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

learn more… | top users | synonyms

0
votes
0answers
153 views

1:1 NAT IP address using iptables

Suppose I have 2 internal networks: 1.1.1.0/24 and 1.1.2.0/24 I would like to NAT a specific IP address from one network to the other, in which the new address would be obtained via DHCP. For ...
4
votes
3answers
370 views

Set up Linux box as WAP for MyBookLive?

I inherited an old Linux box as well as a MyBookLive and would like to make the MyBookLive available over my wireless, essentially using the Linux box as a gateway. I just wiped the Linux box (home) ...
1
vote
0answers
358 views

Routers and NAT hole punching? [closed]

I'm trying to understand why UDP hole punching works. Given peers A, B behind a NAT router and Server with port 80 open. A sends a packet to Server from port 1234. This causes the router to open a ...
0
votes
1answer
588 views

What am I missing to enable connection sharing on my Linux box?

I'm having problem setting connection sharing in my Slackware system. I enabled rc.ip_forward: $ cat /proc/sys/net/ipv4/ip_forward 1 And I added the next iptables rule (and I've no other rules): ...
-1
votes
2answers
392 views

How can I allow computers on one router to access computers on another router?

I have a lousy 3801HGV modem/router that I have to use with AT&T UVerse. Due to AT&T issues, that router does not allow the ability to change DNS settings. I have added a LinkSys E1200 as a ...
1
vote
0answers
250 views

IP forwarding with iptables

Suppose there are hosts A and B. A is allowed SSH access to B based on its IP address. Consider now another host C. C does not have access to B, but if we could route its traffic through A, then C ...
0
votes
2answers
193 views

isp overriding netbios

I have a Thomson TG789vn v2 router and a weird way ISP (ASK4, UK) wants me to use it. They are telling me to connect their cable to Ethernet 1 slot and disable DHCP on the router. When I do that ...
0
votes
1answer
929 views

Pinging an external server through OpenVPN tunnel doesn’t work

I have an OpenVPN server and a client, and I want to use this tunnel to access not only 10.0.8.0/24 but the whole internet. So far, pinging the server from the client through the tun0 interface works, ...
1
vote
1answer
123 views

PSExec tool using without authenticating to clients on same subnet

If I am using VirtualBox NAT virtual networking, will I be able to execute programs on another host in my subnet without authenticating?
1
vote
1answer
135 views

NAT and P2P router crash

So..i had this argument with my networks teacher. He said that some people complains about router crashes due to many entrys on NAT tables on a router. I didnt understand and i asked: "If the ...
1
vote
0answers
113 views

Hole punching over multiple ISP [closed]

I have set up my web server on my home PC used to return its client's public ip/port for TCP hole punching. As I tested, All port returned from each request(I bind socket to the same port on each ...
0
votes
1answer
197 views

ISP 5 Device Limit … again

Sorry for the delay in responding to the suggestions that were posted in my first question (ISP 5 Device Limit - double NAT the solution?). I've been travelling and have not been able to try anything. ...
1
vote
0answers
451 views

Routing table on Linux not respected

I have a very specific problem, building a Linux VPN endpoint (with external VPN Gateway), which should route certain networks over the tunnel, others via default gateway. The Linux VPN should do a ...
0
votes
1answer
314 views

domain network with DHCP + NAT

I'm configuring a virtual network on an esx server. I have a Windows Server 2008 R2 configured with these roles: - active directory domain services - DHCP server - DNS Server - Network Policy and ...
0
votes
1answer
99 views

About Wireless Router with 1:1 NAT Function

I have a old TP-Link Giga Router has 1:1 NAT Function, But does not have wifi. So to have wifi, I have two options: Buy wifi access point and connect to my current router Get a wifi router with 1:1 ...
0
votes
1answer
2k views

Can I use a gateway address on another subnet?

I've some problem connecting my virtual machine to my internet. Can I use another gateway ip address other then my subnet ip address? The gateway ip address is from my router ip address? My problem is ...
2
votes
0answers
100 views

Turning Computer into Router,Network Address Translation encryption.?

I have windows seven and am using connectify. but when i try to connect to the interner through my ethernet court in my dorm room the comp0uter doesnt recognize the ethernet cord. I belive that the ...
0
votes
2answers
97 views

Can I run a mix of static addressing and NAT?

Let's say that an ISP offers a plan with 5 static IP addresses, but I have more than 5 devices, many of which (such as a networked printer, for instance) I do not want or need to have a static IP ...
1
vote
0answers
148 views

Is there a decent diagram of packet flow for a modern era (2.6+) iptables setup?

I'm currently trying to debug a particularly hairy set of DNAT based iptables rules (the UDP reply never makes it back to the original requester) and I'm struggling to visualise the packet flow ...
1
vote
2answers
391 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 ...
0
votes
0answers
110 views

CNet router - no field for private port

I'm trying to configure port forwarding on my CNet router for a locally hosted HTTP server. The model number of my router is CQR-981 and the firmware version is 1.0.43. The problem is that there's no ...
1
vote
2answers
635 views

TCP/UDP hole punching from and to the same NAT network

I was wondering if tcp/udp hole punching would still work when you are in the same network (behind a NAT), and what the packet's path would be. What happens when using hole punching on the same ...
4
votes
2answers
3k views

No internet on host OS (OS X Lion) when VMware Fusion is running

I have installed OS X Mountain Lion as a VM in VMware Fusion (version 4.1.2) for environment testing. The host OS is OS X 10.7.4, and is connected to the internet via a wired connection (in fact I get ...
2
votes
3answers
4k views

NAT vs public IP (and blocked ports)

I have a problem with my ISP. They say that they don't block any ports and I have public IP, while I think these both statements are false. Before I talk to them again (which is really tough when my ...
0
votes
3answers
391 views

Connecting to FTP server that's behind a NAT [duplicate]

Possible Duplicate: What is port forwarding and what is it used for? So I want to allow my machine behind NAT to be accessible via FTP. However, as it is behind NAT, it is not possible to ...
2
votes
2answers
2k views

Better ways to setup a webserver behind ISP's NAT

Our entire road is behind an ISP NAT that I can't access. Our ISP wont forward a port either. My workaround, I setup an ipv4 to ipv6 tunnel using freenet6. I get a domain like ...
0
votes
1answer
443 views

How can I ssh into my home computer from the internet?

Is there software that will help me to ssh/connect to my home computer from the public internet? (Say, a coffee shop). I understand that questions similar to this have been asked, but none seem to ...
0
votes
2answers
912 views

Can I know what IP address my home network has? [duplicate]

Possible Duplicate: Fastest method to determine my PC's IP address (Windows) I'm not sure the title of my question is appropriate, and I'm not sure my question is going to be ...
2
votes
1answer
220 views

NAT/PAT, URL dependant, cisco 7301

I need to configure cisco 7301 with list of hostnames/ip's. These need to be forwarded to internal ip's/ports (depending on the hostname) In the current setup... www.frog.com, ip 82.45.100.100 nat's ...
0
votes
1answer
1k views

Can I create a reverse ssh tunnel by using my Android phone as the middle man?

I am trying to connect my home linux laptop and my work Windows 7 computer. They are both behind NAT w/ firewall and neither allows port forwarding. I cannot control the NAT, firewall or port ...
0
votes
2answers
721 views

Weird slow uplink problems on my home Debian router and new fast connection

Yesterday I got a new and shiny VDSL2 connection home! It's specced at 100Mbit/10Mbit, and seems to deliver pretty close to the mark. Now, I have a Debian squeeze linux box acting as a home NAS and ...
4
votes
4answers
4k 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 ...
0
votes
2answers
389 views

How to browse my local website running on Mac OS X from my guest VMWare Windows 7 machine?

I am running OS X Mountain Lion as the host, and Windows 7 inside a VMWare Fusion 4.1.3 machine. I have a local website running on the host (under port 5000). I want to access this website from the ...
1
vote
0answers
145 views

How to provide “reverse ssh” to a shell?

Scenario: Many embedded devices (running Linux) out in the fields, behind routers so NAT'd and we can't make connections to them. We need for a support person to be able to initiate a terminal/shell ...
5
votes
3answers
2k views

NAT and UDP replies

Sanity check please. If I send UDP packets from Machine A behind a NAT to Machine B's port N, where Machine B is outside the NAT (elsewhere on the Internet), can I reasonably expect that NAT to pass ...
1
vote
1answer
292 views

Failover WAN with multipath

I'm configuring a dd-wrt router to allow access via VPN to a remote desktop server. The router will sit behind another router providing NAT. I'm configuring it with a backup 3G mobile broadband link. ...
1
vote
1answer
646 views

use computer as NAT router or proxy to share access by USB 3G dongle

I'm in a strange, fun situation with a dual boot windows XP/Ubuntu linux computer that is only connected to the internet via USB 3G dongle, and i need to connect another device that only has a ...
3
votes
3answers
1k views

How is traffic separated between internal and external IPs?

If I ping 192.168.0.X from my home network then it will attempt to look within my network for that address and not the external WAN IP. However I can ping 74.125.224.163 and it will ping google.com. ...
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 ...
-1
votes
2answers
8k views

How to connect wireless router to work network with NAT?

I want to connect a wireless router to my work network, but I want all the wireless clients connected to the router to appear as a single IP address to the "men in black" network admins. So I believe ...
2
votes
0answers
60 views

Linux VM can not connect to the internet

I'm trying to set up an virtual server with connection to the internet. When I start a ping to the local network, there are no problems. When I try to ping an address from the internet, it shows that ...
1
vote
1answer
1k views

can't ssh within LAN, but can connect from outside

A strange issue: I have a desktop running Ubuntu 10.04 behind a Netgear WNR1000 router performing NAT. I would like to be able to ssh into the desktop from my laptop (running Windows 7 and Cygwin). ...
0
votes
1answer
284 views

Connecting to network device behind NAT from local LAN using the external port and IP

I noticed at several different LANs connected to the Internet through a NAT the following phenomena. There is a server in the LAN and there is a port forwarding to reach this server also from outside ...
0
votes
0answers
188 views

Unable to open websites that use HTTPS on linux

I have the following network configuration: My PC 192.168.1.20/24 uses 192.168.1.1/24 as a gateway. Dlink-2760U router with Local address 192.168.1.1/24 has a VPN connection open with the provider ...
0
votes
1answer
96 views

NATing with a single-homed machine possible?

I have the following setup: a) a single-homed machine, A, that can see the Internet. b) other machines B, C, and D that cannot see the Internet. c) A, B, C, and D can see each other. d) all ...
13
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 ...
0
votes
1answer
289 views

NAT works for Windows guests but not for Linux guests

I have just updated to VMPlayer 4.0.3 (from 4.0.1) on a Windows 7 host. All the various guests are configured for NAT networking and DHCP, and before the upgrade every OS could reach out the ...
1
vote
1answer
5k views

NAT vs Port Forwarding [duplicate]

Possible Duplicate: What is port forwarding and what is it used for? What is the difference between NAT and Port Forwarding? Are they two different names for the same thing? Could you ...
0
votes
1answer
271 views

Cross-platform VPN software in a firewalled environment

I am currently working on setting up a VPN in order to allow the control over some computers. However there are some problems that I am encountering in setting this up Many (if not all) of the ...
0
votes
1answer
207 views

NAT on MAC-filtered network

My ISP (Hyperion S.A.) provides internet using a UTP cable with MAC filtering. I'm trying to set up a router so that I can connect multiple computers to the network. Most computers would connect ...