Network Address Translation, a technology used to translate a private IP address into a public IP.

learn more… | top users | synonyms

6
votes
7answers
17k views

How can I make my home PC a web server?

I am running Apache Tomcat on my PC. My PC is connected to a router in my house and the router is connected to my ISP. Now I want to run a server on my pc so that my frined can view my site hosted on ...
29
votes
8answers
76k views

How to do networking between virtual machines in VirtualBox?

I have two virtual machines in VirtualBox. I would like to do networking between them. For the moment I have the default configuration on both, but they seem to have the same IP-address 10.0.2.15. I ...
2
votes
1answer
986 views

Connecting to my own network via external IP

Even though I have seen and read quite a few similar Q's I was still unable to understand what is required for me to be able to do this. I have an internal network. One of the machines is a web ...
9
votes
2answers
9k views

how to access samba on a guest Linux behind the VirtualBox NAT?

On my laptop, I'm running Ubuntu 9.10 under WinXP using VirtualBox 3.1.2. I want a setup where: The guest can freely access the internet. The host can access the guest files via Samba. The setup ...
6
votes
5answers
10k views

Is it possible to host a web server from behind a NAT

My PC is behind a NAT router that has a public IP address. If I want to host a website then I believe I need a domain name which I can purchase from some site which would pledge to resolve all DNS ...
14
votes
5answers
8k views

SSH access to office host behind NAT router

I would like to access the ssh port of my office linux host from home. Unfortunately the host is located behind a NAT router. So, the IP address is not publicly available. There is however access to ...
7
votes
3answers
12k views

Connecting to VirtualBox guest (ubuntu) from host (osx) via NAT?

I have a VirtualBox guest (running Ubuntu) configured with NAT through my host laptop (running OSX). It was my understanding that with NAT configured, I could access the guest from the host (w/o any ...
3
votes
1answer
7k views

Accessing a website via the webservers public IP from a PC within the same LAN

If two machines reside on the same LAN (a PC and a Webserver) why is it necessary to enable ‘NAT loopback’ on the router in order for the PC to access the website hosted on the webserver using the ...
7
votes
8answers
25k views

How to get my external IP address (over NAT) from the Windows command-line?

The Windows "ipconfig" command can only show me the parameters from the Ethernet interfaces from my machine (even with the ipconfig /all argument). It can show detailed information about the ...
1
vote
3answers
2k views

enabling loopback NAT

I have a Qwest Aciontec Q1000 modem/router combo, which does not support loopback. I run a webserver on the LAN, and when I'm on the LAN, I can only access it by its local IP 192.168.0.201. When I'm ...
3
votes
1answer
2k views

Duplicate Name Exists error from virtual PC with NAT network configuration

Whenever I change the network configuration to NAT for a virtual machine running under Virtual PC 2007, I get "A duplicate name exists on the network." error. There is no other machine on my network ...
2
votes
3answers
2k views

How does the router know which device to send packets to?

my question does not concern how it moves through the internet, but how it moves through the router to a certain device. All devices connected to a router in a home network have the same external IP. ...
12
votes
2answers
3k views

How will home networks work in the IPv6 world?

Right now, I have a home network setup behind a Netgear router. That router has a public IP address I get from Comcast. I also have a computer setup on my home network running Linux that runs a DHCP ...
2
votes
2answers
4k views

Bridging my laptop's wireless and wired adaptors

I would like to be able to connect a desktop computer that does not have a wireless adapter to my wireless network. I could just run a network cable from my ADSL/wireless router to the desktop ...
7
votes
2answers
483 views

What do the various IP addresses mean?

When I visit a website (e.g. whatismyip.com) it states that my IP address is 13.151.xxx.xxx. However, when I run ipconfig, my IP address is 192.168.0.xx for IPv4 and my DNS adress is 202.xx.xxx.xx. ...
5
votes
3answers
6k views

VirtualBox NAT port forwarding on Ubuntu 64?

I have an Ubuntu 9.04 desktop 64-bit guest OS running on an Ubuntu 9.04 desktop 64-bit host OS (yes, the same OS). I'd like to run a web server on the guest and make it accessible through NAT on the ...
3
votes
4answers
3k views

how to ssh two computers behind NAT and Firewall, without third computer

I am trying to ssh into my Linux box at home. My home is a dorm-style environment - NAT and Firewall with personal laptop running Arch Linux. My work is corporate style Windows 7 - NAT and proxy ...
3
votes
2answers
1k views

VirtualBox network configuration

I have a CentOS 6.1 virtual machine, virtualized with VirtualBox on Windows XP. This machine hosts my local development MySQL server. I'd like to find the correct network configuration, so that: my ...
2
votes
2answers
232 views

Without NAT on IPv6, and only one DNS name, how do i talk to my servers?

Right now we own one domain name (e.g. superfault.com). From the internet i can connect to a variety of networked devices using that single DNS name: superfault.com ...
1
vote
2answers
150 views

Router Behind A Router

My condo building provides wifi. However they have a stupid terms of service window you have to accept before getting access. I wrote a script that can post automatically to that terms of service ...
1
vote
1answer
553 views

Why is my connection refused when port-forwarding?

This question is related to this: Application / Device setup for remote network connections I have a 2wire 3801HGV router and I made some firewall settings to open some ports on one of my connected ...
1
vote
1answer
533 views

Subdomains for server behind NAT

I have server (ip: 192.168.1.2, openSUSE 12.2, Apache 2) behind router (ip: 192.168.1.1, TomatoUSB Toastman Build). I'm using FreeDNS (afraid.org) and I assigned subdomain (say x.afraid.org) to ...
0
votes
0answers
175 views

Why can't I access MySQL server with port forward rule in router?

This is my setup (the relevant parts, anyway): I have port forwarding rules in place (in the Linksys) for all the relevant ports and I've restarted that router multiple times, each time hoping that ...
0
votes
2answers
389 views

Understanding port forwarding and NAT

I've got some confusion about port forwarding vs NAT. I know the problems NAT causes for P2P, and that there exist some solutions to it (STUN,TURN,etc) which require a relay server to setup direct ...
5
votes
2answers
3k views

Connecting to a VirtualBox machine from the host, using an ip address

In a macbook host, I run VirtualBox having a guest ubuntu server, with a NAT network setting. In the virtual machine application "Parallels", I would get on the host an IP address of the guest, to ...
5
votes
4answers
333 views

What hardware and OS should I use for my home router/server setup for good filesharing capabilities?

I would like to set up a new server at home that should be able to perform the following tasks: Act as firewall/router/NAT for my home network Share lots of files, mostley music Misc. other stuff, ...
2
votes
2answers
343 views

How does Http server distinguish between computers behind a router

HTTP servers usually operate at port 80. Yet NAT routers as most are these days assign port to outgoing requests so they would know when request is returned that which computer connected to it, it's ...
1
vote
2answers
336 views

ISP 5 Device Limit - double NAT the solution?

I have asked this question in response to another question here ( 5 Max connections/devices to the internet? Is my ISP limiting me somehow? ), but thought I should start a thread to see if I can get ...
1
vote
1answer
87 views

Why Wireless NIC Loses Its Lease To Router?

This constantly started to happen some time ago. I connect to my router andand lose every few seconds connection to router and it reconnects again. I have screenshooted most errors that Event Viewer ...
1
vote
2answers
529 views

Problems exposing a web site from behind a router

I have a D-Link DSL-2650U ADSL router for my home network. I also have my own domain server registered at dyndns.org, and I have successfully configured my router to keep [mydomain].dyndns.org ...
1
vote
3answers
9k views

Win 7: Share internet connection via Ethernet and WiFi

I have the following configuration: Box 1. Running Win 7, connected to the Internet via Eth0. Has one wireless network adapter and one another ethernet adapter (say, Eth1). Box 2. Running Win XP, ...
1
vote
2answers
1k views

Two public IPs behind a cable-modem using D-Link DIR-300

I have a cable-modem connection to the internet and I bought a router in order to share my internet connection betwen my laptop and my PC. The router I bought is D-Link DIR-300. The first weird thing ...
0
votes
0answers
10 views

Modem not assigning DNS

I have a ZyXEL P-870H-51A V2 VDSL2 modem. Currently, the modem connects to the internet, but computers require to use a static DNS in order to use it, otherwise they fail to reach a DNS lookup. ...
0
votes
1answer
6k views

DrayTek 2820 configuration using public IP addresses

I have a /29 range of public IP addresses assigned to me by my ISP. I'm trying to configure a SIP VOIP handset to register with my VOIP provider who recommend using public IP addresses rather than ...