0
votes
0answers
20 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 ...
0
votes
1answer
2k views

Multiple static WAN addresses on Asus RT-N66U?

I'm trying to configure multiple static IP addresses on my new Asus RT-N66U router, I had fiber installed yesterday so my old Thomson router won't work any more unfortunately. Previously I ran a ...
0
votes
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 ...
0
votes
2answers
65 views

Getting problems connecting to my server

I have a problem in my network. I have one network with 3 computers, 1 printer and 1 windows server version 2008. All computers in the network connected to the server have 192.168.1.xxx- IP addresses. ...
3
votes
2answers
3k views

Using iptables SNAT based on source interface and ip address

I would like to change source ip address according to ip address and interface it came in. Let's consider following example: ----------------------------- | | | ...
7
votes
3answers
3k views

How does the router know which device to send packets to?

my question does not concern how it moves through the internet, but how it moves through the router to a certain device. All devices connected to a router in a home network have the same external IP. ...
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
2answers
909 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 ...
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
99 views

In which network layer is the data located that lets a gateway(using NAT) know which computer a packet is meant for?

Main questions: In which network layer is the data located that lets a gateway(using NAT) know which computer a packet is meant for? Could someone explain how the process works? In explaining the ...
10
votes
8answers
32k views

How to get my external IP address (over NAT) from the Windows command-line?

The Windows "ipconfig" command can only show me the parameters from the Ethernet interfaces from my machine (even with the ipconfig /all argument). It can show detailed information about the ...
7
votes
2answers
537 views

What do the various IP addresses mean?

When I visit a website (e.g. whatismyip.com) it states that my IP address is 13.151.xxx.xxx. However, when I run ipconfig, my IP address is 192.168.0.xx for IPv4 and my DNS adress is 202.xx.xxx.xx. ...
2
votes
2answers
847 views

Is it possible to statically assign public IPs and use DHCP on the same router?

My ISP has given me a set of public IP addresses I can assign to various devices. But they have been controlling everything, and I've had to call them to make any changes to the configuration. I'm ...
2
votes
2answers
92 views

Translating an IP Address again

I have a question about NAT(Network Address Translation). is it possible to translate an already translated IP address? would you please guide me why it is possible or impossible?
0
votes
1answer
708 views

How to NAT DSL modem to a LAN computer?

I'm using DSL modem manufactured by Billion (China, i think), i have 2 computers sharing this modem. Now, I have a domain and want to A the domain to my modem's IP, however, when opening this IP, ...
0
votes
4answers
598 views

Running a server when all computers have the same WAN ip

I want to run a server on my machine so that anyone in the Internet may connect to it. But my Broadband internet provider issues the same WAN ip to all the customers while each of them has a different ...
1
vote
2answers
3k views

Setting up a Linux server with a public Static IP

I have setup a Ubuntu Linux server in an office. It should have a public IP so that outside users can access the internet. Currently, it is set with a public IP, but is it supposed to have a local ...
1
vote
3answers
461 views

Why is port forwarding necessary for servers but not for clients?

Whenever I host a server, I'm required to forward the listening ports of the server on my NAT device. However, if I connect to a remote server, I won't be required to forward the port used for ...
0
votes
1answer
819 views

How can I make my livebox route to my external IP address for a computer in the DMZ?

I have a sagem livebox 2 (Fiber optic model), and have placed my computer in a DMZ. People from outside of my network can access my comp fine via its external dyndns.org address, yet when I try to ...
6
votes
5answers
12k views

Is it possible to host a web server from behind a NAT

My PC is behind a NAT router that has a public IP address. If I want to host a website then I believe I need a domain name which I can purchase from some site which would pledge to resolve all DNS ...
3
votes
1answer
7k views

Accessing a website via the webservers public IP from a PC within the same LAN

If two machines reside on the same LAN (a PC and a Webserver) why is it necessary to enable ‘NAT loopback’ on the router in order for the PC to access the website hosted on the webserver using the ...