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Questions tagged [nat]

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

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1answer
15 views

OpenVPN over ssh tunnel

I'm trying to connect to my home network using OpenVPN. My router is behind the ISP's router so I'm having a double NAT problem (IP address on WAN port of my router is 10.x.x.x). ISP cannot provide me ...
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1answer
22 views

Virtualbox NAT Network port forwarding refuses connection

I created a NAT Network in VirtualBox and from the Ubuntu host I am trying to SSH into the Ubuntu server VM, but I get connection refused. The Ubuntu server VM is connected to the NAT Network using ...
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0answers
24 views

How to connecte local network web server with my global ip address from behind nat

When I connect my web server from the internet, I can connect to my webserver with other global IP address. but when I connect from Desktop PC(192.168.0.3) to Web server, web server appends "192.168....
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0answers
4 views

How to forward ports to multiple WAN interfaces?

I have multiple WAN interfaces from different ISPs connected to a MikroTik router, and I need to NAT all incoming traffic from any of the public IP addresses to a local address. I have a recurring ...
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1answer
29 views

Firewall software with ip translation capability [closed]

I'm running a local socks proxy on my Windows machine. I have some ip adresses which can be reached only through this proxy because actually it is an ssh tunnel set up via putty. I thought maybe a ...
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0answers
18 views

Access VM(internal network) from NAT Network

I want to access VM2(which is part of an internal network) from VM1(nat network). I read some articles related to port forwarding but I did not manage to succeed. Maybe it is a way without port ...
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0answers
47 views

OpenWRT - Default configuration does not work

I finally got to try get OpenWRT working on a router, sadly it seems it's more toil than it's worth. I have installed OpenWRT on TP-LINK 1043ND v1. OpenWRT Version: OpenWrt 18.06.1, r7258-...
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0answers
16 views

Remotely Identifying Bridged or NATed VMs on Windows hosts (Hypervisor agnostic)

Trying to come up with a method to identify if a guest VM running on a Windows host is NATed or Bridged regardless of the Hypervisor that it is running on. I explored Win32_NetworkAdapter and ...
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1answer
22 views

Can't forward internet via to wlan via eth | iptables restore command not working

I have a NanoPi M1 Plus device with Ubuntu OS in it which I am using it as a router. The device is getting the internet via ethernet cable (eth0 interface) and the WiFi AP is provided via interface ...
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0answers
23 views

Public access to VMs in NAT mode VirtualBox

I am trying to make a vm publicly accessible and it seems I am missing something obvious. Since I do not have any control on the router, I choose NAT with port forwarding. Here are my rules: NIC 1: ...
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0answers
14 views

Accessing resources on Windows Server 2016 over VPN connection

I'm running Windows Server 2016 and set up a VPN server on it and I can't access the server's network resources from clients (ios, windows pc), but can connect to the vpn itself and I have the servers ...
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0answers
18 views

Continuous VNC listening mode on Ubuntu

I need a remote access to a server in a subnet where I cannot set any NAT. I read about the VNC listening mode where the server actively try to connect to a known client. This can be a good solution ...
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0answers
301 views

Arris BGW210-700, IP passthrough, and subnets

I've got an Arris BGW210-700 residential gateway for an AT&T fiber connection to my house. Under Firewall > IP Passthrough, I have Allocation Mode set to Default Server and Default Server Internal ...
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2answers
41 views

Change DHCP server from ISP modem to network router

I have an ISP provided DSL modem/router (Archer) that is currently configured as 192.168.1.1 and acts as the gateway, DHCP server, and the DNS settings are also stored there. I also have my own ASUS ...
6
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2answers
112 views

NAT and NAT tables

I am trying to understand how NAT and NAT tables work but cant seem to find answers online. I have a few questions regarding NAT. Assume TCP connection made. Assume router has WAN 201.22.14.15 1) ...
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1answer
48 views

How to use Linux host for NAT and port forwarding

I have Debian 9 host, with 2 interfaces: eth0, connected to internet; has dynamic IP assigned by ISP eth1, connected to LAN switch; has static IP; has established warm friendly relations with dhcpd ...
2
votes
2answers
127 views

Does the router use NAT?

I know computers in different subnets can't communicate unless we use a router. For example: PC A is in subnet 192.168.1.0/24 and B is in 192.168.2.0/24. A and B are connected with router C with ...
20
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6answers
4k views

Is it possible to see my external IP address without making an outbound web request?

If your connection is NAT'ed, is it possible to see your external IP address without making an outbound web request? Any OS (Windows, Linux, etc.) is fine.
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33 views

Is it possible to provide the VMware workstation vm's service out to Internet?

What should I set in the I installed a VMware Workstation on my Windows Server(it own a public IP: 120.3.21.5). and I created a vm from VMware Workstation. The vm use VMware Workstation's vmnet8 ...
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0answers
33 views

Using OpenDNS on my local NAT to resolve specific domain

My home router, a ZyXEL C2100Z, does not support NAT loopback, which leaves me in a bind when trying to access a site from my iPhone that I am serving publicly from a server within my home network. ...
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2answers
203 views

how to change my router public IP address

I'd like my router to have a different public IP network so I tried rebooting, restarting and my operator's support told me that I can try leaving the router off for 4 days, but I'm not sure if this ...
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0answers
187 views

OpenWRT - Port forwarding doesn't work while OpenVPN client is running

I'm trying to do SSH port forwarding from my WAN interface to 10.0.0.2 (LAN) but I'm facing an issue whenever the OpenVPN client is running on the router then I cannot ping my WAN IP or connect to my ...
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0answers
37 views

Client of hostapd could not ping gateway

I have a laptop with Intel 8260 wireless module. And I ran following commands to make it a wireless router. Now the testing client can connect to my SSID, and get a DHCP address, both verified from ...
0
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1answer
40 views

Forwarding external traffic through LAN

I am trying to forward network traffic through a wireguard VPN into a VM running on another host. All that - while preserving original source IP address in order to achieve transparent proxying. Both ...
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0answers
36 views

VMware VM under the NAT network controls dedicated servers

I have bellow snapshot's network configration: in the Dedicated Control Server(172.18.1.249) there is a VMware VM1 with ip 172.18.1.247, and it use the NAT network(gateway is 172.18.1.248). I want ...
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votes
1answer
42 views

LINUX Routing VPN traffic for specific port to host on local network

I am connecting my Linux L1 to VPN to get a public static IP 117.xxx.xxx.xxx . This L1 machine has only one ethernet interface eth0 with ip 192.168.1.130 and VPN is connected creating interface ppp0. ...
1
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1answer
75 views

How to connect two computers with same Private IP addresses but on different LAN [closed]

There are two devices in different cities and both of these have same private IP addresses. How do I get them communicated (SSH, RDP, FTP, Telnet, etc). Please explain in detail. Thank you
1
vote
1answer
96 views

PS4 double nat issue

I have an app that i want to access remotely my ps4. i have made a port forward, and everything is working fine, but when i want to go further it shows me an error like i had a Double Nat configured ...
2
votes
0answers
147 views

Windows 10 with IPv6 ULA and NAT thinks it's not connected to the IPv6 Internet

My little LAN is connected to two ISPs and I internally run ULAs so I can make explicit client-to-ISP assignments by centrally NATing my clients onto the respective ISP prefix. All Windows ...
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0answers
198 views

Which IP as dns server for vmware nat config?

Unfortunately I don't seem to understand how NAT on vmware works, so I'll start by describing my setup: Vmware guest with a linux system, ie fedora. It has a static ip configured from the NAT ip ...
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0answers
44 views

Redirect Application IP Address on Windows Computer

I have Windows 10 Enterprise on a local machine and an application running on it. On start, the application attempts to make a connection to one of several cloud servers (but they're on the same ...
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0answers
57 views

DD-WRT 1:1/One-To-One NAT setup assistance

I am running into some issues following the 1:1 setup guide for my application. I am working for a machinery builder that has a small 192.168.1.xxx network running inside a few machines and would ...
2
votes
2answers
104 views

Wake up a computer over Internet using another computer in the same local network

I have two Arch Linux-powered computers, 'A' and 'B', connected to the Internet via the same router. I have configured and tested Wake-on-WAN on both of them. Both computers are shut down most of the ...
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0answers
12 views

Does TCP Nat hole punching requires both router to support

I've heard that TCP Nat Hole punching only support some type of router. For example ZyXel won't support TCP Nat hole punching while Linksys support it. What happened if I try to connect between a ...
1
vote
1answer
63 views

Am I behind dual-NAT?

I've been having some issues lately with an online service, and the vendor suggests it's because I'm behind a dual-NAT. I spoke with my ISP and they say that I am not behind a dual-NAT. Additionally,...
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1answer
43 views

Opening NAT type with another router?

I’m not too familiar with networking but in order to play a game with my friends (For Honor) I need an open NAT type. The issue is, I live in an apartment and don’t have access to the router to open ...
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0answers
34 views

LAN visible to VirtualBox VM with NAT adapter

https://www.virtualbox.org/manual/ch06.html Virtualbox official documentation shows this quick reference chart for different networking modes and their capabilities. It clearly marks that VM to Host ...
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0answers
95 views

Can't SSH to machine behind NAT. (I know this is common, but I'm at the end of my rope here.)

I am using a Netgear WNR2000v5 router. The router itself has a static ip address, and is set up to utilize Network Address Translation. I have enabled port forwarding in the gui interface, and have ...
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2answers
181 views

How can I trace an IP address (ipv4 or ipv6) back to my home network?

I am trying to see if my Netflix account has been hacked. I can see the IP addresses that are streaming from the account. However, I'm not sure how to trace the IP address to see the source. I'm ...
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0answers
44 views

How to connect to vps behind NAT together VNC

How to connect to vps behind NAT together VNC Iam already installed Ubuntu 14.0, VNC, GUI and firefox. please someone help me out i'm looking over google for 3 days I Don't get the way I have::. ...
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vote
4answers
127 views

What prevents data packets from being sent directly to private IP (for hacking/virus/malware)?

I'm new to networking and I've got a lot of the basics down, but I don't understand how the internet couldn't obtain direct contact with your devices on your local area network. I know routers and ...
0
votes
1answer
245 views

NAT loopback and DynDNS

I've successfully configured DynDNS in my router and now I'm able to reach my home server from outside my local network using my custom domain. Using the very same domain I'm able to reach my home ...
2
votes
1answer
27 views

Can we beat the port restriction to a particular IP using multiple NAT boxes?

Imagine 2 NAT boxes are used together we have 2 mappings of “src_port -> dst_port.” If they are used in series. “src_port1 -> dst_port1” and then “dst_port1 -> dstport2.” Does having multiple nat ...
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0answers
55 views

firewall-cmd configure destination NAT

I am trying to configure destiation NAT on a RHEL 7.4 server. I want any traffic generated for 10.10.10.10:443 to go to 10.20.20.20:443. After some Googling I used following direct rule: firewall-...
1
vote
4answers
278 views

How to access Linux Machine sitting behind a NAT, having no GUI?

One of my Debian Boxes has no GUI. How to connect to it via command line from outside (like AnyDesk, Teamviewer etc...)? I can use SCP & SSH to access this machine while I am inside office ...
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0answers
30 views

What is overall default with OpenVPN incoming connections - NAT or routed?

In my router's Tomato firmware at the setup of the OpenVPN client I have the option "Create Nat on Tunnel". As I understand it, this means that the outgoing VPN connection is NATed, just as the ...
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1answer
43 views

Why does Huawei Netcube appear as DNS server to a MacBook

I'm operating a MacBook (with macOS 10.13.6) at home. My internet connection is thru a Huawei Netcube E5180s-22. When I inquire my DNS configuration with scutil --dns I get this (192.168.8.1 is the ...
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0answers
290 views

Double NAT for isolation

I have an existing network but want to provide WiFi in a room that is isolated from my main network. I thought a simple WiFi router would be good for the job as the NAT will prevent access to anyone ...
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0answers
28 views

Hosting website through VPN not working

I would like to host my own small website from home. However, my ISP NATs all the customers, making that impossible. I Googled the problem and found answers suggesting to use a VPN tunnel. I set up ...
0
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0answers
132 views

dd-wrt not forwarding packets between vpn and wan

I hope I am missing something obvious, but I really need a second set of eyes. In summary, the problem is that I can see traffic entering my dd-wrt router from tun0, but the traffic is not exiting on ...