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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2answers
64 views

Server, laptop, router, and modem, IP addresses?

I have a simple server at home. The server is directly connected to the modem and has IP: 192.168.1.7 My laptop is connected to a wireless router, which is connected to the same modem. My laptop has ...
0
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1answer
75 views

how to access redmine which works on a specific port?

when I access Localhost a file management is installed there, Also I have installed redmine on localhost:3000, we have a network and people from other computers can access the domainname of this ...
0
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1answer
33 views

How to block certain IP addresses on UEFI system?

So I have several OS on my PC and I'm frequently changing this. Is there some way I can block certain IP address on my NIC so that I can't access it no-matter what. I'm thinking maybe if there could ...
0
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1answer
43 views

WWW displays different IP than Non-WWW [closed]

When i ping the domain.com i get X IP and when i ping the www.domain.com i get Y IP address. I have added the nameservers on the domain host to point to my web server. The web server IP is Y. When ...
0
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1answer
336 views

Suspicious activity on antivirus detecting port scans

Within 3 hours Bitdefender blocked 4 port scans of different IPs and Countries...I don't know what's happening. Can anyone suggest me what's going on? These are the IPs blocked! 197.89.232.231 121....
3
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0answers
193 views

Finding IP Address from MAC of a device in a different subnet

I am new to networking as such, but I have been searching a lot about the problem of finding IP from MAC for the past couple of days. I have a device whose MAC address I know and I have an Android app ...
1
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1answer
97 views

Resetting the IP address of a router without using the web interface

I recently purchased an Asus rt n12e-b1 to use as an access point or repeater, expanding my network's range. I had it semi-working until I decided to fiddle with the IP address, assigning it to 192....
-4
votes
1answer
67 views

Is the address 183.91.128.161 a network, host or broadcast address?

I am currently going through some work I have got stuck at theses questions, is anybody able to point me in the right direction, a example would be brilliant. IP Address given - 183.91.104.17 Subnet ...
0
votes
1answer
80 views

Is “One-to-One NAT” works in one direction only

I have created One-to-One NAT rule in my home DSLmodem/router, in order to allow a locally networked PC with web server installed on it and private IP address assigned to it (192.168.1.2) to ...
0
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1answer
64 views

How to set a proxy to disconnect network actions of an application from its configuration?

I'm trying to disconnect some application from network using its proxy configuration. I tested random ip and port values in my Mozilla Firefox browser but Firefox continues to open pages normally. Is ...
1
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1answer
88 views

Using Public IP (assigned from ISP) in local network

I'm an ordinary home user, who have 3 PCs, and i'm connected to the internet through an ordinary modem/router. I have received one public IP address from my ISP (in addition to another public wan one)...
3
votes
6answers
4k views

Windows 10 can't resolve hostnames - ping with IP works but not with hostname

Facts: The browser doesn't load any pages, whether they are addressed with IP or hostname. ping google.com doesn't work, returning Ping request could not find host google.com. ping 216.58.209.78 (...
3
votes
1answer
106 views

How to temporarily change the gateway of a secondary IP?

I have the following situation: route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.42.129 0.0.0.0 UG 0 ...
3
votes
1answer
50 views

how will DNS work under this circumstance (when no domain name specified)

Supposingly there is a host/server in the network with FQDN as "host1.example.com" Can i know what will happen when i on another workstation, do a "ping host1" assuming that host1 is not recorded ...
0
votes
1answer
130 views

How to get my router IP address (assigned by ISP via DHCP)

My router has a WAN PRIVATE IP address which is assigned via DHCP by my ISP. This is different from my public IP address of course. In my router settings page I can read it: 10.245.134.71, and ...
1
vote
3answers
187 views

Windows 10 - Network Limited, No IP

I have Windows 10 64-bit when I connected to my wifi, my wifi goes limited and doesn't work. When I troubleshoot my connection is saying first to enable VMWare adapters after that it says that you ...
0
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0answers
11 views

Analog web server file analyzer: how to include both IP and host rDNS in Host Report?

I'm using the analog (previously hosted at http://www.analog.cx) program to genenerate reports and have the Packet Source Host Report enabled and running fine. How can you tweak the report so that ...
1
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0answers
53 views

How to allocated different IP while crawling web pages

How can i assign different ip address while crawling I am crawling billions of page everyday(allocating different ip will help to handel blockages)
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1answer
43 views

Is it possible to have my website change ip address?

I was thinking about making a website on my Apache server. But it costs a lot to have a static IP/domain name and all of that. This probably sounds crazy, but does anyone know if it is possible to ...
79
votes
2answers
13k views

Why does Qatar use a single IP address when 800,000 IP addresses are allocated to it?

In discussions about IP address banning, IP 82.148.97.69 is often cited as an example. According to Wikipedia, this IP address is the public address of "the entire nation of Qatar". There are two ...
-4
votes
2answers
91 views

Class c private address of 192.168.1.0 what subnet for most amount of host addresses?

Can someone help me out? I'm sure it's 255.255.255.192 since we have to make it into 3 networks. Am I correct? You are the network administrator for a health authority in Idaho. The administration ...
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votes
3answers
90 views

What are the best Subnet IDs for maximum number of hosts?

I need help with this problem. I know it must be either A or D since subnet mask 255.255.255.224 has the most amount of hosts. I'm confused on subnet IDs could anyone clarify why subnet ID 224 would ...
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votes
2answers
66 views

47 networks on class b ip address to provide the maximum number of nodes per network? [closed]

Haven't been able to solve this question this entire day. Which network is the best and why?!? You are the network administrator for a new call center management company. The firm has 47 offices in ...
0
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0answers
47 views

Running peer block lowers the CPU usage - Am I being hacked?

Why is it when I start peer block my CPU usage goes down 20%? I've been using peer block not because IO'm file sharing but because I just want to better secure my computer. I use its default p2p ...
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votes
1answer
55 views

3 computers - 3 networks - 1 IP ADRESS possible? [closed]

So here's the thing. There is a certain website that me and a few other friends would like to use with the same account. The problem is that this website allows only one user to use it. So that means ...
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votes
1answer
53 views

Can two users have same public IP?

I want to detect unique user for my site. For this purpose I plan to use user's 1. Public IP and 2.Cookie But user can clear cookie(or even may not have enabled cookie). Then IP address will be used....
0
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0answers
61 views

Find/change noname IP camera IP address

Is there some way to find the current IP address of an IP camera, with it connected to the PC by the ethernet port? Couldn't find any information about this specific model online, and the camera is so ...
0
votes
0answers
100 views

Bridging Wi-fI Network to Raspberry Pi Zero over Ethernet, need to find IP address of Pi

I have used Windows 10's bridged networking feature to allow my Raspberry Pi Zero to connect to my home wi-fi via an Ethernet connection to my laptop. I am able to find the Zero's local IP address ...
0
votes
2answers
91 views

What is the correct formula for calculating the number of subnets or hosts you can create with a given number of bits represented by x?

I'm pretty sure it is 2x-2 but want to make sure I am correct. Anyone have a say and why? x2 + 2 2x + 2 2x – 2 x2 – 2
0
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1answer
207 views

DD-WRT Force New WAN IP Address

Is there a way to force a new WAN IP Address with DD-WRT? I know there was a way before that would require temporarily setting a new Local IP or Modifying the WAN but I do not remember.
0
votes
1answer
57 views

Why does Google use the IP address of local DNS servers to locate me?

Assuming that Google can figure out where a machine (with its given IP address) is roughly located, why doesn't Google use the IP address of a machine versus using the IP address of a local DNS server ...
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votes
1answer
58 views

My Public IP address

So I found out I can easily get my Public IP address from my work. I can ping it i can even log in to my router from work. How do i defend myself from this? what are ways someone can get into my home ...
0
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1answer
39 views

DOS attacks using cmd and protection against them

After finding someones ip you can easily send pings to them to make DOS attacks. Me and my friend tried to make a defense against them and wanted to know how a low level attacker can send this DOS ...
0
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0answers
35 views

Facebook URL timeout but ip works

This is a really weird case I came across and I was wondering if somebody could explain to me how and why this happened. Suddenly last night Facebook stopped being accessible. When I tried to access ...
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votes
1answer
58 views

1 WAN ways to switch between different routers to change IP address

I have 1 ethernet cable from my ISP, when I plug that cable to a different router and the IP address will be changed (IP wont change when I re-plug into the same router). So now I have bought lots of ...
0
votes
2answers
52 views

SMTP Inbound and Outbound Proxy, does it or even the concept exist?

I am a developer, and have a home lab. On it, I have a fully functional exchange server, and I would like to build apps where I can test its integration. A long story short, I am unable to send or ...
0
votes
2answers
29 views

Understanding the RFC1918 IP address range

Short version, what does it exactly mean, 192.168.1.0/24, or 192.168.0.0/16? Long version, I want to restrict my Squid server's Web Access By IP Address, and the article shows two ways, acl ...
0
votes
1answer
193 views

What is the exact use of a limited broadcast address?

I read that limited broadcast addresses will be dropped by the router. So, it's not used in the layer-3 (Network layer), where IP addresses are meant to be used. So, where exactly is it used?
0
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1answer
68 views

Finding public ip when using VPN

I am using Sercuritykiss VPN in Kali linux by adding a new VPN and connecting to it. They are providing a Gateway which is the address of the server and i use server in France and it has an ip 37.59....
0
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0answers
355 views

Different IP for each tab Firefox

I know there are some extensions that allow us to have different sessions in the same Browser, however they all are connected through the same IP address, I need to know if there is a way to change ...
0
votes
2answers
85 views

can anyone explain this completely random local IP address that appears on my network?

I have a DD-WRT router, and I am connected to a VPN. My routers local IP is 192.168.11.1. The VPN uses local address 10.10.0.6. However there is this strange IP address 10.16.128.1 that is always ...
4
votes
1answer
36 views

Batch file - splitting a default gate way in to it's component parts, adding a number then reconstituting

Basically, what I need to do is get the default gateway of a Win7 machine which I have accomplished with the below code: @echo off for /f "skip=1 delims={}, " %%A in ('wmic nicconfig get ...
3
votes
3answers
559 views

different IP's from ipconfig and whatismyipaddress.com

When I type in ipconfig in the Command Prompt, I'm getting 192.168.x.x as my IPv4, and if I go to a site like whatismyipaddress.com, im getting something with 80.50.x.x Why am I getting two different ...
0
votes
1answer
153 views

Raspberry Pi Keeps old IP and adds new static IP

Here is my /etc/network/interfaces: source-directory /etc/network/interfaces.d auto lo iface lo inet loopback iface eth0 inet manual auto wlan0 allow-hotplug wlan0 iface wlan0 inet static address ...
0
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0answers
204 views

OS X El Capitan can’t find network share

got a little problem with my OS X El Capitan Mac Mini Server. There are a few users in the network with a statical IP range vom xxx.xxx.xx.1–255 and you can access those clients via terminal or the ...
0
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1answer
39 views

How is an all 1's Broadcast in CIDR handled?

I'm confused how CIDR broadcasts work when using the all 1's address (255.255.255.255). From my early (Classful networking days), I recall that ping 255.255.255.255 from a machine on a Classful ...
0
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1answer
33 views

Capture only UDP traffic that cannot be identified as another protocol

I have applied the udp filter in order to just capture UDP traffic, as described in Wireshark Wiki: Show only the UDP based traffic: udp However, this does not only show UDP traffic. It shows ...
5
votes
6answers
2k 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. ...
0
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1answer
50 views

IP Address last octed with “_” character

I have an IP address of 192.xxx.xx.208_3 the last octet has an _3 what does this mean? It is a printer that I cannot ping. I want to add it to other computers but it does not list as a selectable ...
0
votes
2answers
133 views

Find out all IP addresses of all Computers on Network

I want to list all IP addresses with their Computer's names (if my IP was 197.577.52.4: 197.577.52.4 - Luca's MacBook) through Mac Terminal or Mac Software. I tried many terminal commands, but it ...