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

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30 views

How do I know if two machines are on same LAN?

I am very poor with Computer Networks, even though I took class in my grad school. I keep forgetting about subnets and masks and what not! Currently, I am playing with Docker and Erlang and was ...
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0answers
30 views

How to setup my VPN Server?

I had successfully setup vpn server on windows 8.1! Since, I am in a university, many sites are blocked, so in my vpn server I have connected through another vpn (OpenVPN, Psiphon etc.) But now I want ...
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3answers
69 views

What is the IP address of my home computer from the perspective of the outside world? [duplicate]

What is the IP address of my home computer from the perspective of the outside world? I need this in order to grant myself permissions to connect to a mysql database on a work server. I'm working on ...
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2answers
48 views

What IP to listen on to see web server from outside LAN?

Okay, so I'm semi-new to networking and to back-end web development, and am learning Flask presently. I just turned on a basic little HTTP server on my laptop ("Hello World!") and am running it on ...
1
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0answers
29 views

DHCP server in separate broadcast domain and option 82

Recently studies of DHCP servers raise some questions, which I cannot find the answers to using Google. Many documentations state: "If there is only one subnet declaration, and no network interfaces ...
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3answers
99 views

Mapping one IP address to another in the 'hosts' file [duplicate]

The hosts file (%SystemRoot%\system32\drivers\etc\hosts) lets you make google.com point to, for example, 127.0.0.1 on your local machine, but what if I wanted to make, say, 192.168.1.5 point to ...
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1answer
50 views

What does it mean if a public IP address looks like a private IP address?

For example, I go to http://whatismyipaddress.com/ and it tells me that my IP address is 192.X.Y.Z. What does this mean? Isn't that a private IP address? How can I find my real public IP address? ...
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1answer
51 views

Actual Public IP different from Public IP shown on ip lookup

When I test my connection on services such as whatsmyip.com, I get 112.134.xx.xx as my public address. When I check the ADSL connection status on my router, it shows a totally different IP address ...
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4answers
165 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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0answers
88 views

Add second static IP under Ubuntu 14.04 Trusty

I am trying to add a second static IP-Adress to my Ubuntu 14.04 server installation. But so far I haven't had any luck with that. My first attempt was to add a virtual eth0 device to ...
0
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0answers
22 views

Browse web via multiple ips without proxy

I'am running a windows VPS and have purchased several ips for it. How can I browse the web from the server via one of the ips apart from the one set as default by the hosting company's router but not ...
0
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2answers
57 views

How do I find all known IPs for a given domain in Linux?

I am a developer on a project that uses amazon servers for testing. I am switching from using FoxyProxy to routing with iptables because it is more convenient. The trouble I ran into is that when ...
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1answer
126 views

Web Server Public ip address to be seen on webpage

I have a Raspberry Pi behind NAT running Linux and hosting a web server. I access the web page from outside via Yaler utility as I have Dynamic public ip address. Is there a way to show my current ...
0
votes
1answer
101 views

How to find the ip-address of an RT-N66U accesspoint

I just setup an Asus RT-N66U wireless router with an IP address of 192.168.1.3. After I got it working, I connected it downstream from a TL-R600VPN router, disabled its DHCP and then changed it (Asus ...
0
votes
1answer
46 views

Internet access without NIC card?

If have a USB modem dongle for INTERNET connection. Can i access INTERNET from a brand new desktop/laptop without NIC card using this dongle? I feel that the dongle is just a modem ( with a DHCP ...
0
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2answers
41 views

Can a website tell what device you're using? [duplicate]

If I were to visit a website on different occasions and from different IP addresses but from the same device, could a website potentially tell? If so, would deleting cookies prevent this?
2
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1answer
58 views

windows 7: assign static IP address [duplicate]

I want to connect two laptops with a crossover Ethernet cable, in order to synchronize them with ntp. One laptop runs Windows 7, the other one Ubuntu. On Ubuntu, in order to assign a static IP ...
0
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0answers
58 views

Find the remote VPN address of the network to which I am connected

I am getting Internet from a Huawei 3G data card in Windows 7. I just read about being anonymous on the Internet so thought I'd give it a try. I used PD Proxy for that, using a username and password, ...
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2answers
71 views

What must be done to guarantee continued IP address ownership? [duplicate]

There is a pretty high-level of guarantee that we can have continued possession of a chosen domain name as long as we renew it from our registrar (and provided that our registrar is not ...
13
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9answers
2k views

Why are Ethernet/MAC addresses needed?

I don't understand why Ethernet MAC addresses are needed. Can't all computers just be connected to the unified network and use IP addresses to communicate? For example, there is a following mechanism ...
0
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1answer
64 views

How can I tell if my ip address is static or not (Mac OS X)?

Well everything is in the title really... :-) I want to exclude my IP from my GA account but there is no point in doing that unless what I get from http://whatismyipaddress.com/ for example, is a ...
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0answers
67 views

Batch check if IP is within specific range

I'm trying to make a batch script to get local IP-address of active NIC (could be wireless or local). To get IP adress I have used following line: FOR /F "delims=[] tokens=2" %%a in ('ping -4 ...
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1answer
84 views

Visiting website with different IP Address each time? [duplicate]

I want to visit a site repeatedly, with different IP address every time. I tried using Tor to accomplish this (Use New Identity); It worked but it's too slow. Is it possible to arbitrarily reassign ...
0
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2answers
35 views

IP address pointing to the router instead of the domain

I set up a domain and I set the IP address to the IP of my server through whatismyipaddress.com. When I send a request to that domain, it connects me to the router instead of the computer. Does that ...
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3answers
118 views

My IP Address is Wrong?

I have 2 computers, and I checked the IP address on each computer, by going to this site. On both computers, the IP address is the same?! Isn't each computer supposed to have a unique ip address? ...
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0answers
81 views

Arch Linux device with static IP address, new router not finding the device

I have a device running Arch Linux on my network (Raspberry Pi to be exact) and I do not have a cable for the display. I typically used it by ssh client and had it configured for a static IP address ...
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3answers
149 views

Getting External IP via PowerShell

I would just like to Get External IP via Powershell Just IP address no header or anything. I try many things such as (Invoke-WebRequest ifconfig.me/ip).Content but it has this extra second line ...
0
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1answer
130 views

check if two IP addresses belong to the same router

I have several hosts from which I traceroute to the same destination. Is there a way to determine whether two IP addresses belong to different interfaces of the same router? Is it enough to check if ...
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2answers
89 views

Assigning same MAC Address to access points [closed]

I am working on a mobile application project which works on a local wireless network located on multiple different geographic locations(some supermarkets). In that for detection of that particular ...
2
votes
1answer
244 views

Will Windows renew IP address sometime after “ipconfig /release”?

On a Windows 2000 PC, I did a "ipconfig /release" to disconnect it from the network. After about 6 hours, I checked it again and it was still disconnected. But then about 17 hours after that, I ...
0
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2answers
503 views

Difference between private IP and public IP? [duplicate]

What is the difference between public IP and private IP? Does each machine have both a private IP and a public IP? Who assigns public and private IP? and how can a machine having only a private IP ...
62
votes
5answers
6k views

Why did the IETF specifically choose 192.168/16 to be a private IP address class? [closed]

Why did the Internet Engineering Task Force (IETF) choose 192.168/16 to be a private IP address classand not something else? Why specifically 192.168/16 and 10/8 and 172.16/12 and not 145.243/16 for ...
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1answer
153 views

Hide IP from flash objects

Running a flash plugin will make it able to retrieve my real IP address even if I'm using a proxy. Is there a way to prevent that?
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2answers
124 views

Switching to IPv6 - Do I need a router? [closed]

In the future, since every IP (IPv6 adress) is going to be global, we don't need to use NAT. So basically, why do I need a router on an IPv6-only global network? Why not just replace my router with a ...
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0answers
63 views

/etc/ethers is not being read by dnsmasq

I recently configured dnsmasq on Raspbian, and everything was working perfectly except that /etc/ethers wasn't being read (yes, I did uncomment read-ethers and remember to restart dnsmasq) - the ...
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0answers
24 views

I need a dynamic script for changing Host IPs depending on computer name that I can shoot over the network

Does anyone know how to make a Batch/Script, that I can modify, for looking up the host computer name and build the IP and gateway off of it. we have a simple setup of computer name refers to ...
0
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3answers
2k views

I changed the IP address on my router and now can't access the web interface

I changed the IP address on my bt home hub 5 router from 192.168.1.254 to 192.168.0.254 because I was trying to connect to an IP camera - big mistake. Now I can connect to the router but there is no ...
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0answers
87 views

Can't get access to my internal IIS Server?

Before I could get access to my IIS Server using its static private IP address (on the Windows Server 2012 itself), but now I can only access the IIS Server web page using its localhost and 12.0.0.1 ...
0
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2answers
947 views

is it possible to get IP address of a wifi that you are not connected to

Just like the question states. Is it somehow possible to get the IP address of a network that you don't have access to? For example, if you click the little wifi button on your task bar, and ...
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votes
2answers
11k views

Resetting ip address gives “media disconnected” error message

I am using my windows 8 laptop and I am successfully connected to my router and can access my internet with no problem. I want to get a new ip address. I opened up the command prompt and then typed in ...
0
votes
2answers
1k views

Get and reserve an available IP address from a dhcp server to use for my ip camera

I have a c# desktop app. I have an ip camera and I want to assign a static ipaddress to it. I need to be able to get a 'free/available' ip address from my dhcp server, reserve it and assign it to my ...
0
votes
0answers
144 views

Ethernet port on Linux machine not recognizing ethernet connection with embedded device

I have an atmel at91sam7x256 microcontroller that I would like to use for a TCP/IP communication. The very first step of my project is to be able to "ping" my board given its IP address. I have its IP ...
2
votes
2answers
88 views

Does OS X log my IP address?

I need to know which IP address I was using two days ago. Is there any log file in OS X that contains this information? Update: And Chrome for Mac could store this information somewhere?
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0answers
25 views

Router and PC IP Address Differ

OK, I have a router that is my central hub. I have a DHCP reservation set up to keep IP addresses constant across the network but when it comes to my main PC, the router shows the PC to be reserved ...
0
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0answers
104 views

qlen value in iproute2 output

I have the following output for ip addr: ┌─[hhfh:HHFH]─[Downloads]─[07:28 PM] └──$ ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback ...
0
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2answers
528 views

Is it possible to get different external IP Address for two different computers that connect to the same router? How?

I want to play an online game with my brother, but the game seems to prevent having two users use the same external IP Address at the same time. Is there any way to have two different external IP ...
0
votes
1answer
77 views

Changing IP address on a “shared” Wi-Fi router

I don't really know how to word this properly since I don't know the name, so, sorry for the odd question. In my situation, I lived on an apartment and they provide internet service on a monthly fee ...
0
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2answers
188 views

ifconfig command on mac does not show IP address

When I run ifconfig, eth0 is not shown, and only en0 is displayed: >> ifconfig en0 | grep inet inet 192.168.0.102 netmask 0xffffff00 broadcast 192.168.0.255 When I type My IP in Google, my IP ...
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1answer
23 views

How to get external IP addresses of 2 ISPs on Mac OSX

The next code displays the external ip of 1 ISP. curl ipecho.net/plain; echo Is there any code to display the external ip of 2 ISPs? My mac mini is connected to 2 internet providers. One in en0 via ...
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votes
1answer
319 views

Why am I connected to 65.52.240.48?

I notice my computer is connected to 65.52.240.48 using the firefox process. I looked it up it says the IP is in Redmond and "Microsoft Hosting" but I also get camtasia results. I have camtasia ...