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 know if my ip is changed?

my computer got stolen like a month ago (i got roved at my apartment) and i could not recover it so i had to buy another. On this new computer i installed ultravnc but i need a program that emails me ...
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25 views

figuring out if a network is using a static public ip address

Is there a way to find out without calling the service provider? Are there native tools built into Mac linux or Windows to enumerate this info?
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1answer
81 views

Policy route by source MAC address

I have a requirement to perform MAC based policy routing on embedded Linux platform (desktop Linux example will work as well) . I have examined the man of ip route add command and did not found ...
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2answers
58 views

SSH to my company's server

So I am working from home and I need to connect(SSH) to my company's server ever yday. The problem is that they have recently done an IP lockdown and only selected IPs can connect. My IP is not ...
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31 views

What happens when a spoofed source IP packet emerges out of a private network with NATing

Suppose as a attacker i want to have a Ping or SYN Flood attack that floods a server with Pings/SYNs .. If i change the source IP of the packets generated at my machine of the packets to a ...
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2answers
142 views

ifconfig command on mac does not show IP address

When I run ifconfig, eth0 is not shown, and only en0 is displayed: >> ifconfig en0 | grep inet inet 192.168.0.102 netmask 0xffffff00 broadcast 192.168.0.255 When I type My IP in Google, my IP ...
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3answers
526 views

One line command in windows to get computer's ip address over my wifi network

I have a windows server setup where I would like to get the wifi ip address of server dynamically. The problem is that ipconfig returns a huge string and the script I am using wants the address ...
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33 views

add to table not working with ip route

i have added two table names wifi and voda to /etc/iproute2/rt_tables. 255 local 254 main 253 default 0 unspec 1 wifi 2 voda Now i am trying to add rule to the ...
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21 views

Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
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41 views

Ping issues and configuration issues

My host machine has an IP 10.116.65.150 and my secondary machine is part of the same network. (( I did connect my laptop to the same ethernet and switch link as I had connected my secondary machine ...
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2answers
454 views

Sending multicast packet with source IP equal to virtual interface IP in Python

I have a system with a virtual network interface eth0:1, and I want to send multicast packets that have a source IP of that interface. However, my packets end up with the source IP for eth0. How do I ...
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1answer
65 views

Does IPv6 offer any security or performance over IPv4

Is there any gains or reasons to move to IPv6 other then the lack of IPv4? Is the protocol still the same as IPv4 or were there any major changes.
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1answer
124 views

what is DMZ in Router, how to make an private ip act like public ip

i have a d-link and i'm behind a NAT router by my ISP i knew that because i receive in my router wan IP a private IP, i forwarded port for my computer ip but it still closed so what is the solution ...
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3answers
1k views

Detect IP Conflicts on Network

I have a Wireless WAN network that I am managing devices on. We recently had an IP conflict that took us over 10 months to find (we had no idea there was even a conflict until we were pinging a ...
2
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1answer
131 views

local network - ping local ip fail

I have trouble to connect to own host, here is details debian is virtual host o virtual box grek@debian-dev:~$ ip addr 1: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN link/loopback ...
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2answers
1k views

Why am I seeing multiple different IP addresses reported as my public IP? [duplicate]

Could anyone explain why these sites are showing me as having different public IP addresses? www.whatismyip.com - 46.19.227.251 as my IP showmyipaddress.com - 46.19.227.253 as my IP ...
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2answers
147 views

How to find the IP address of a router

I live in a dorm where many students have setup small wireless networks. There are two of this networks that are very close to my room as the signal is very strong. Our college uses DHCP to assign IP ...
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1answer
141 views

How to properly obtain the ip ranges of a domain?

In order to shape traffic cheaply, I would like to know the address range of a particular domain, say google.com. First option is to do a reverse dns lookup for a range of ips that are close to the ...
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2answers
1k views

Multiple IPs on Multiple NICs same subnet

So, I've got two NICs: eth0 eth1 and I have multiple IP addresses assigned to each: auto lo iface lo inet loopback allow-hotplug eth0 iface eth0 inet static address 10.0.0.194 netmask ...
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1answer
1k views

How to know which DNS servers are resolving my computers requests?

My Win7 box is erroneously resolving a IP address. I had the same problem last week and "fixed" that by switching to Google Public DNS 8.8.8.8 and 8.8.4.4 for IPV4 and the others for IPv6. So when ...
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2answers
90 views

Can using a different DNS server effect ones IP address?

or more precisely: what websites perceive ones IP address to be? I've always thought your IP would stay the same and changing your DNS would just effect how it resolved others Names to IPs but ...
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1answer
59 views

WindowsCE device with single NIC - Two IP address ranges

People, I have got a question about a windows CE device which has a single NIC (and no possibility to extend the device with a second NIC). This device is configured to use a fixed address CE ...
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2answers
154 views

Concise IP information in OS X Terminal

Is there a command for the OS X Terminal that shows you only the most vital IP configuration information about your machine? I know there is "ifconfig" but that brings up a bunch of (in most cases) ...
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2answers
45 views

DNS- Use Different Domain

So I'm planning to purchase a dedicated server from Northhosts (northhosts.co.uk), and the company owner (I assume the guy runs the company, and also provides support to customers) gave me a test IP ...
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1answer
26 views

Routing table information

I want to find all the possible ip addresses my router can send packet to. I know there is a command route print that give let me see the default gateway, but I want to get all the possible ip address ...
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1answer
76 views

Get LAN and WLAN networks under same IP range

I'm a newbie in network stuff and haven't enough knowledge to do what I'm wanting for now, so I need your help, please. I've two networks, a wired and another wireless. The wired one is between two ...
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34 views

Ping IP/Hostname works laptop A to B, Can Ping Hostname but IP timed out laptop B to A

I have 2 laptops on home wireless network (Linksys Router). From Laptop A, I can ping Laptop B by hostname as well as by IP just fine. From Laptop B, I can ping Laptop A by hostname but when I ping ...
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127 views

Network Instable Connection over LAN, Airport Express works

I just got a cubox-i4 but have a big problem with the LAN connection. It establishes and crashes again. The thing is, that if I connect it via LAN to an Airport Express (connected via wifi), the ...
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1answer
83 views

Running a network of two wireless routers on a switch and two different DHCP servers plus some static ip addresses

The problem is as follows. I have two internet lines at my workplace. Both lead to two different routers. I have placed both routers on a switch via their lan ports and connected all wired computers ...
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93 views

How do I block incoming IP addresses on a Verizon FiOS Actiontec Router?

Recently, on my office's telnet port, various IPs from China or India or the like attempt to connect to the telnet port, but can't access it since they don't have the password, and the connections ...
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1answer
121 views

static ip cant be browsed locally-windows server 2012

we have a machine with windows server 2012, we used to host the websites through a static ip , the strange problem is we are not able to locally browse the hosted sites(within our lan ip doesnt ...
2
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1answer
71 views

Is it possible to use DHCP to obtain default gateway and DNS server only?

I have a few VMs which I want to keep with static IP addresses. However, I run those on my laptop and frequently connect to different networks which use different default gateway and different DNS ...
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136 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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1answer
149 views

How to access web server from multiple devices by name instead of IP?

I have a php site running on a local XAMPP web server. I would like to be able to access the site from multiple devices (other desktops, laptops, iPad and Android tablets) running on the same LAN by ...
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125 views

Mac OS X trouble with certain hotspots

As an admin, it bugs me horribly when I personally have network issues I can't explain/get decipher - maybe you guys can shed some light. Running a MacBook Air with the newest incarnation of Mac OS X ...
0
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1answer
220 views

ipconfig does not show me my Ethernet NAS's true IP

I have a Synology NAS that's connected to my computer via Ethernet. When I run ipconfig, the IP address listed as the "Autoconfiguration IPv4 Address" for the Ethernet connection isn't right. I ...
2
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1answer
38 views

2 routers get IP

I've got two routers that separate my computer from the internet, now I need to get the external IP of the second router to port-forward a connection through both routers to my computer. I tried it ...
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3answers
73 views

Determinte Switch IP/Linux

i'm trying to determine the ip of the network switch several linux boxes are plugged into. Background: i need to know in which physical port they're plugged in, so the machines automatically detect ...
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2answers
150 views

Is DNS query a UDP or TCP?

I know that when we first type an address on the URL and enter. The DNS query starts. I don't who initiates, but my guess is application will only initiate the DNS query. The DNS query already knows ...
2
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0answers
50 views

adhoc networking in decentralized way

I am trying to create a adhoc network in which I am going to use one or more android devices to connect to laptop(s). Say laptop A, laptop B, Mobile C, Mobile D. I rooted one of my android device and ...
0
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4answers
885 views

Why my subnet mask is not matching with my IP address?

I have a class 'B' IP address 172.16.XXX.XXX in my machine. My Subnet mask is 255.255.255.XXX. I am studying networking now. So until now I didn't care about masking about all. But from Wikipedia I ...
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0answers
178 views

windows 7 block IP broadcast message

I am running a client application on my Windows 7 machine, it sends a IP message to another server machine on the local subnet, then server reply with a broadcast IP message with destination of ...
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4answers
662 views

finding MAC address from a remote computer using a private IP

I want to know the MAC address of a device from a remote computer. I also want to know the security threats if somebody knows my MAC address?
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3answers
76 views

Choosing from two IPs on a single machine

I have a server running on Windows Web Server 2008 R2. The server has two IPs that can be used to reach this server from the outside of the network. I need to connect to a game from two different IPs ...
5
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3answers
1k views

How to message any user on your LAN?

I have admin access to all (read most) the machines on my LAN. However, I wanted all users to be able to coordinate with each other. How should I approach this problem? One solution which I can think ...
0
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1answer
2k views

Multiple static WAN addresses on Asus RT-N66U?

I'm trying to configure multiple static IP addresses on my new Asus RT-N66U router, I had fiber installed yesterday so my old Thomson router won't work any more unfortunately. Previously I ran a ...
5
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3answers
1k views

Is it bad to disclose external IP to strangers?

I was looking some examples on how to connect mysql/tomcat from a remote system. (ex1, ex2, ex3) I have just provided some links though there are many available. In all the examples I have seen ...
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3answers
341 views

10.x.x.x IP address found in traceroute

From what I've read, 10.0.0.0 - 10.255.255.255 is a private address space. So I ran a tracert over the internet and I saw an address 10.15.25.98. How is that possible? Thanks in advance! Tracert Log: ...
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1answer
215 views

Need Multiple IP addresses from one PC

I'm using it for online games and running programs for friends out of one PC. Limits will be placed soon, so my question is: how can I get a different IP address for each account loading up from one ...
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1answer
4k views

Communication possible between 192.168.0.x and 192.168.1.x?

I have a problem I encounter on a regular basis. I have an access point with a fixed 192.168.0.x IP address. My network is 192.168.1.x. The problem is when I plug the access point into my network, it ...