip addresses, the…
Kaerea
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I need to create a simple webpage that only shows someones public IPV4 address in their browser window

What I am looking to do is create a simple page, maybe in php, that only shows the IPV4 Address. It should look like this site "http://myexternalip.com/raw" but not show IPV6 only IPV4. This site shows my IPV6 address, and I know that I have both…
Ajster1989
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IP v 4 subnetting and addresses

Hello I am struggling working out IP address and their subnet networks. I am faced with the following question as an example I would like to know if the answers I came up with are indeed correct. The Question is as follows And my answers to the…
Gerhard Janse van Rensburg
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How to convert IP Version 6 into string? What should I use instead of 0xFF in case for ipv6?

This is how you would convert a 32 bit integer ipv4; int e = 12345678; u_char ip[4]; ip[0] = ip & 0xFF; ip[1] = (ip >> 8) & 0xFF; ip[2] = (ip >> 16) & 0xFF; ip[3] = (ip >> 24) & 0xFF; printf("\t%d.%d.%d.%d\n", bytes[0], bytes[1], bytes[2],…
user3673341
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Mobile HotSpot:802.11 to Cellular data conversion

I am trying to understand the mobile hotspot technology (tethering). Specifically, I am interested in how the devices connected to a HotSpot (via Wi-Fi) access the internet via Cellular network. Here are the specific questions : I am assuming that…
user2383436
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