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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Serial connection over `usbip` freezes client on connection close

I have a setup here where I share a (WIFI) connection from an Ubuntu Computer (Kernel version: 3.19) via NetworkManager to a BananaPi. An Arduino is attached to the BananaPi (Kernel version: 3.4). The ...
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1answer
5k views

How to Assign Public IP to a device plugged into the LAN port of a Wifi Router

I have these two public IPs from my ISP. As an example, let's say the two IPs are: XXX.XXX.XXX.180 and XXX.XXX.XXX.181. They are on the same range and right next to each other When I access the GUI ...
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0answers
42 views

How to route packets from application to ip address

Is there a way to make an application send packets to different address than one it selects by default, Right now i disable all other network adapters then i start the application and then it chooses ...
-5
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1answer
43 views

Change router ip address?

I got banned from a webstore for hitting refresh too many times. It banned my ip. I want to change my ip now inorder to access the site again.If i spook my ip will it force the isp to change the ...
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1answer
53 views

IP Address and threats [closed]

This will be an atypical question. My daughter was recently threatened over the internet(the content of which this site will not allow). We have attempted to work with the local police who know less ...
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0answers
7 views

remove link form Linux namespace

I created a namespace in Linux with 'ip netns add foo', created a pair of veth interfaces and moved one in the namespace. I set up IP addresses etc., so that now I can ping my 'foo' namespace from the ...
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2answers
715 views

can't ping to my public ip (I am using a 3G dongle)

I found my public ip by googling what is my ip which is a google provided service(The IP is shown above the search results). I tried to ping that public IP from another computer that is connected to ...
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1answer
34 views

TCP RST Connection - Netflix - Only on Linux

I wouldn't have asked this here, but I am at wit's end, this makes absolutely no sense at this point. I have been trying everything. I have a single iptables rule: -A POSTROUTING -o eth0 -j ...
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0answers
61 views

Remote Login to Asus RT-AC87U Router

When I try to "remotely" login to my ASUS RT-AC87U Router, I'm getting below message and I'm not sure what to do? External IP: 17x.xxx.xxx.xxx Internal IP: 192.168.1.xx to login I use: ...
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0answers
41 views

Detect whether ISP gave me public IP address

How do you detect if your ISP actually gave you a public ip address(static or dynamic)? I mean they must have given me a public ip but how do I know if they did not secretly made me to share it with ...
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1answer
3k views

Significance of priority in “ip rule” command

What is the significance of the prio option in ip rule add/del command? Does a higher priority for a rule give it preference over other rules in the table? I saw this piece of code online, without ...
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1answer
117 views

How do I use allow/deny in conjunction with set_real_ip_from?

My nginx backend server should only accept requests from my frontend, 1.2.3.4. However, I also want nginx to log the correct IP address, so I use set_real_ip_from. But by doing this, the allow rule in ...
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1answer
18 views

ADSL router - public IP for local network

Today I went to my friend and took a look at his PC. He has ADSL router ZTE ZXDSLl 831cii. So there is a telephone line to router and PC is connected to Lan1 of the router (there are also Lan2, Lan3, ...
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0answers
35 views

Ping: General Failure

I am facing a weird issue on my laptop that only Internet Explorer can access internet no other application, not even chrome, iTunes. When I try to ping any website I get an error. When I ...
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0answers
22 views

How can I check if my server enables IP spoofing through Source Routing

I have seen several articles and forum answers like IP address spoofing using Source Routing. All these articles/answers claim that the most of servers already defend me against this attack. But I ...
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2answers
2k views

What happens if 2 devices want the same static IP address?

I don't know much about IP addressing. In my mind, static IP addresses are something that a device requests, asking for a specific address. With that approach, what happens if 2 devices attempt to ...
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2answers
92 views

Using DHCP to get two different IP addresses for two NICs on one Machine

I am using Debian 7.0. I have one machine with two NICs connected and I want to assign two static IP addresses to this machine. Here is my configuration in /etc/network/interfaces : # This file ...
0
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1answer
20 views

What causes this extremely strange Port Forward behaviour?

The scenario Basically, for about 10 years I lived in a country where my ISP gave me a NAT'ed address on their end (MAN). So I couldn't port forward unless I paid. However that was not an option. I ...
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1answer
25 views

Trouble finding the IP adress

I use my android device to connect to my desktop. for some reasons I need to know my IP address. so I checked with Opera mini, uc browser and IPtools. and all shows a different IP address. and I'm ...
2
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1answer
318 views

One or more network protocols is missing on this computer

I just rebooted my Windows 10 PC, tried to connect to the internet and got a message saying "One or more network protocols is missing on this computer". The Windows troubleshooter is unable to fix the ...
117
votes
7answers
5k views

Why can't I email myself at: MyEmail@74.125.235.55?

I opened cmd and typed ping gmail.com. It shows me: C:\Windows\system32>ping gmail.com Pinging gmail.com [74.125.235.55] with 32 bytes of data: Reply from 74.125.235.55: bytes=32 time=6ms TTL=56 ...
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votes
1answer
1k views

Same Public IPs is possible?

As I understand two computers can't have the same public (external) IP address. Except for if those two computers are connected via the same router, then they can have (share) the same public IP ...
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1answer
42 views

Public IP address range

To setup SSH, Amazon asks us to Enter your network's public IP address range What is my public IP address range, and where can I find it? Is this a range that is provided by my ISP? Are there ...
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9answers
17k views

How do I find the IP address of a virtual machine using VMware Fusion?

Can I determine the IP of a virtual machine using VMware Fusion without actually entering the operating system running on the virtual machine? I'm looking for a menu option, command line, or otherwise ...
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0answers
53 views

How do I get my nginx server on the internet?

I have a personal website and it's very small, therefor I don't want to pay for it be hosted online. After a few days of research I decided to install vmware with linux ubuntu-server 14.04 with an ...
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1answer
23 views

IP ping works but domain name doesn't

I am working on two VMs, the domains are ArcticIce.com and GlacierIce.com They have static IPs 192.168.100.1 and 192.168.100.2 DNS running on ArcticIce.com I ran into this problem when trying to ...
56
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4answers
40k views

How to make ssh tunnel open to public?

Well, referring back to this question, I am running the command ssh -R 8080:localhost:80 -N root@example.com on a Mac. Yet the port that is being tunneled is not working publicly. I am running such ...
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0answers
27 views

OSX ntpd service tried to connect to unknown IP?

I noticed a connection attempt was made from the ntpd (time daemon) service to 180.97.106.37, which looks to be from China. The only mention of the IP I could find was referenced in this report ...
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0answers
32 views

IP release and renew return the same IP on a new LAN with different IP scheme

Something strange I've encountered for the first time. Windows 7 PC was movied from one LAN to another and still kept getting the same IP address from DHCP as it did at old LAN location. For example, ...
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votes
1answer
37 views

How to access a linux server with private IP from outside network? [duplicate]

I need to access a linux servers with private ip form any network. Usually I use VPN to access those servers. But want to access without VPN. Can you guys please tell the settings need to be done on ...
0
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1answer
33 views

How to get a network of different IP addresses on IPv6?

Does anyone know if it is possible to get a network of different IP addresses on IPv6 (not sure if they have it in my area?). What I'm thinking is maybe I could have a little network like at work now ...
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3answers
7k views

What is the “Alternate Configuration” tab in TCP/IP settings

As I know there is two choice for configuring a computer IP address in the network. Assigning a Static IP or obtaining a dynamic IP from a DHCP server. But what is the Alternate Configuration in ...
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0answers
35 views

Many LXC (with Proxmox) behind a single IP address

I want to use different LXC (Linux Containers) with the help of Proxmox running on Debian. At the moment I have only one public IP Adress provided by my hoster. IP Adress: 193.111.140.1XY ...
56
votes
4answers
6k views

How do web servers know whether you're using direct IP address access?

Some web servers, when accessed using their IP address, return an error that direct IP address access is not allowed. I've been wondering for some time how this works. I mean, doesn't the browser ...
0
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1answer
27 views

Why is the ICMP protocol considered to run at layer 3 when it is a payload for the IP packet?

Why is the ICMP protocol considered to run at layer 3 on the wikipedia page ? (same layer as IP) when the ICMP protocol data is a payload of the IP packet? this is the article on wikipedia that ...
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6answers
2k 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 ...
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1answer
40 views

Are services accessed via External IP address slower than internal IP address when local?

I've got my NAS at home. Of course, I can access it via the local IP address (192.168.x.x) and the public (remote) IP address (84.x.x.). My only option when I'm outside is via the external IP address, ...
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1answer
38 views

Apparently inexplicable packet-loss; possibly causing slow Skype connection despite speed-tests showing good up and downstream speeds at both ends

I have done a look Whois lookup on my IP Address which is returning [redacted by instruction]. We're currently connected via Skype so I know transmissions are sending; however, when my friend attempts ...
2
votes
0answers
443 views

Windows 7 gadget or app that shows stats on multiple network interfaces?

I am looking for a Windows 7 gadget or app that I can leave on my desktop/sidebar. While there are many gadgets that will display network interface info (such as current IP, gateway, etc), what I ...
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0answers
48 views

Trouble With Port Forwarding Due to Unknown Causes

I cannot port forward correctly, and haven't been able to do so for some time. After my family switched to Comcast Business Class, I couldn't port forward anymore. I've just realized today that the ...
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0answers
16 views

Temporary server using current IP

I've got a XAMPP running on my computer and I've got dynamic IP. However I would like to temporary change my computer to a server, using current IP, so someone from outside will be capable of entering ...
0
votes
1answer
21 views

Wikipedia page modification [closed]

On a specific Wikipedia page someone (dynamic IPs, so I cannot recognize who) is continuously trying to erase a piece of historical information from that page (the page doesn't deal with politics). I ...
8
votes
3answers
43k views

“Ethernet” doesn't have a valid IP configuration

I'm using an ethernet cord to connect to my internet and it has been working well until Thursday morning when I turned on my laptop (Windows 8) to see a yellow triangle sign in the bottom right hand ...
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votes
1answer
28 views

Default Gateway is a proxy server not router?

Default gateway of my hostel in college is not the router. Infact, its the server of my college which is 10.x.x.x(I think its a proxy). So if someone wants to connect to the router to change its ...
0
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1answer
17 views

disable local connection when internet connection lost

My topology is like this.. Server (PC) with 2 Network Connection 100.50.50.5 / Broadband Stick (Broadband / Internet Access) 192.168.5.101 (Local Network Connection / No Internet Access) Client ...
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1answer
40 views

How do I stop nginx from serving requests on my public IP?

I am serving 2 public sites on a Pi from my home network using nginx on Ubuntu Server. My domains point to my no-ip account; both domains work perfectly. However, going to my IP address returns one of ...
78
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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 ...
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2answers
81 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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2answers
34 views

what distinguished OSI from TCP/IP in practice?

so i am going through cisco ccent/ccna. working through the text on my own just for general useful knowledge. so in the early part of the book it goes into describing the different layers of the ...
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1answer
27 views

My domain name wont work locally but works externally

I have home server ip 192.168.1.10 and domain name eg example.com which is from namecheap. i did pointed to my Dynamic Ip have have ddclient that update my ip to namecheap A records . also i have my ...