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

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109 views

How to forward ports through ssh and nat to another machine

I have a problem when using ssh port forwarding and nat simoultaneously. Situation: Machine A runs a webserver on port 8080 Machine B is a raspberry pi which works like a little router. It has two ...
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99 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 ...
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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 ...
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618 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 ...
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28 views

A lot of random NAT tables appear

My brothers Mac seems to be infected. It keeps on sending UDP and SYN floods to our router, and it multiplies my ping 10 times.When I look in the NAT Mapping table there are a lot of random address ...
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594 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 ...
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48 views

How do I configure NAT to forward external requests?

I have three Raspberry Pi's connected to Linux machines and one computer (also a Linux machine) connected to a router which is connected to the Internet. My goal is to configure each Raspberry Pi and ...
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124 views

NAT routing command in windows

Is there any specific command in windows which do the following task: I want to modify the source IP address in the packet whose Destination IP is not in the private LAN, i.e., I have a virtual ...
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175 views

Tunnelling TCP connection through NAT

My server is in my school's NAT and my desktop computer is in my home NAT. I want to SSH to my server from home. I normally used school's VPN, but recently for some reason I can't. So I'm looking for ...
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91 views

Netgear NAT over LAN TO LAN

I have the following question: I need to connect through a vpn IPsec lan 2 lan tunnel with a partner but they want that I connect through a specific ip subnet which is not mine. Here's the situation: ...
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247 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 ...
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436 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 ...
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147 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 ...
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144 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 ...
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360 views

How do you set up port-forwarding on a SwissCom Motorola Centro Grande?

I'm setting up a Minecraft server and the NAT forwarding on my router isn't working. This isn't the first time I'm doing this - I previously did this with an Apache server (used to run a server) and ...
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480 views

VMWare networking mode (NAT)

I've created a new WinXP vitual machine on my win7 using VMware player. This virtual machine is using NAT (10.0.0.0/24) and has a WAMP server running. I want this to be NAT as I want the server to be ...
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434 views

Mac OS X Lion - forward all connections on port 22 to external ip

I need to forward all connection to any address port 22 to a different gateway (i.e. no default). Firstly I suppose to do it with ipfw: sudo ipfw add 5 fwd $EXTERNAL_IP,22 tcp from any to any 22 ...
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135 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 ...
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733 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 ...
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10 views

Initiate connection and host services through firewall / nat

I have really great connectivity (1 Gbps internet connection) and a really good base to run a server. Almost every station in my office has its IP address public. I don't know why, but it was made ...
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13 views

Trying to figure out NAT between modem and router

I just bought a new DSL modem and I'm trying to set it up optimally for my small home network. There are a few computers and smartphones which access the router which handles ethernet and Wi-Fi, then ...
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17 views

Setup router with 2 seperate LANs, one that pipes thru VPN, one that doesn't?

I use a VPN at home for privacy, but there are times where you do want your true public IP to be known. Like for Google Maps, or pizza. I currently use a software-VPN tool on my computer for this, but ...
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12 views

vmware player nat network mode not assigning ip to guest os

Hi i am trying to run suse 10 on vamware player. I have the network adapter set to NAT mode however the suse is not being assigned any ip address. Any ideas what might be causing the issue? Thanks
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26 views

How to configure Kali in Virtualbox using NAT behind a corporate proxy

I recently installed Kali as a VM in virtualbox. My company uses a proxy that authenticates using domain credentials. I have included this information in apt.conf and the http_proxy variable (though ...
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12 views

ShrewSoft VPN, multiple users with same external gateway issues

I have a VPN firewall, we can connect more than one user if using different external gateways. If we have more than one user with the same external gateway then only one can connect and keep pinging ...
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24 views

port forwarding in windows 7 to vmware

I have a windows 7 in a network with ip 10.1.1.74 and I have vmware with centos which it's ip is 192.168.160.129 and has configured as NAT with my local windows 7. I have set up a apache httpd server ...
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44 views

How to see my own domain from host server?

I'm using Apache 2.4 running on a Windows 7 machine that is behind a NAT using port forwarding and I'm unable to use http://example.com from that machine, although it works fine from any other ...
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27 views

How to create 2 NAT network types in VMware Workstation 9?

I have a virtual domain network using the VMnet8 (NAT) adapter which simply consists of 2 VM; Windows Server 2012 and Windows 8.I have disabled the DHCP service from the VMnet8 setting due to WIndows ...
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25 views

Setting up a web server behind a ZTE NAT

I have developed a web app in Java using netbeans and running on a glassfish server attached to netbeans. I would like to show this to some people but I can't get it running across the web. It works ...
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73 views

How to expose local loopback to (VirtualBox) VM connecting to host via NAT (VirtualBox NatNetwork)

I'm using the VirtualBox NatNetwork type to connect most of my VMs to the host (with the required ports set up for forwarding). I'd like to know how I can connect to the local loopback ("localhost") ...
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23 views

How do I, on a Ubuntu Server acting as a NAT, forward all requests for a subnet to a VPN?

I have an Ubuntu server handing out IP addresses in the 10.1.2.x range acting as a NAT. It is connected to a VPN, and has the IP address 172.16.1.250 from it. How do I have it forward any requests ...
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58 views

Running Hyper-V Manager behind NAT

I am running Hyper-V Manager on a Windows 8.1 box behind a router (actually a VMware Fusion VM). When I try to connect to my Hyper-V box, I get an error RPC server unavailable. Unable to establish ...
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17 views

would NAT router work behind a NAPT router

If I put a NAPT router behind the NAT router which is at the border of my company enterprise network, can the hosts behind my NAPT router access to the external network. Thank yopu for your response. ...
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41 views

How to setup private network using 2 routers with the following setup, one with ddwrt: internet modem > router > router?

I just purchased a DDWRT router with ddwrt v24 installed. Now I have a regular netgear router (R6300) that is connected to an internet cable modem. Internet Cable Modem > Netgear Router > DDWRT ...
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30 views

How to share folders b/n VirtualBox and Win 7 using NAT adapter and Samba

When I had my Adapter set to Host Only I followed this tutorial and was able to view the folder # \samba\share\ only buy typing \\192.168.55.444 in my windows start up. So, this means I could share ...
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23 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. ...
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37 views

Use rtpproxy as a NAT on openIMSCore

I have some problems, I want to ask about rtpproxy and OpenIMSCore server. Actually I want to make IMS running like this: client IPv4 -- > OpenIMS <-- ipv6client. I want to use RTPProxy as NAT, so ...
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14 views

Blocking an outbound port for a bridge'd nat'd inteface

eth0 and wlan0 are bridged to br0, and have access to the outside world through eth1 and NAT. I'd like to block an outbound port on wlan0, but leave it open for eth0.
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92 views

NAT Loopback stops working after a few days

I bought an Asus RT-AC68 and set it up as a DHCP (10.0.0.*) behind my FIOS Westell 9100em router (192.168.1.*). The FIOS Router is set to DMZ-mode, and points to the Asus RT-AC68. The FIOS router has ...
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20 views

NAT to remote computer

PC A (Windows 7) can create TCP connections to PC B (Windows XP) but B can't make outbound connections to anywhere due to firewall rules. If I need B to connect to a host in the same network as A, I ...
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35 views

Change current internet connection interface

I am at a dorm, where the internet is shut down at 11.30PM but I own a Vodafone dongle and I would like to automate the NAT setup, so that at 11.30pm, sakis3g is invoked to connect ppp0 to the ...
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66 views

Windows 7 Samba-Server Access via Routing

My Network is split up in 2 Sub-networks (network 1: 192.168.240.0/24 and network 2: 10.0.0.0/8). Network 2 has a Samba server on it. Both are connected via a router, network 2 is reachable from ...
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413 views

VirtualBox and Samba 4 on Linux Guest (NAT and Host Only)

Gentlemen, I really need a help from you to configure the "Samba 4" using the "Virtual Box". Here's the situation: In certain networks where I work, the Samba 4 works, in other does not. The guest ...
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36 views

Apple Store Content Downloading Errors

Setup: I have two iOS devices and a Windows PC with iTunes. I am trying to download newly purchased music, book, app, or update an app from the Apple store over my LAN. The LAN has two routers between ...
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82 views

unable to configure nat on centos 6.4

i have configured nat on my centos 6.4 on vmware workstation with the following cofiguration i have two ethernet adapters eth0 and eth1 eth0 has public ip automatically taken by dhcp eth1 has private ...
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29 views

Custom Local Direct Route Windows

I have an external IP address of a load balancer that I want to route locally for internal servers. What's the best way to do this? I was thinking I could use the command line route command to add a ...
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87 views

client still cannot get internet access from gateway pc

I have already set up a laptop as a gateway in ubuntu 12.04. with 2 interface cards. internet >> eth0 >> gateway pc >> eth1 >> Access Point for eth0 IP dhcp for eth1 Static Ip 192.168.5.1 Access ...
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89 views

Wifi extenders: sharing private subnet

Apologies if this is a duplicate, it probably vaguely overlaps other questions. I want to create shared folders among home computers and laptops etc. running windows and linux (workgroups / samba). I ...
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293 views

Squid proxy server vs NAT rule of Mikrotik router

I have installed squid proxy server to hide our network ips after some time it becomes slow then I read through NAT rules to achieve what I want by proxy server. As per this link the difference ...
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656 views

How to configure AirPort Extreme as the DHCP/DNS/NAT server where DSL modem/router does them?

I have an AirPort Extreme BS and a modem/router (ISP's NetMaster). I want to host my own websites from my Mac Mini with OS X Server. At the moment, ISP's router is the DHCP/DNS/NAT server, and AirPort ...