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

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Point an internal IP address to an external URL

Is it possible to set a router up so a machine in the LAN can access an Internet URL using an internal IP address? I have a cheap DVR box that can save recorded videos to a FTP server, but only ...
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193 views

OpenWRT sending invalid packets to WAN when Android phone connects

I have a Netgear WR703N wireless router flashed with OpenWRT 12.09 "Attitude Adjustment" connected to my school's Ethernet network, and our IT department sent emails alerting me that it's ...
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1answer
398 views

RV130 won't pass http unless behind another NAT

I'm attempting to replace a Linksys WRT54G with a Cisco RV130 for a home internet connection. For the moment, the setup is about as simple as it gets. Cable-modem -> RV130 -> Switch -> Multiple ...
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29 views

How to NAT one accesslist for two interface?

I have a 1800 cisco router with two interface. I Configured a dialar interface for pppoe connection for internet on fa 0/0. but I have an intranet for remote branch office on the same interface. the ...
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1answer
40 views

iproute2: How do i connect one machine to the internet via another

I have the following setup: A > 169.254.8.125/16 <--(ad-hoc)--> 169.254.9.109/16 < B > 192.168.178.21/24 <--(wifi)--> 192.168.178.1/24 < AP/router > internet I want to connect A to the ...
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1answer
130 views

How to NAT between 2 network interfaces without impacting routing

My Linux-based router has 5 Ethernet ports. It is currently acting as a router between ports 1 & 2 and the dedicated WAN port, without NAT. Port 1 is 192.168.1.1/24, port 2 is 192.168.2.1/24, WAN ...
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133 views

VirtualBox NAT port forwarding configuration (<1024)

I'd like to forward requests from 127.0.0.1:80 to a guest OS in VirtualBox VM (CentOS 7) - 10.0.2.15:8080. Is that possible? If I forward 127.0.0.1:9090 everything works fine, but as soon as I ...
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130 views

Using NAT to translate IP addresses on Mac OS X Mavericks

I want to access two iPhones (iOS 7.1) via USB tethering of the default iPhone hotspot. When I connect them to my iMac, they have the same static IP and can only be separated on the iMac because they ...
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1answer
32 views

NAT and UDP replies by default

If I send UDP packets from Machine A with local port M 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 would pass ...
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49 views

Can't open NAT for mw2 with Wimax connection(PC & PS3)

I'm in contact with my ISP and we are struggling to get open NAT, (since is Wimax I think we can open NAT only on their backend) We've tried uPnP enabled, DMZ and opening ports on their backend, but I ...
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1answer
100 views

iptables does not seem to be applying SNAT to packets sent on a raw socket

I'm writing packets from a user space program to my wireless interface wlan0. I've set up a SNAT rule with iptables as follows iptables -t nat -A POSTROUTING -o wlan0 -j SNAT --to 192.168.1.3 And ...
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90 views

Disable NAT and have a direct WAN - LAN connection with just one PC?

I have a pretty old router which is behaving rather weird with UDP port forwarding (Seems to be blocking/not routing incoming connections). I need it to behave such that the cable is directly ...
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130 views

How to setup a ASA 5505 behind a captive portal and start a VPN NAT

I'm currently in the situation that I connect to the internet via local network with a captive portal for user authentication and transparent HTTP proxy. During peak hours the proxy slows down to ...
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29 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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329 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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60 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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252 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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2answers
147 views

Switching to IPv6 - Do I need a router? [closed]

In the future, since every IP (IPv6 adress) is going to be global, we don't need to use NAT. So basically, why do I need a router on an IPv6-only global network? Why not just replace my router with a ...
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1answer
46 views

How to forward a port in VM which is behind NAT

I see a few questions similar to my but, they didn't answer my question. I have a router. I have installed Debian in VM and setup a ssh server on it. I want to forward a port for this machine on my ...
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1answer
376 views

SSH and PWNAT for SSH Connection Between Two Separate NATs

Is it possible to use pwnat and SSH to establish a "peer-to-peer" SSH connection between two machines that are behind two separate firewalls/NATs? If this is possible, what are the steps that would ...
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49 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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1answer
43 views

Windows wireless bridge with NAT

Here is my setup: I have a robot that I want to access remotely, but there is no wired connection. If the robot was configured to DHCP, I think could bridge the wired and wireless connections on a ...
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1answer
161 views

How to re-enable NAT on Netgear CG3100?

I just accidentally disabled NAT on my CG3100. Now I only have 4 public IPs for all the devices. I really need to re-enable NAT on my CG3100. How do I re-enable NAT on a CG3100?
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198 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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1answer
76 views

Double NAT with access to both gateway web interfaces

I have a Cisco Linksys E3000 home router that I appreciate. However, my new (but temporary) ISP will want me to use their Huawei router for their service once I get connected next week. This creates ...
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1answer
266 views

Switch with NAT/port forwarding?

I'm sorry for this basic question, but I'm stuck. I'm looking for some networking equipment that allows me to route WAN traffic (internet) to a client on a local LAN based on TCP/UDP port. That is, ...
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68 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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95 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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1answer
72 views

Why from a virtualized Ubuntu system I can't discover the ip address of my router?

I am not into computer network and I have the following problem finding my router IP address. I have a Windows 8 PC on on which it is installed VmWare Workstation that virtualizes Linux Ubuntu. The ...
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1answer
51 views

How can I specify which network to use for internet connection and which for viewing network computers

I have two Network Adapters on Windows 7 64 bit operating system which is installed on Oracle Virtual Box. I created those two adapters as follows: NAT VirtualBox Host-Only Ethernet Adapter If I ...
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1answer
352 views

How can I bypass my modem with NAT to open my ports to the outside?

My Internet provider gave me a Modem-Router with WiFi capabilities but it has all ports filtered for incoming traffic. What I'm trying to do is to use NAT in someway that allows me to recieve incoming ...
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66 views

Connect to internet through two gateways

I am developing a library to perform port forwarding in NAT devices. Using SSDP (de discovery process) I can see two different UPnP servers that implement WANIPConnection service type, one is my ADSL ...
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1answer
394 views

Where to place a port-mirroring switch for home network monitoring

I want to start monitoring traffic that goes in and out of my home network. I'd like to collect information like bandwidth usage and (specifically) HTTP requests from home computers to websites. From ...
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58 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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2answers
250 views

How can i find the ISP IP allocated to my Router?

I am using Router to connect to internet. How can i find the ip address allocated to my router by isp in windows 7? I cant use whatismyip.com since it will give shared ip if i am behind a CGN.
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233 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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2answers
53 views

Port based routing, 1 public mapped to multiple private ips

Simply put, I want this single public ip mapped into different private ip's based on port 111.1.1.1:80 -> 192.168.1.1:80 111.1.1.1:443 -> 192.168.1.2:443 is this a standard and possible?
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46 views

ADSL device providing No NAT DMZ alongside NAT (IPv4)

I have an ADSL modem/router/switch which performs NAT. It does this even for the one host it can be configured to provide a DMZ. I want to be able to perform Nmap scans from a specific host and there ...
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41 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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1answer
3k views

Fedora 20 NAT Configuration with firewalld

I'm trying to set up a simple masquerading gateway that will bridge between an internal network on ens33 (192.168.1.0/24) and a private network on ens37 (10.0.1.0/24). It's a VMWare image with two ...
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176 views

cisco wireless router not allowing full tcp handshake when in router mode

I have a recently-purchased cisco rv220w wireless router. My setup is as follows: Internet -> asa 5505 -> 10.0.1.0 subnet -> wireless router (subnet 10.0.3.0, public facing ip is ...
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44 views

Xbox to Sonicwall TZ180 [closed]

First, not sure if this is the right place to post this. I have a Xbox 360 hooked up to a SonicWall TZ180. The SonicWall is then connected to my TP-Link router which is downstairs. When I play games ...
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1answer
127 views

Implementing a direct TCP link between computers hidden by a router with a server managing the connection

I'm working on an encrypted chat program and I'm trying to work out a way of sending messages directly between two computers which are hidden by a router (each have their own local IP address and are ...
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156 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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1answer
236 views

IPv6 only LAN with NAT64 router for Internet

I want to disable IPv4 on my LAN and run only IPv6. I will use a NAT64 Juniper firewall to provide Internet access since I only have IPv4 Internet. Will this break applications? Will I be able to ...
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84 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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2k views

Accessing VirtualBox with NAT adapter using SSH

I have a CentOs 6.5 running on a VirtualBox. I am using NAT adapter and my inet addr is 10.0.2.15 But, I can't access this host using ssh root@10.0.2.15 I get ssh: connect to host 10.0.2.15 port 22: ...
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1answer
606 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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1answer
94 views

Computer only accesses the internet when using a static DNS ip

My setup is wall-> Zyxel p-870h-51a VDSL2 modem -> DD-WRT router. The issue is that the modem has connected to the internet, but the computer is unable to. This is resolved if on the individual ...
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37 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.