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Thread ID: 66157 2006-02-13 07:46:00 Port Forwarding/NAT confusion BakugekiNZ (9752) Press F1
Post ID Timestamp Content User
429987 2006-02-13 07:46:00 Here is my setup:

phone jack
-> filter
-> cable to my...
-> D-Link DSL-302G "Generation II" (provided by Telecom)
-> Ethernet cable to my...
-> Linksys WRT54G (Firmware v4.20.7, latest firmware)
-> Ethernet cable to my...
-> AMD64 Windows XP SP2 machine

I have set up a static IP for the machine. By default, DHCP range was from 192.168.1.100 to 192.168.1.149, and I heard that static IPs are required for port forwarding, so I gave it the IP 192.168.1.150

Now, my problem:

I want to set up port forwarding for bit torrent (Azureus client is the one I want to use, but thats not the important thing), and generally, I just want to know how to do port forwarding!

Read many resources on the internet, and they tell how me to do it for individual routers, but as you can, I have my broadband router, that goes in the "Internet" port on my wireless router, and THEN my computer.

I know how to enter (I think I do) port forwarding information for my Linksys, and I have found the NAT rules section for my D-Link, but I don't know what IPs to put in for my D-Link to forward to, do I need a static IP for the Linksys, and if so how do I do that, etc...

So, if you could talk me through how to forward a port with my setup, I would appreciate it. For the sake of argument, I want to use port 32093 (the one LimeWire tells me to use) as the port to forward.
BakugekiNZ (9752)
429988 2006-02-13 07:53:00 PS:

I have heard reference to the "Firewall" page for the WRT54G

My settings are
Firewall Protection : Enable
Block Anonymous Internet Requests: Yes
Filter Multicast: Yes
Filter Internet NAT Redirection: No
Filter IDENT(Port 113): Yes
BakugekiNZ (9752)
429989 2006-02-13 09:57:00 Well, the easiest way would be to put the IP address of the 'Internet' port on the wireless router into the DMZ of the ADSL router. Then you just need to do the port forwarding on the wireless router.
You don't need to have 2 NAT / firewalls between your PC and the internet.
You would need to set the IP of the 'Internet' port of the wireless router to a static one. Most likely something like 10.1.1.3.
CYaBro (73)
429990 2006-02-13 11:20:00 Go to Port Forward .com (www.portforward.com), choose your router/ADSL and then choose the programme you want to forward.

DMZ isn't the best way to do it, but will in part depend on your routers capabilities.

Edit: This is the actual page you want. (www.portforward.com). Have a read up of the various problems you can encounter and the possible fixes.
Murray P (44)
429991 2006-02-13 22:43:00 Here is my setup:

-> D-Link DSL-302G "Generation II" (provided by Telecom)


Having played with the DSL-302G ADSL Modem at a relative's house on Saturday, I can say that the option for port forwarding is strangely missing from the web interface of this device. I suspect that the custom Telecon Xtra firmware on the device has been configured like this deliberately.
I'm going to be gifting my old M1122 to said relative to solve the problem.
BIFF (1)
429992 2006-02-13 23:06:00 I dont have port forwarding at all and my uTorrent works 100%. I use uPnP to let it open the ports it requires in the firewall and the router. The firewall knows it is an app that is allowed.

One other way to do it is to set up a DMZ so everything not sent to a specific request will be routed to the one IP address
Big John (551)
429993 2006-02-13 23:58:00 uPNP most likely won't work through 2 firewalls / routers will it? CYaBro (73)
429994 2006-02-14 04:49:00 CYaBro, followed your advice:

1 . On the DSL-302G, did a DMZ NAT rule (strange sounding I know, but thats how the 302G handles the concept of DMZs :|), with 10 . 1 . 1 . 4 being the IP . This is the IP that my Linksys is always on, so its good enough for my purposes .

2 . Did the port forwarding like normal on the Linksys . No security settings changed .

3 . Tried out Limewire, and the little firewall logo was GONE!

Then did port forwarding for Azureus, and it seemed intermittant, but it definately worked some of the time, at least .



Murray P, tried that site before, and it doesn't provide for the possibility of a two router set up like mine .



Biff, it is, and its quite visible . Two ways to get to it:

1 . On the first page you see when you log in to it, click "network setup", then "add"

2 . Go to "advanced user mode", "WAN", "NAT", then in the "NAT Options" drop down box, choose "NAT Rule Entry"


Big John, uPnP in Azureus seemed to be working, but it was only doing the Linksys AFAIK, just as CYaBro said .



So, to summarise, putting the Linksys in the DMZ of the Router, then port forwarding as standard on the Linksys, worked!
BakugekiNZ (9752)
429995 2006-02-14 07:34:00 Good for you :thumbs:

Would bridging (mode) the second router have worked, just a stab in the dark .
Murray P (44)
429996 2006-02-14 19:10:00 Make sure you turn off uPNP in Azureus, as you are doing the port forwarding in the router yourself, it can cause problems. CYaBro (73)
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