An IP address is a unique network-level identifier assigned to a network-enabled device.

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Home IP Address Management?

Are there any better, free solutions to managing static IPs at home than a spreadsheet?
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3answers
889 views

What happens when all IP addresses run out?

I recently read an article in which they wrote that that there will be a time when there will be no more IP addresses available. Is that right? Do I need to register a website now just in case?
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4answers
969 views

Duplicate IP Adresses

My roommate and I are experiencing a problem in that our computers have the same IP address. I have a laptop and he's got a desktop, and only recently did this occur, in the past day or two. Is there ...
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7answers
32k views

Show all machine's internal IP addresses (Windows XP)?

I have 3 Windows XP machines connection in a small home network. (2 of the 3 have no screen or keyboard.) What's the easiest way for me to find out each of the machines internal IP addresses? Is ...
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1answer
2k views

IP address spoofing using Source Routing

With IP options we can specify the route we want an IP packet to take while connecting to a server. If we know that a particular server provides some extra functionality based on the IP address can we ...
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2answers
5k views

Why does computer connected via wireless and wired have different address but same name?

I have a Thomson TG585 v7 router that can be access via a webbrowser on ipaddress http://192.168.1.254/ I have various computers connected to it via wireless or ethernet in some cases both and I've ...
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1answer
18k views

Get Hostname from IP address/MAC address

I have a list of IP addresses and MAC addresses connected to my local network, but I need to get the hostnames of each device, is there a command line or terminal (mac) command for this?
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How does geolocation based on IP address work?

As all Internet users, I've visited web sites which appear to know in which country and city I'm located. I understand that these web sites typically look up my IP address in a database which maps IP ...
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1answer
2k views

How to really change programmatically ip address without reboot (with no connection too)?

Really, I tried everything, and there is no solution that works for me. WMI - everything perfect, but I can't change ip address when there is no connection. O_o Are you joking me? How can I make a ...
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2answers
58k views

How do I spoof the IP that my computer sends a server without using something like a VPN or proxy?

I want to spoof (not actually change) the public IP that my computer sends to servers. I don't care what it gets changed to as long as it changes, even by one digit. I don't want to have to use a VPN ...
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7answers
1k views

Getting my IP address?

My system has a dynamic shared IP provided to me by my ISP. I want to give my IP address to a friend so she can allow access to her server for requests coming from my IP. Can someone please tell me ...
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3answers
3k views

Given a PC's MAC address, can I find its IP?

Is there a way to get the IP address when all you have is the MAC of an item?
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1answer
424 views

Why does MacOSX try to resolve zero padded IP addresses as host names?

This one caused a friend some headache when setting up a switched internet connection which had zero padded IP addresses in the configuration paper like so: 192.168.019.254 No matter how he tried to ...
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11k views

Find all past desktop IP addresses

Is there a way to find some type of log file that saves all IP address that were assigned to a desktop? I changed an static IP of a desktop (switched it to DHCP) of mine and i can not recall what the ...
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4answers
2k views

How often do users change their IP address (average time needed)?

Basically, i need to know how long (on average) and ip address is used per user, this can be US-only stats or World-Wide stats, if you have a source please state it. If its your own data please let us ...
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3answers
6k views

I'm using Cisco Packet Tracer for Simulation and got error “ip address overlaps with..etc”

The 1st row is for my router and the 2nd row is for my LAN. What's wrong? Is my IP addressing and subnetting wrong? I already checked my configuration.
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26k views

How to block incoming connections from one IP address?

I have found out that one IP address is trying to RDP to a machine. I would now like to get XP to block all incoming connections from this IP address, and I am finding it very frustrating how ...
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6answers
2k views

user friendly name for ip address on home network

How can I set up some sort of local DNS service, so that instead of using ipaddresses to do things like VNC and remote desktop a more URL like thing can be used. All the devices on a network have a ...
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4answers
462 views

Comparing the first part of a string in Excel

I'm trying to create an automated function that will determine the class identification for IP addresses after you input it into Column A's input section by checking the first section of the address. ...
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1answer
8k views

Assign IP's to certian mac addresses in dd-wrt

I have a Linksys WRT54G/GL/GS that I am running DD-WRT v24-sp2 (10/10/09) vpn - build 13064 on it and for the life of me I can not find a way to assign ip's based on Mac address. Basically I have a ...
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1answer
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how do I get 0.0.0.0 to resolve to localhost when browsing a url that contains 0.0.0.0?

Doing some node development on windows. Node programs like to kick out URLs that look like http://0.0.0.0:8080. In Linux (iirc) pasting that url into the browser will be successful. But in Windows, ...
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1answer
8k views

How to set the same static IP address for LAN and wifi interfaces on a Win7 laptop?

When I'm at my desk at home, I connect to my network through my Ethernet LAN port. Sometimes however I have to get up and move my computer around (such as to connect it to a TV in another room), so I ...
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Can you have a class C IP address with a subnet mask of 255.255.0.0?

Can you have a class C IP address with a subnet mask of 255.255.0.0? What happens when you have a setting like this?
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Configuring static IP address for using Remote Desktop Connection

I have a static IP address provided by my ISP. I have three machines at my home. I want to remotely access one of my machines (Windows Server 2003) using Remote Desktop Connection from any location. ...
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4answers
3k views

finding IP address using Linux command prompt

I'm looking for a way to get my IP address using the command prompt in Linux. I know when you type "ifconfig" you can get your local IP address (i.e. 192.168.0.103), but I'm looking for my IP address ...
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How can I know IP address of the sender in Gmail/Yahoo/Hotmail?

Is there a way to know sender's IP address sent in Gmail/Yahoo Mail/Hotmail any mail?
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764 views

Wireless router's ip address

Does my wireless router have an ip address that's independent of my computer's ip address? Is there any way to determine what that ip address is? Note: I'm not talking about the internal router ip ...
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3answers
1k views

Why can I no longer access a particular website that I have been visiting for years without issue?

There is a private forum site that I have accessed without issue for a long time. As of about 2 weeks ago, without warning, I suddenly cannot access the site through any browser. My first assumption ...
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2answers
25k views

Pinging own machine returns an IPv6 address instead of IPv4

When I ping my own machine I get an IPv6 address: Reply from fe80::1004:p8f0:9e40:a42c%10: time<1ms Reply from fe80::1004:p8f0:9e40:a42c%10: time<1ms I used to get the IPv4 address (eg. ...
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4answers
7k views

How to find out what computers are connected to an access point/router using Linux terminal?

I would like to determine what computers are currently connected to my access point/router via the command line in Linux. How can I do this?
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2answers
179 views

What is ip address 0.0.0.0

I've been looking at the socket information in proc/net/tcp and I see a lot of the home connections (127.0.0.1) with a remote address of 0.0.0.0. I was just wondering if a blank address like that had ...
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Understanding the static IP I just purchased

I just purchased a static IP from my ISP. The tech installed a cable modem and gave me some information: IP Address: 1.2.3.61 Gateway: 1.2.3.62 Subnet Mask 255.255.255.252 I could mindlessly ...
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1answer
681 views

What does “ :: ” mean in my connections ? (“TCP local address :: port 49157”)

It says: TCP local address :: port 49157 remote port N/A etc. status listen There are several connections listed under svchost.exe, services.exe, Issas.exe, wininit.exe, system. I have no ...
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How can I hide my IP without using a proxy?

I've been trying to do this for some time. I have installed Hamachi and used in correlation with privoxy. This is all well and good except I'd like to accomplish this without the use of a proxy ...
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3answers
3k views

Ping [computer] get strange IP address

On my local network, I have multiple computers that I connect to. I don't typically remember the IP address nor do I care. This morning, I went to RDP put "Sam" in the field and pressed enter. It ...
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3k views

Local vs Internet IP addresses

So I have two IP addresses - one is on my network settings and is 192.168.0.X. Another one - I checked this address online - is 108.X.X.X. What's the difference between these two IP addresses? Does it ...
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1answer
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How can I use multiple IP-addresses, multi-homing, on a Windows 7 machine?

Is there an easy way to set up multiple IP-addresses (multi-homing) for a Windows 7 machine? Today the machine is on a LAN and the IP-address is allocated by DHCP, I can change to static address ...
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2answers
155 views

Do I(my gateway) have a public ip?

when I search for "my public ip", google returns 103.12.15.1 (changed). My router's WAN side IP is 10.5.184.23 and its gateway is 10.5.184.12, not a public ip. When I traceroute to 8.8.8.8 from my ...
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1k views

How to troubleshoot DHCP problems?

This question was originally titled "How to gather information about suspicious wireless access point?" but then this topic has been moved to another question, leaving here discussion of connection ...
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99 views

Delaying assignment of IP-address until network adapter device is available

I'm working on a custom embedded board with three Ethernet interfaces: eth0 and eth1 are built-in to the CPU (a TI AM3356) eth2 is made with an on-board LAN9512 chip (using the smsc95xx driver), ...
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1answer
258 views

Understanding the black magic of IPv6 addresses

my router (AVM Fritz Box) is supporting 6to4. So far it works but I want to understand what's going on. The last few hours I spent on a IPv6 book. There are many things I understand now but there is ...
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2answers
4k views

How to configure to run two Browsers with different IP address?

I have two IP addresses assigned by my ISP, and I want to use both. I'd like to assign each one to a different browser. Is this possible? What do I need to do to achieve this? My OS is Windows ...
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1answer
4k views

How can i assign multiple IP addresses to an NIC (possibly software solution)?

I am connected to a network that assigns my IP address via DHCP, but i also need to assign my NIC an IP address that is not in the network's address range. Is this possible, maybe with some "virtual ...
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1answer
437 views

IP Address Range Calculation Logic

I want to calculate Network Address Address Of First Host Address Of Last Host Broadcast address when an IP address of the network is given. is there any standard calculate to solve this ...
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3answers
11k views

Full URI to a file on another machine in our local network?

On our small-business Windows XP network, I have a file in f:\MyDir\SubDir\text.doc What would be the URI for that file while I'm on another machine.... if all I knew was that machine's IP address, ...
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1answer
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VirtualBox Issue: virtualbox changed my Computer Name's ip address in Windows

I had installed virtualbox 4.2.2 in Windows 7. My Computer Name is: MY-PC My IP address (using ipconfig /all command) is: 192.168.1.101 My IP is dynamic and I set DNS to google dns (8.8.8.8) When I ...
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2answers
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How to blacklist IPs on Windows 7?

I'm trying to find something similar to iptables in Linux for Windows. I've tried using Windows firewall as well as editing the host file to block specific IPs, but had no success. I've also tried ...
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1answer
2k views

Could you help me to understand netstat output?

I am trying to figure out how to get IP of a suspicious access point I am using to access the internet. Running netstat, I get the following: $ netstat -rn Routing tables Internet: Destination ...
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3answers
4k views

LinkSys router suddenly cannot get an IP address

I have a linksys router WRT54G2 connected to a cable broadband. Just last week, everything was working perfectly - I would be able to connect my laptop to the internet using WiFi. However, starting ...
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0answers
582 views

Why does my cable modem have two IP addresses?

The internet setup at my home is as follows: I have a cable modem (192.168.100.1) connected with a coaxial cable. The cable modem is connected to a wireless router (192.168.1.1) via an ethernet ...