1
vote
0answers
38 views

upnp and port forwarding, how it works

I know that some programs like utorrent use upnp to add port forwarding automatically, how ever port forwarding does not appear in routers setting? I'm wondering how router pass traffic in/out without ...
2
votes
1answer
111 views

How does uTorrent can automatically forward port through Linux Net Filter based firewall?

I have dilemma: How it is possible that uTorrent shows on my internal machine with internal IP, that my connection is OK (green check in the bottom right of its window), while I never forwarded any ...
4
votes
2answers
1k views

Asus router RT-N56U unnecessarily opens extra ports for a DMZ device

My Asus RT-N56U router (latest firmware 3.0.0.4.374_979) opens port UDP 3659 for a Playstation 3 which is already in DMZ. The DMZ was set up properly with a static IP assigned to the PS3 and the ...
0
votes
1answer
303 views

Building a LAN emulator for gaming purposes

I built a simple utility for Warcraft III that allows users to join remotely hosted games just as if they were accessible in their LAN. Its idea is pretty straightforward: Players A and B want to ...
0
votes
1answer
295 views

uPnP port forwarding when PC is behind 2 routers or more?

We have a web-server software that we need to install on various types of client PC. We're using uPnP port forwarding technique to allow remote access. Unfortunately, some client PCs are behind 2 ...
0
votes
1answer
351 views

UPNP problems in ADSL Modem and an Access Point

I'm using Windows 7. I'm using a ADSL Modem provided by my ISP to connect to the Internet. I'm using a TP-Link Access Point (WR941ND) to connect to the ADSL Modem and then I connect my computer to the ...
4
votes
2answers
236 views

How do routers prevent automatic port forwarding from being abused

I have a Verizon FIOS router and when I install most applications that need a port forwarded, magically the entry is automatically set up in the router. I searched on google and found out this is ...
5
votes
1answer
11k views

How do I enable UPnP support in Windows 7?

Is there a checklist for enabling UPnP in Windows 7? I am on a home network with Network Discovery enabled in Network and Sharing Center, UPnP is enabled on my router, SSDP Discovery and UPnP Device ...
0
votes
1answer
3k views

UPnP port mapping client for Linux

Is there any client that can request mapping and unmapping ports via UPnP port mapping behind a NAT gateway? I had problem with PortMap. I want this mostly for testing purposes.
0
votes
2answers
316 views

Can DHCP and NAT co-exist?

I am using a U.S.Robotics 9108 to share ADSL Internet access via both LAN ports and WiFi. Is there a way to allow each Windows 7 PC connected to it to handle its own port forwarding needs, rather ...
1
vote
2answers
1k views

How to automatically forward a port from the router to a Mac ? (UPNP)

I'm looking for some no-brainer commandline tool or script that can be used to forward a given port from the LAN's router (which supports UPNP) to the local machine. E.g. upnpforward 9000 would ...
4
votes
1answer
2k views

Automatically allowing SSH into a Mac behind a UPNP router?

I have a MacBook connecting to the Internet from behind various routers from time to time. All of the routers support UPNP. I need to allow a co-worker to SSH into the machine, without configuring ...
2
votes
1answer
631 views

Security of port forwarding using UPnP and OS X

I have set up a VPN server in Leopard to allow me to connect to my MBP from my iPhone. I have used an application called iVPN that is great for setting one up, and I have used Port Map to map the ...