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

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Torrent upload ratio not updated on Synology DS212+

I have a Synology DS212+ NAS running DSM 4.2-3211 (current version). I use it for several purposes including torrent download using Download Station and a tracker that needs authentication. My ...
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1answer
3k views

Can't access my IP camera over the internet

I have an EasyN F3 (F3-M166) IP camera. It works fine on local IP address, but I can't access it over internet. This is what I have done step by step: I configured the local IP (camera_ip) and port ...
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1answer
19 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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9 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
18 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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18 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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2answers
5k views

Will disabling NAT on my wireless router cause a performance hit on my DSL router?

I have a Thomson TG508v2 router/modem and a brand new AirPort Extreme connected to it. At first, I set the AirPort Extreme to "share a public IP", which enables DHCP/NAT. Everything works great but I ...
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8 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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4answers
2k views

How to do port forwarding in D-link Glb802c?

I have some questions about port forwarding on my D-Link Router GLB-802C. For example: My local machine's IP is 117.1.1.81 My router's IP is 117.1.1.1 My Public (Web) IP is 117.16.1.1 My ...
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14 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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16 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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1answer
2k views

How to use NAT iptables rules for hostapd

My PC is equipped with two net interfaces - wlan0 and eth0. I want to use WiFi port as access point on wlan0. So i use hostapd facility and it works properly in routing mode in local network. Users ...
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30 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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1answer
4k views

VirtualBox NAT over proxy

I use VirtualBox 4.1.8 on a Ubuntu 10.04 host system. I have an HTTP proxy server on the host system. How do I configure the VirtualBox to NAT the virtual machine's network and use the HTTP proxy for ...
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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 ...
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0answers
17 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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2answers
42 views

Switching to IPv6 - Do I need a router?

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
15 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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0answers
43 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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1answer
17 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
48 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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14 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
27 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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32 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
22 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
41 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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46 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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1answer
573 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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33 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
39 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
39 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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3answers
289 views

How to communicate with devices that have the same IP address

I have a situation where I need to communicate via telnet to multiple devices that have the same IP address. The context is that I am writing a "final test" of devices in a manufacturing facility. ...
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1answer
49 views

(Not all) port forwardings working correctly

I have two port forwardings configured on my internet router: router-external-ip=85.93.c.d:22 --> internal-host:22 router-external-ip=85.93.c.d:8010 --> internal-host:22 (Having only the last one ...
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1answer
69 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 ...
0
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1answer
34 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
76 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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27 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
68 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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708 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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0answers
87 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") ...
2
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2answers
14 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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1answer
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iptables trouble: nat with ip alias (virtual interface) not working

I'm setting up an Ubuntu 11.10 server to act as firewall for a network running several different SSL websites. The idea is fairly common: have all public IP's for each site aliased to the public ...
0
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1answer
28 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 ...
0
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2answers
80 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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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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25 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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0answers
25 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
58 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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0answers
64 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. ...