The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.

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10
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4answers
385 views

Are IPs with and without leading zeroes the same?

I have a security system and the network setting only allows 3-digit IP address. I can't set it to 192.168.2.100, instead I have to use 192.168.002.100. Are these two IP address different? Do I need ...
1
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1answer
22 views

Website resolves with old IP address - only on my computer

So I've been in touch with my hosting as I'm locked out of my website due to it resolving with my old ip address (I have tested this - i'm locked out due to the fact my old ip address just displays an ...
0
votes
0answers
9 views

Get all the Up ip in the local network -java [on hold]

For the Java project i need to scan the list of ip connected to the same local network via wlan or eth0 or anything. I need to get the list of ip address that are up in the local network. I tried ...
0
votes
0answers
4 views

Unable to connect the Ubuntu EC2 instance to VPC LAN on AWS using secondary NIC adapter?

Infrastructure setup: VPC is created with 192.168.254.0/24 netwok Private subnet within VPC (Virtual Private Cloud) is created with 192.168.254.0/25 network Public subnet within the VPC is created ...
0
votes
1answer
12 views

How do regular expressions work in htaccess to redirect an IP range

I've been trying to redirect an IP range from one link to another. I can do it for a single 256 address block: RewriteEngine On RewriteBase / RewriteCond %{REMOTE_HOST} ^111\.111\.111\. RewriteCond ...
0
votes
1answer
21 views

Wireless Multicast transmission

I'm working on a high bandwidth application which uses multicast. Let's say there's 20 ip devices connected wireless to a router. One ip device sends a multicast packet to the multicast group. Will ...
1
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1answer
33 views

Domain name resolves to IP address in browser address bar

I have a site that I'm hosting on my home server, and I'm using a no-ip domain name. Port 80 is in use by another application on the network I'm using, so I set the no-ip account as a port 80 ...
-1
votes
0answers
16 views

IP config of a private network with a vagrant VM

I am following this installation document of a mapserver stack (on my Ubuntu Trusty 64): https://media.readthedocs.org/pdf/nodeshot/latest/nodeshot.pdf I am pretty bad at network/ip-settings. The ...
-1
votes
2answers
63 views

How do I determine who the ISP of an IP is?

I'm looking for a way to find the ISP of a given IP address. How do I know what ISP assigned this IP address to a user? Edit: Thanks for the information about whois lookup queries @LPChip and @AFH! ...
1
vote
4answers
48 views

How can I check what is my ip on any particular endpoint?

I know I can do curl curlmyip.com or something like that, but that just shows me the ip curlmyip.com is seeing. Is there any tool I can use that tells me what's my ip on the endpoint for any TCP ...
1
vote
1answer
38 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? ...
-1
votes
0answers
16 views

How does a network request know where to go? [duplicate]

When a web request is made from a computer, after it has been translated to an IP address by the DNS, how does it actually know where to go? For example, if I make a request to a site being hosted in ...
0
votes
0answers
12 views

Streaming same video on four different ports with same IP

I want to stream a video on four different ports on a same interface and also needs to receive in the same way. I think receiving is OK as i can have socket but how to stream the video in that way in ...
0
votes
1answer
38 views

IPv4 interface number

I came across a question in Self Test Software for MS Exam 70-642 Which command adds route to destination server, with IP address 10.51.0.0 and subnet mask of 255.255.0.0. Next hop should be ...
0
votes
1answer
41 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 ...
1
vote
2answers
55 views

Why does nslookup for espn.com give an IP that goes to go.com?

If I do an nslookup on espn.com, an IP is returned 199.181.132.250. When I put this value in the browser I get go.com. If I had add a 'Host header to the request, I still end up on go.com. What am I ...
0
votes
1answer
9 views

Overlapping address error in Packet Tracer-Possible subnet error

I am working on my hands on final exam for Networking Fundamentals. I have accomplished everything except for putting the 4 devices on two separate subnets. These are my subnet calculations: Given ...
0
votes
1answer
40 views

Does this mean the DoD is listening to my D-Link Router?

I've only recently been monitoring my router activity and this Incoming listing from a DoD IP address is almost always present. It looks as if they are using the IGMP Protocol to sniff at my domain, ...
0
votes
1answer
15 views

Propagating visitor IP through nginx

I have a node.js site fronted by nginx. So that when request gets to the site the IP in the request is 127.0.0.1 Is there anyway to modify the request while it is under nginx control so that node.js ...
2
votes
2answers
43 views

Specific ip settings for different wifi access points

I have a situation where I want to connect a tablet to two different networks, not simultaneously but switching from one to the other (and at different locations). The tablet is running on Windows ...
0
votes
1answer
39 views

Find IP with Batch

I need to use a command of some sort to find the external ip of the user of my batch file. I have tried many methods but I need the batch file to recognise the ip as a variable of some sort so it can ...
0
votes
0answers
21 views

Netgear WNCE4004 Wifi Adapter Connection Trouble - Static IP Issue?

Here's my situation: I'm in the military and live in an accommodation block where internet is provided by an unprotected wifi network (I'll call this 'service wifi'). To get internet access, I login ...
0
votes
1answer
25 views

Is blocking / allowing by IP using .htaccess (or equivalent) enough to secure a resource on a web server?

Currently in the process of setting up a web infrastructure to host my web application where security is the most important factor and I need to be able to allow only specific IP addresses to a ...
-1
votes
2answers
40 views

Why are IP addresses tied to a specific network but Ethernet addresses are not? [closed]

While IP addresses are tied to a specific network, Ethernet addresses are not. Why is this?
0
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2answers
34 views

What happens to a network packet originating from my IP as it travels through the Intenet?

I saw a video on YouTube that explains how the Internet works and it says my packets have an IP address and another IP address is wrapped around the packet at each junction of the internet. So my ...
0
votes
0answers
47 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 ...
1
vote
2answers
45 views

What IP address is DNS service returning?

Supposing I have a server on a network that has a private IP address, and somewhere on a another network is a client that has the same private IP address. It is possible beaucase they are on different ...
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votes
0answers
15 views

Creating a Global FTP access with Local ADSL IP [duplicate]

i'm a windows 7 user. i want to create a ftp for people out of network downloading my 30gig of data. I'm wondering if there is a way i can create my own ftp with global access. i have a local ftp ...
0
votes
1answer
28 views

Router handles wrong IP address

For a couple of days, my router (ZyXEL ZyWALL USG 20W) handles wrong IP addresses to several LAN devices. Where all my devices formerly got addresses in 192.168.1.*, they now get 192.168.2.* upon ...
1
vote
2answers
27 views

IP Route Add Issue

I'm trying to set up IE browsing with fixed routes in the route table. Before adding the static route, I can browse http://www.whatsmyip.org/ with internet explorer After I add a fixed route e.g. ...
-1
votes
2answers
132 views

Getting ip adress away from network

I use my old Iphone for remote controlling when i'm away from home. The problem is my service provider gives me dynamic ip adresses, so somethimes it changes itself. How can i know my home's actual ip ...
0
votes
1answer
19 views

How to securely get dynamic IP address of home network

I am running a raspberry pi and some services on my home network. My ISP provides a dynamic IP address as a public IP to me. I have port mapping and all set up so that if I get my public IP address ...
1
vote
1answer
32 views

Subnetting an already subnetted address further

I'm a little lost with a question given by my instructor in class and just wanted some clarification on my work. The question is - Given: IP Address: 133.64.128.0 /24 Want: 37 networks ...
1
vote
0answers
47 views

Extend existing IPv4 network by embedded System with its own network (different subnet)

I'm developing an "embedded device" using a self-made RTOS that should be connected to arbitrary customer IPv4 networks. Let's call this embedded device "master". Additionally to the NIC connected to ...
-2
votes
2answers
30 views

How to get server IP from given url [duplicate]

Can anyone tell me how to get the IP of a server, for example: https://capi-eval.signnow.com/api/document/ I need it for curl call, which might be slow because of dns. I can't get ip with ping ...
4
votes
2answers
185 views

Windows IP address cached even after cable unplugged?

I have a PC which connects to a network by both wired cable and wireless. Of course, it has 2 IP Addresses : 192.168.5.111 and 192.168.5.112. (Subnet mask 255.255.255.0) As usual, the PC picks the ...
0
votes
0answers
24 views

How to get my router to forward IP address to web app?

My web server is behind a Microtik router v6.1. My web app is only able to see the router's IP when referencing "REMOTE_ADDR" or "HTTP_X_FORWARDED_FOR" (asp.net app). How do I enable "IP forwarding" ...
0
votes
4answers
100 views

Is a switch just a simple router?

A switch connects computers together. As an example we set up a switch to create a network. When computer A wants to speak to another computer B, it sends the packet to the switch (it has the ...
0
votes
2answers
26 views

access over different IP network over the same cable

I have two machines: A and B A and B are in the same Ethernet network divided only be a switch but they have different IP network. A is on 10.0.0.1/16 and B is on 172.17.1.1/24. I have access to A ...
0
votes
2answers
23 views

Acessing samba shares on different internal network with different IP range

As you can probably see from my topography, my Raspberry Pi is directly connected to the ISP modem/router with an IP of 192.168.1.2, whereas my PC is one network underneath with an IP of 10.0.0.4. ...
1
vote
1answer
51 views

CentOS 7 can't ping from server

I'm having a Strange issue with CentOS 7. I have my server setup with 2 NICs a private network and a public network. I'm able to ping the server on both the private and public IP. But I cannot ping ...
0
votes
3answers
84 views

Find a computer's hostname by IP address? ping/nbtstat/nslookup don't work

Note: Windows environment (servers & workstations): I'm having a small issue here at work where a server went down and the (not very smart) tech guys don't know which server was until we give them ...
0
votes
2answers
23 views

confused on my allotted static ip addresses and hope to get clarity

I was given this for my dedicated server: xxx.xxx.232.80/28 From what I gather, my ip range is xxx.xxx.232.80 - 95 (or 94?) I'm not sure since I really don't understand what a broadcast ip does for ...
1
vote
1answer
36 views

Different servers on the same port ipv4 / ipv6

Say I have two TCP servers A and B. A is an ipv4-only server listening on 127.0.0.1:10000. B is an ipv6-only server listening on ::1:10000. Can I start these on the same machine? That is, how are IP ...
0
votes
1answer
19 views

Custom entry in hosts file not directing to correct IP

I have an entry in my local hosts file pointing to: $my-server-ip development.$client-domain.com When I ping development.$client-domain.com, I get $server-ip, but when I visit it in a browser, I do ...
0
votes
2answers
58 views

Why do some domain names contain numbers and strange words?

Here are some examples which appear under the foreign address field when I run netstat (on Win7): lhr08s06-in-e11 edge-star-shw-12-erc3 Why don't these look like standard internet domain names (eg. ...
0
votes
3answers
38 views

Understanding IP addresses on Linux machines

When I read /etc/hosts on my Ubuntu machine, the first two lines are as follows: ipAddr1 localhost ipAddr2 nameOfMachine Are these IP addresses characteristic to my machine or are they related to ...
3
votes
1answer
525 views

What information can my ISP see from my router?

I installed a new router today and saw my IP address change because the new router has a different MAC address and I am just curious on what information my ISP can see from my network. I know they ...
1
vote
0answers
30 views

How can I connect to UNC path on an external server in Windows Explorer?

I am using Windows Explorer and would like to connect to a certain IP address. After that, I want to connect to a different IP address through the server. Ex: A -> B -> C A is my current computer. B ...
0
votes
2answers
39 views

Link Domain to home server

I've bought a domain (for i.e. www.mydomain.co.uk) and I've a home web server with nginx and PHP5. I want link the domain with my static home IP. What should I do? What I did: I tried to put in name ...