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

learn more… | top users | synonyms

2
votes
2answers
96 views

Translating an IP Address again

I have a question about NAT(Network Address Translation). is it possible to translate an already translated IP address? would you please guide me why it is possible or impossible?
6
votes
3answers
8k views

Bridged vs. NAT: a Virtualbox and VMWare Comparison

I installed VMWare Workstation 7.1.x and Virtualbox 4.0.8 on two different hosts, so I could compare. I set the virtual network adapter on both to NAT, which was successful for both. The result: ...
5
votes
1answer
505 views

Rackspace Firewall/Gateway Setup

I have rackspace account and wish to have this sort of setup: Firewall/Gateway eth0 - Public IP (56.X.X.X) eth1 - Private IP (10.X.X.X) Ubuntu 10.10. Accepts connections from the internet and ...
1
vote
2answers
3k views

Can't access vm from other computers in the network

HOST OS: windows 7 64 Guest OS windows server 2008 32 Vmware Worstation 7.1 Network Connection Type: NAT I can access my application from the guest os using the computer name or localhost but if I ...
0
votes
1answer
113 views

route packets for 2 eth's

I have 2 ethernet cards on my 1st computer eth0 10.1.1.254/24 eth1 10.2.1.254/24 eth0 is connected to 2nd computers eth0 using crossover cabe which is 10.1.1.1 I can ping computer 1 eth0 from ...
1
vote
1answer
846 views

Network problems after installing text-only Fedora 14 using VirtualBox

A small background. I've just subscribed to virtual dedicated server running Fedora 14. But before starting to setup it, I've decided that it is a good idea to try all installing/configuration on my ...
0
votes
1answer
758 views

How to NAT DSL modem to a LAN computer?

I'm using DSL modem manufactured by Billion (China, i think), i have 2 computers sharing this modem. Now, I have a domain and want to A the domain to my modem's IP, however, when opening this IP, ...
0
votes
4answers
630 views

Running a server when all computers have the same WAN ip

I want to run a server on my machine so that anyone in the Internet may connect to it. But my Broadband internet provider issues the same WAN ip to all the customers while each of them has a different ...
1
vote
2answers
3k views

Setting up a Linux server with a public Static IP

I have setup a Ubuntu Linux server in an office. It should have a public IP so that outside users can access the internet. Currently, it is set with a public IP, but is it supposed to have a local ...
3
votes
3answers
1k views

How can my router have the same MAC as a computer in the LAN?

My ISP refused to give out a new IP when I switched from just having one computer in the LAN to using a router in spite of me doing a few releases and renews. So I tried an a little unorthodox ...
16
votes
5answers
11k 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 ...
-1
votes
2answers
125 views

Two easy networking questions

I have basic understanding of networking, but I just want to know to more thing I don´t understand. So, I have 1st Router, which is connected to DSL/Router and than internet. So my structure is this: ...
1
vote
0answers
137 views

peer to peer software vpn solutions?

Looking for a software based way to create a vpn for sales guys that will automatically reconnect if dropped (setup pptp dialin for moment but doesnt autoreconnect). I'm aware of Hamachi which is ...
0
votes
2answers
462 views

Why already set NAT info in router but not working?

I'm using ADSL service from ISP. The ADSL modem has only 1 LAN port and that port is connected to my PC. The LAN IP of my computer is 192.168.1.100, and I have apache running on localhost ...
0
votes
3answers
687 views

Remote socket connection C

I wrote a simple server application in C. I managed to establish a connection using telnet. The problem is that I cannot reach the server if I specify public instead of local ip in telnet. I mean this ...
1
vote
3answers
515 views

Why is port forwarding necessary for servers but not for clients?

Whenever I host a server, I'm required to forward the listening ports of the server on my NAT device. However, if I connect to a remote server, I won't be required to forward the port used for ...
1
vote
3answers
748 views

setting up the D-Link modem as a router

I have 5 computers and 1 D-Link modem that is connected to Bezeq (the infrastructure provider) All the computers and the d_link are connected to the switch. Currently only one computer is connected ...
0
votes
2answers
301 views

how to connect to my home computer when i was at company

i want to connect to my home's computer when i was at another place .but my home's computer is behind a router.and i can't set the router , cause it is not my. any way i can let my home's computer ...
0
votes
1answer
474 views

Need to connect to virtual box guest from host

The guest is a NAT device. From Ipconfig I can have an ip adress but I can't ping it from the host. do you have some ideas on how to connect to virtual box guest from host ? Host OS: 2008 windows ...
0
votes
1answer
866 views

Wireless router setup for 1-1 NAT

What I have: A linksys router WAG160N with firmware version 2 A "pool" of 5 external static IP's provided by my ISP 213.xx.xxx.n All the required configuration values for the static IPs such as ...
2
votes
0answers
665 views

After NAT how to setup VPN in windows server 2008 r2?

We have one windows server 2008 R2 with about 10 Hyper-V virtual machines. We've used wizard that comes when you enable RRAS to setup NAT, so that virtual machines can connect to internet (and to ...
1
vote
0answers
821 views

How can I port forward with an airport extreme and a NAT enabled modem?

I run an Actiontec HD701D modem with NAT to an Airport extreme base station to laptop etc. As you might expect I get double NAT issues. I tried a lot of different things to forward a port, but no ...
1
vote
1answer
975 views

loopback error, home network

I've setup my router to forward port 80 through to my computer, so I can access it from a dyndns.org domain. The domain and the ip both seem to be totally working, externally (can access it from ...
0
votes
1answer
873 views

How can I make my livebox route to my external IP address for a computer in the DMZ?

I have a sagem livebox 2 (Fiber optic model), and have placed my computer in a DMZ. People from outside of my network can access my comp fine via its external dyndns.org address, yet when I try to ...
0
votes
1answer
520 views

SSHFS between two firewalled machines via third-party proxy

Both my home machine and my destination machine are behind NAT routers I have zero control over. I have a non-firewalled VPS that I can use for proxying requests. How do I set up sshfs from my home ...
1
vote
1answer
3k views

UPnP port mapping client for Linux

Is there any client that can request mapping and unmapping ports via UPnP port mapping behind a NAT gateway? I had problem with PortMap. I want this mostly for testing purposes.
0
votes
2answers
434 views

Any consumer routers with Outgoing VPN support?

When I'm working at home, I need to be able to connect to three different outgoing VPNs, two of which happen to use the same internal IP addressing schemes (192.168.0.*). I also need a static address ...
2
votes
1answer
586 views

Change the NAT setttings on mobile dongle

Is it possible to change the NAT type on a mobile dongle modem? I've searched the web but couldn't find anything. Should I contact the ISP for this, is it even possible. At the moment it is set as ...
10
votes
5answers
3k views

Does NAT provide security?

I'm following discussions about the IPv4->IPv6 transition, and IPv6 doesn't seem to like NAT at all. I've always thought that NAT was helpful in v4 for some security, I know it doesn't really hide ...
2
votes
1answer
369 views

What's wrong with my MAC address?

I have a D-Link DSL-2650U router, and exactly one computer on the network. For reasons of port forwarding I want to give my computer a static internal IP address, so that I don't take the chance of ...
5
votes
2answers
4k 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 ...
0
votes
1answer
7k 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 ...
0
votes
2answers
439 views

DIR-615 lose internet connection after 3 minutes

I got a new DLink DIR-615 routeur. DSL model connects fine. Connected PCs connects to the internet fine (wireless, wired) fine too. After ~3 minutes, connected PCs cannot go to the internet. Web pages ...
3
votes
3answers
491 views

How to host a webserver through NAT?

I've come across many "How to host something while behind NAT" but none are like my situation (I knew how to host a server through a simple NAT anyway). This is how my ISP works... First, start off ...
3
votes
2answers
149 views

home network question regarding dhcp

My home network consists of a cable modem provided by the ISP, which is connected to a switch, from the switch 1 cable runs to the digital tv decoder/recorder also provided by my ISP and another cable ...
7
votes
3answers
14k 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 ...
1
vote
1answer
1k views

How to create a TCP tunnel in windows to allow remote->local connections in NAT environment?

So I know about SSH tunneling via a remote Linux server to reach sites which are blocked in my local network. My question is the other way around: I have a webserver running locally, which I can ...
0
votes
1answer
2k views

pix 501, static route to d-link router (different subnet)

I have pix 501 cisco firewall with internal ip 192.168.10.1. I have connected d-link router (dir-655) to pix 501. The d-link router has internal ip 192.168.0.1 The picture would like something like ...
1
vote
3answers
152 views

Forbid one ip to access the wan

I'm trying to configure my DLink DI524 to do the following: I've got a PS3 on the LAN trough cable and my router is configured with MAC filters (this part is OK and working). But now I'm trying to do ...
1
vote
1answer
296 views

would a portable NAT router assist for security when you're travelling?

Would a portable NAT router assist for security when you're travelling? In particular say for the cases: a) using your own laptop / on an open wifi / using a VPN b) using your own laptop / on an ...
0
votes
2answers
5k views

How to setup external static IP address

I have a block of static IP addresses (eg. 211.11.111.n / n+1 / ...), how can i set them up. Or at least one of them, I need one to be pointing at a server. More specifically, in my network connected ...
2
votes
1answer
6k views

What router settings are required for Windows 7 Remote Assistance?

I want to connect to someone's PC using Remote Assistance in Microsoft Messenger. Both PCs run Windows 7. The remote user is the one initiating the request. We're both behind firewalls/routers ...
0
votes
2answers
320 views

Can DHCP and NAT co-exist?

I am using a U.S.Robotics 9108 to share ADSL Internet access via both LAN ports and WiFi. Is there a way to allow each Windows 7 PC connected to it to handle its own port forwarding needs, rather ...
3
votes
4answers
3k views

How to ssh into home LAN behind ISP NAT (no public IP address)?

My property management company provides free internet access. All the apartments in many buildings are behind some common NAT, so none of us have our own public IP addresses. Thus, services like ...
0
votes
1answer
647 views

Ubuntu 9.04, Firestarter complaints even behind the NAT router

I'm behind a router. In router config, I blocked: all (inbound and outbound) UDP inbound ICMP Local iptables are configures with Firestarter wizard: block all incoming connections allow all ...
0
votes
1answer
93 views

Network problems that might be related to NAT

I have an odd setup where there is a router(Router 2) routing between network network 1 and network 2. One router(Router 1) with nat for internet access that routes between internet and network 1. ...
0
votes
1answer
148 views

no websites loading using iptables nat

I'm using a 3G modem whilst o2 tranfer over adsl. trouble is no websites load but I can resolve domains. I enabled masquerade on the PPP0 ( modem) interface. added the server as default route for all ...
1
vote
2answers
3k views

Why is my router blocking websites? [closed]

I'm not exactly a networking expert and am currently having some issues with my new sitecom router (firmware is upgraded to the latest version) When NAT is enabled on my router and the router ...
0
votes
1answer
1k views

Bandwidth limit by IP on Ubuntu UFW NAT

How can restrict the bandwidth (or perhaps rate of packets) of each IP's traffic going through my Ubuntu Server 10.04 UFW NAT box? (If this belongs on another SOI site, please move it.)
1
vote
3answers
2k views

Trouble setting up UltraVNC over my router

I'm trying to setup UltraVNC on my home computer so that I can access it through my router. I'm running Windows 7, with UltraVNC 1.0.8.2, over a Linksys WRT610N Router. I'm able to connect to my ...