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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How to find the last IP used for an expired domain name?

Is it possible to look up the last IP address of an expired domain name?
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Assign IP address to a Virtual Printer

Is it possible to assign an IP to a virtual PDF Printer? Is there any Virtual printer software that automatically can do this?
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157 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 ...
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132 views

Xen VPS with 2 IPs from 2 different subnets

I am new to Xen and I am trying to understand how to add 2 different IPs on the same guest VPS. First, I am going to explain my node setup, which is a physical server with 32GB RAM and 2 NICs on it. ...
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582 views

Why does my cable modem have two IP addresses?

The internet setup at my home is as follows: I have a cable modem (192.168.100.1) connected with a coaxial cable. The cable modem is connected to a wireless router (192.168.1.1) via an ethernet ...
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5k views

How are IPs assigned on 3g networks?

I am a mobile apps developer who has run into some strange and interesting problems with 3G connections. We develop applications using both the Twitter API and Twitter Streaming API. The normal ...
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39 views

Is there any reason not to use the external IP when accessing local resources?

Until recently I had always assumed that accessing the external IP address from within the LAN would go out to the internet and then back unless specially configured in the router. Apparently, if it ...
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92 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" ...
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142 views

*.org domain websites are not loading

The problem is that any page with *.org domain in not loading on my computer (Ubuntu 14.04). Any other domains like *.com, *.net are loading! This is very strange. I tried in different browsers, and ...
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170 views

How to mitigate IP fragmentation attacks before reassembly when authentication information is available?

I'm trying to filter incoming traffic to high bandwidth, low latency network, to mitigate DDOS. The incoming traffic is custom UDP (I'm setting the protocol specs so I can force IP headers if ...
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483 views

Add a VLAN for virtual machines to Tomato USB

I've got an ASUS RTAC66U with Tomato Shibby 1.28 v115 installed. I've got some VMs with which I'm trying to replicate a set of servers, down to IP address to debug some stuff. I've set the VMs to ...
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688 views

cant access my site is my ip blocked by ISP

I want to know if my ISP has blocked my website www.indolog.com . If i use another ISP it works fine. Below are the tracert log C:\>tracert www.indolog.com Tracing route to indolog.com ...
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Routes with question marks in routing table

When I do ip route show table all I see some routes with question marks in them as below. multicast ???/32 from ???/32 table default proto none iif eth0 They appear to be multicast routes. I ...
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327 views

Problem using web ip check with squid

I've got all my web traffic running through Squid using iptables: Chain OUTPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere ...
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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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57 views

Single website inaccessable through broadband / ethernet

I'm having difficulty accessing a single website on either of my two desktop computers, connected to the router using wired ethernet However it will work from my mobile phone connected across wi-fi ...
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How does AWS convert an IPv6 address to an IPv4 address when whitelisting “My IP” address

I recently had to whitelist my IP address in an AWS security group using the "My IP" option. It worked perfectly and displayed an IPv4 address, but when I looked up my IP address with Google I got an ...
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16 views

DHCP-Enabled Router Sometimes Won't Talk to Host with Static IP

I have a Windows 7 host connected to a router running DD-WRT. The router is running a DHCP server. For reasons I don't need to detail here, I have set a static IP on the host, as opposed to ...
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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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227 views

Trying to block Agar.io android app connection on wifi

I want to block access to Agar.io completely from android devices in the house, my internet is through virgin media with a SuperHub, I've played with port blocking(ports 443 and 1501-1551) and domain ...
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50 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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DNS zone files with more than one name pointing to the same IP

I have set up a local DNS and the forward zone file looks like this: $TTL 86400 @ IN SOA ns0.mylocal.loc. root.mylocal.loc. ( 2011071001 ;Serial 3600 ;Refresh 1800 ...
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27 views

Connecting to a node server on mac from a local network

I want to test my app from an iphone locally, so I tried to access the ip of the mac it is running on (on the same network, and including the port: 192.168.1.101:3456) and it is not working. The ...
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“Local Area Connection” doesn't have a valid IP config

I’ve been trying to help my father regain his connection that abruptly ceased working. He runs his connection through an intermediary router that he uses as a switch; if that is important at all. ...
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156 views

Connect two devices with the same static IP addresses to a network

I have a problem where I have two individuals of a device with a fixed IP address that I cannot change and I want to connect them both to my network. If I had only had 1 device, I could use port ...
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How to show all IPs of network interfaces using “ifconfig”?

I am using the Kali Linux distribution and I came across this issue that I can't solve: when I type the command ifconfig in the terminal I get the following network interface infos: As you can see ...
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Outgoing traffic using Local(internal) PC IP address to a DDNS hostname

Sorry if the title is confusing. I have two devices connected through the internet. I need device A (Windows Server 2012) to send data down to device B, but unfortunately device B does not have a ...
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57 views

convert Ethernet router into integration gateway

I need to integrate to an Ethernet proprietary network. It is IP based but doesn't implement TCP. I need a router which will poll devices on this network, and periodically post the data using ...
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54 views

point multiple ip address to hosting

I have centos server, earlier it had 1 ip [ a.b.c.d ] (external ip , eg., 141.101.114.59). Now, I bought 2 additional ip [b.c.d.e , f.g.h.i] (external ip , e.g, 190.93.244.58 , 130.93.245.8 ). I have ...
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75 views

Wamp, Route External IP to one file and Internal IP and Localhost to Wamp HomePage

So I recently downloaded WampServer and was wondering if there would be away for me to be able to route my external IP address and my internal IP address, along with Localhost, to separate locations. ...
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103 views

Linux IP aliasing with single DHCP and single STATIC IP address

I'm working on an embedded system with a single physical ethernet device. Using aliasing, I'd like the device configured such that one static IP address (call it s.s.s.s) is ALWAYS available. The ...
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73 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 ...
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169 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 ...
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262 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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795 views

Can't ping IP in LAN

I'm using wifi router and I am not able to ping one laptop (A) from other laptop's in the same network. So basically I can ping from from A to B but not from B to A. A is using Windows and has Ubuntu ...
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303 views

multiple ip and subnets in virtual routed xen environment

I'm trying to setup a multi ip, multi subnet environment using xen on debian wheezy host. I have only one NIC and the guests are also debian wheezy. this is my original, working, ...
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IP rule table look up does not seem to work

I have a sytem with three network interfaces. Below is the configuration that I'm trying to set up. wlan0 (its actually an WiFi AP interface) - other devices connects via this interface. net1 - ...
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359 views

Blocking Incoming IP With Win 7 Firewall

This question was asked before, but the answer is not working for me and the rules of this forum say do not respond to answers, so I am asking again. I went through the following process on the Win 7 ...
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737 views

Can't externally ping my server

I set up an a Ubuntu Server with LAMP and am trying to access it externally. What I did: I set up an account at no-ip.com following this article I gave the server a local static ip of ...
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Problems with internet connection with bridged connection

I am having a problem with my network, at the moment it is setup like this: Wireless Router - Laptop connected to Wifi - Pc connected to laptop via ethernet and bridged connection between WiFi and ...
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85 views

Ask dnsmasq the hostname used to find to an IP address

I know I can find a DNS name from an IP address by using a reverse translation DNS query. But that just gives me a DNS name for that IP. Instead, I'd like to find the DNS name that was used to find ...
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143 views

Best ip configuration for unique dual router setup

current setup routerA--------------PTP dish link---------------routerB unique wan ip/internet unique wan ip/internet ...
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504 views

OS X : Use the same local ip Ethernet + Wifi

I currently have a Macbook connected to a Thunderbolt Ethernet adapter and as a backup it connects to the same network via wifi. I' using last years airport extreme as a router. I tend to do a lot of ...
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138 views

IP based tunneling using putty

under linux i learnt to establish an ip-based tunnel using ssh, doing this: # background tunnel ip based on tun5 sudo ssh -f -N -w 5:5 root@remoteserver # setup remote: tun5 ssh root@remoteserver ...
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526 views

Advanced QoS on prioritized first packages set by ISP

I have the following problem my ISP (Fibertel from Argentina) accelerates, 'enhances' the first 6.8 megabytes of downstream transfer and it's seems the first 1.8 megabytes of upstream transfer. This ...
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656 views

iproute nexthop not working - defining multiple default gateways

I have several point to point connections and I’d like to use all of them as default gateways. I saw this link which explains how to do this using load balancing by calling ip route with a next hop ...
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tc/netem and iptables: Delay traffic only from specified ip and port

I have a Ubuntu Router with 2 network interfaces. eth0 is the private network and eth1 is the internet. What I want is the following: All packages (mostly udp) comming from a specified private ip ...
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mod_geoip in local

I have to implement a geo location functionality on a Magento based website, thus php on an apache2 server. Obviously, in my local machine mod_geoip isn't very helpful. I was wondering if I could fool ...
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Route everything from some VLANs to a tunnel

I've set up a tunnel: $ ip tunnel add mytunnel mode gre remote x.x.x.x local y.y.y.y ttl 255 $ ip link set mytunnel up $ ip address add 172.17.10.2/30 dev mytunnel $ ifconfig mytunnel up Now, I can ...
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Is there a way to tell the difference between a direct connection and network connection

I want to configure a linux(ubuntu) machine such that when a direct connection is made with another PC my machine will enable a DHCP server and serve it an IP address, but if my machine is connected ...