Questions tagged [ip-address]

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

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38 votes
10 answers
276k views

How can I make my IP address appear to be from another country?

How do I make it appear that my IP address is coming from one country while I'm located in another? I live in Germany and some websites (like Hulu or Youtube) don't work because my IP isn't in the US. ...
user avatar
384 votes
4 answers
55k views

Why does pinging 192.168.072 (only 2 dots) return a response from 192.168.0.58?

I mistakenly missed the dot off of an IP address and typed in 192.168.072. To my surprise I connected to a machine at 192.168.0.58 If I ping 192.168.072 I get responses from 192.168.0.58. Why is ...
George Duckett's user avatar
30 votes
9 answers
69k views

Is it possible to host a web server from behind a NAT

My PC is behind a NAT router that has a public IP address. If I want to host a website then I believe I need a domain name which I can purchase from some site which would pledge to resolve all DNS ...
Rohit Banga's user avatar
  • 2,414
52 votes
15 answers
84k views

Fastest method to determine my PC's IP address (Windows)

This may seem trivial but I'm looking for the quickest method to determine my PC's IP address within my network. This changes regularly as I connect from one network to the next via DHCP The ...
4 votes
7 answers
2k 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 ...
lostInTransit's user avatar
114 votes
6 answers
29k views

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

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 ...
Cornbeetle's user avatar
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38 votes
6 answers
133k views

Why is there a difference between ping "localhost" and ping "local IP address"?

Using cmd and ping on Windows gave me the following results: Pinging "localhost": Pinging "192.168.0.10" (local IP address): Aren't both situations exactly the same? I mean, I'm pinging the same ...
Diogo's user avatar
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58 votes
2 answers
195k views

What is Windows command to convert machine name to ip address and vice versa?

I need to know the ip address of another machine in a lan network. What is the Windows command for getting ip address from machine name and vice versa?
Bob's user avatar
  • 3,195
42 votes
3 answers
151k views

Why is Windows' default IP address 169.xx.xx.xx?

My Windows system got an 169.xx.xx.xx IP address the other day, and I fixed the issue, but why did Microsoft chose this address as the default? Why not 1.xx.xx.xx or 255.xx.xx.xx? Did one guy at ...
Adam's user avatar
  • 1,803
6 votes
2 answers
33k views

Is 225.225.225.128 a valid subnet mask?

I have been told that we have two devices on a network: 10.40.225.142 and 10.40.225.144 These devices both have Gateway 10.40.225.129 Subnet mask 225.225.225.128 (note 225 is Not a typo) These ...
Matt Wilko's user avatar
347 votes
5 answers
182k views

What's the difference between 127.0.0.1 and 0.0.0.0?

I understand that 127.0.0.1 points to localhost, and so does 0.0.0.0 (correct me if I'm wrong). So, what's the difference between 127.0.0.1 and 0.0.0.0?
Sagnik Sarkar's user avatar
57 votes
3 answers
100k views

What is the 127.0.0.2 IP address for?

I'm running the example in hiredis, which is using 127.0.0.2 as the Redis server IP, and it is running properly. Actually, the redis server is running on the same machine. I know that 127.0.0.1 is the ...
user avatar
45 votes
2 answers
51k views

How does a NAT server forward ping ICMP echo reply packets to users?

NAT uses an IP address port number combination to hash the outgoing requests. Since ping requests consist of ICMP echo request packets, they do not have any associated port number. How does a NAT ...
Rohit Banga's user avatar
  • 2,414
20 votes
4 answers
124k views

Get IP Address from TeamViewer without connecting

Is it possible to know the (public) IP address of a computer where TeamViewer is ready for a remote control session - without connecting to the computer?
Otiel's user avatar
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18 votes
7 answers
87k views

Is there a way to disable the DHCP client in Raspbian Linux on a Rasperry Pi?

I have a Linux server (Rasperry Pi using Raspbian as OS) that should be using only static IP. However I noticed that it also has got IP from DHCP server (The IP given out by DHCP is 192.168.111.2). ...
Madoc Comadrin's user avatar
10 votes
4 answers
36k views

Why can't IP addresses start with 0 or 255?

It was specified somewhere (presumably in an RFC) that Class A addresses range from 1-126 in the first octet, and that class E addresses range from 240-254, but that leaves out two potential networks ...
Odyssey's user avatar
  • 257
10 votes
3 answers
58k 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 ...
StealthRT's user avatar
  • 994
10 votes
5 answers
11k views

Why is ip address listed as 172.18.0.150/24?

Why is IP Address listed with this notation 172.18.0.150/24? I mean the ip is 172.18.0.150 only why it haves /24?, and then whatever what subnet that is on should be someone else's worries, no? 3: ...
JohnyTex's user avatar
  • 337
75 votes
3 answers
97k views

Can someone please explain ifconfig output in Mac OS X?

When I do ifconfig on my Mac, I get a list of the following interfaces: lo0 gif0 stf0 en0 fw0 en1 vmnet8 vmnet1 I wonder what each interface is. Also, which of these is the IP interface ? I don't ...
euphoria83's user avatar
43 votes
9 answers
484k views

How can I ping a range of IP addresses simultaneously [closed]

I have a bunch of machines on an IP address range which I want to ping simultaneously as a quick and dirty way of telling which ones are switched on. What (free) software can I use to do this? I'm ...
Jon Cage's user avatar
  • 2,577
29 votes
5 answers
137k views

What's the meaning of 10.0.0.1/24 address of my computer (from the "ip addr" command)?

What's the meaning of 10.0.0.1/24 address of my computer (from the ip addr - command)? Why is it 1/24 and not 0/8? Why is it using the 10.0.0 range and not 192.168.10?
Ben's user avatar
  • 1,377
28 votes
14 answers
21k views

IP Address vs MAC addresses

why do we need ip addresses if mac address is enough to identify the machine???
14 votes
2 answers
83k views

How to get the real IP address of someone using a proxy?

I was researching digital goods and security when I stumbled upon this company. One of the services they provide is "Real IP". They claim to be able to get the real IP address of users even when ...
Michael Prescott's user avatar
13 votes
4 answers
14k views

Is there a way to obtain the true IP address of someone masking their IP? [closed]

There is someone harassing me through emails and I need to know if there is a legal/legitimate way I can obtain their true IP address. They started masking their IP address after I used the email ...
helplessly_harassed's user avatar
12 votes
5 answers
133k views

How To Find My Previous IP Addresses

Is it possible to find out what IP addresses a computer has been assigned by their ISP in, say - the last six months? I know the current IP address but would like to see the one before that, and ...
Taptronic's user avatar
  • 1,101
12 votes
1 answer
103k views

Port is open, but can't access it via external IP address

I have RavenDB running on localhost:8080. I would like to make it externally accessible, just as a test (ignore security concerns for now). To do so, I configured my router to forward external port ...
DumpsterDoofus's user avatar
7 votes
1 answer
21k views

Why do I need to renew my IP address every time I start my computer before I can get internet access?

I have a very weird problem that has just popped up out of the blue. When I start my Windows 10 machine I don't immediately have access to the internet. I can connect the the router but I have no ...
CiaranWelsh's user avatar
  • 3,066
7 votes
5 answers
61k views

How do I extract the IPv4 IP Address from the output of ipconfig

I'm attempting to have cmd copy only a specific set of character from a command output. I've been able to select the line that the phrase exists in but from there I am lost. Here is my command so far. ...
Samuel Pauk's user avatar
6 votes
4 answers
2k 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 ...
Daniel's user avatar
  • 161
6 votes
7 answers
16k views

Make dynamic IP address fixed?

I am using Time Warner cable internet service. My IP address changes every couple months. However, I need to access some access limited servers which has firewall rules on it. Is there any way to ...
Stan's user avatar
  • 7,235
5 votes
5 answers
10k 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 ...
user avatar
4 votes
3 answers
12k 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.
Augustine Frendz's user avatar
3 votes
2 answers
5k views

Locally, External IP Resolves to Router Admin

I have a Belkin F5D7230-4 router, and I don't have many problems with it, however one thing which has always bugged me is that its admin page is accessible locally via two locations: 192.168.2.1 and ...
John M.'s user avatar
  • 238
2 votes
1 answer
30k views

Adding localhost entry to Windows\System32\drivers\etc\hosts file with port number

I have set up a local site under IIS 7.5 under port 900. to access it I should type localhost:900 in the address bar. I'm a little bit familiar with the System32\Drivers\etc\hosts file and I know I ...
Kamyar's user avatar
  • 301
1 vote
3 answers
10k views

How do I change my system's IP address?

I need to test my application when there is a change in the IP address. What should I do to change my machines IP address? Note: The IP address for my machine is obtained automatically. It's not a ...
HanuAthena's user avatar
38 votes
8 answers
53k views

How do I get cells in Excel that contain IP addresses to sort properly?

I am currently working with a large list of IP addresses (thousands of them). However, when I sort the column containing the IP addresses, they don't sort in a way that is intuitive or easy to follow....
Monomeeth's user avatar
  • 1,289
27 votes
7 answers
204k views

How to find ip address of my Asus RT-AC86U in Access Point mode?

I'm using an Asus wireless router model RT-AC68U and can connect fine to the internet using it wirelessly. I configured the router to be an Access Point, but having done so, I can no longer locate ...
WilliamKF's user avatar
  • 7,898
19 votes
1 answer
3k views

Pinging different IP address than what I entered [duplicate]

Can anyone please explain why CMD pings a different IP address than the one I am searching for?
Bob's user avatar
  • 311
19 votes
5 answers
10k views

How to go to a website on a shared server by its ip address?

I have a few questions, please help: Fist, I can access Google search just by typing http://74.125.224.211, because this is the IP address returned by nslookup. However, I could not do so with the ...
user1502776's user avatar
14 votes
8 answers
83k views

Command to find network interface for IP

With ipconfig I can show the list of network adapters and their settings, e.g. the IP address. I'm looking for a reverse command that displays the name of the network adapter for a given IP address. ...
Thomas Weller's user avatar
10 votes
9 answers
38k views

Can ping fine but no browsing

I've got a laptop which has a verified internet connection. I can ping www.google.co.uk and receive a response no problem. However IE, Chrome, Firefox, MSN messenger cannot connect to the internet. ...
m.edmondson's user avatar
9 votes
3 answers
65k views

How to find my VPN client IP in windows

When I run ipconfig and I get the following: C:\Documents and Settings\grmsrh14>ipconfig Windows IP Configuration Ethernet adapter Wireless Network Connection: Media State . . . . . . . ...
user avatar
9 votes
8 answers
8k views

How does DNS work when it comes to addresses after slash?

Watching the DNS and SNI of my network adapter in Wireshark, all I see is domain names and sub-domain names, but nothing after the slash, like no mention of example.com/page or twitter.com/mypage So, ...
user avatar
8 votes
4 answers
47k views

Is it possible to get the NAT Ip Address?

is it possible to get my nat ip address across the Internet? I know I can see my ISP address but not my internal address. I remember seeing this done one time but I am thinking it was a java applet ...
johnny's user avatar
  • 2,003
8 votes
3 answers
4k 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?
IT_07's user avatar
  • 524
7 votes
6 answers
42k views

Set up two (2) IP addresses on the same network card?

I think it is possible to set up 2 IP addresses and subnet masks on one NIC in Windows XP. How can this be done?
pro's user avatar
  • 193
7 votes
5 answers
30k views

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?
user29878810's user avatar
7 votes
3 answers
57k views

How can I redirect "localhost" to another local IP?

This is my situation: Two computer under the same router, 192.168.1.101 and 192.168.1.102 This is what I like to do: On 192.168.1.101, while accessing port 22 with localhost, it directs the traffic ...
keith's user avatar
  • 71
7 votes
6 answers
13k views

How to know the IP address of a Mac when it is in network

My Mac Mini is connected in a network (LAN). As every one knows, each connected machine in a network has a unique IP address. My Mac mini's IP address is: 192.168.32.164 My Mac is connected to the ...
sagarkothari's user avatar
  • 4,985
7 votes
2 answers
44k 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?
Jonathan.'s user avatar
  • 2,614