Trouble with port forwarding, DHCP, VUZE, and downloading speed.

I am using Vuze to download things. I have a slow download speed and yellow smiley face, indicating a NAT problem. I think I need to implement a port forwarding, but that requires a static IP address. My router and security is set up such that I CANNOT connect to the internet using a manual configuration--DHCP only. However, I always have the same IP address. This is because the wireless router--a Motorola SB900--will only recognize approved computers designated by the IP address.

Can anyone advise on what to do next?

ibook G4, Mac OS X (10.4.11), none

Posted on Jan 9, 2010 7:07 AM

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11 replies

Jan 9, 2010 11:29 AM in response to E_nmn_m

E nmnm wrote:
I am using Vuze to download things. I have a slow download speed and yellow smiley face, indicating a NAT problem.



Here are two links that will rate your connection.
http://www.speedtest.net/
http://www.pingtest.net/

You can try downloading directly from the terminal to see how fast one file downloads.
Macintosh-HD -> Applications -> Utilities -> Terminal
mac $ mkdir test
mac $ cd test
mac $ curl "http://www.apple.com" >see
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 11292 100 11292 0 0 22628 0 --:--:-- --:--:-- --:--:-- 62623
mac $ cat see
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-us" lang="en-US">
<head>
... clipped ...




I think I need to implement a port forwarding, but that requires a static IP address. My router and security is set up such that I CANNOT connect to the internet using a manual configuration--DHCP only.

you are dealing with two networks. There is a network between your computer and your router. There is a second network between your router and your ISP.

Port-forwarding is from your router to your computer.

http://www.portforward.com/english/routers/port_forwarding/Motorola/SBG900/Azure us.htm
However, I always have the same IP address. This is because the wireless router--a Motorola SB900--will only recognize approved computers designated by the IP address.

Can anyone advise on what to do next?


You need to set Port-forwarding between your computer and your router. You will need a fixed IP address on a your Computer. There is to ways of doing this. You can set up a static IP address on your computer. A hack would be to add 10 or 20 to your IP address that your router gives out. For example if your router gives out 192.168.1.10 you of would add 10 to the ten giving 192.168.1.20. you need to make the addition to the right most number of which in the example is ten.

The section way is . . . You can have your router a signed a fixed address based on your MAC address. ( Each Internet device has a fixed address that is called the MAC address. This is a different address than your IP address. the MAC address is assigned in the factory. )



Another hack would be to Port-forward to the number your router assigned at random. If your Computer is the only computer on the router, the number should always be the same. It is a hack because this is not guaranteed.

Jan 9, 2010 11:09 PM in response to E_nmn_m

Most routers let you do static routing a couple of different ways. They have their DHCP server enabled, and they specify a user-alterable range of DHCP addresses -- then you choose one outside that range (that you may have changed from default setting) but in the same subnet (example: router is 192.168.1, subnet mask is 255.255.255.0, DHCP range is 192.168.1.100 to 192.168.1.254; so you choose an IP address for your computer in the range of 192.168.1.2 to 192.168.1.99 that is set in Sys Prefs Network by choosing manual address using dhcp or manual address -- the former requires you to only set the address the latter requires you to set address, gateway (router) address, and subnet mask). Or you turn off dhcp server on the router then everything on your network has to be manual address. Or, as suggested by rccharles, if your router has dhcp server enabled say 192.168.1.2 to 192.168.1.254 then you just manually assign a big number like 192.168.1.128 since it is unlikely that your home network has 128+ devices affiliated to it.

You need to click on the gold padlock in the lower left hand corner of Sys Prefs Network window before you click on the Advanced button to get to the TCP/IP tab where you change this stuff. Did you?

Next issue -- is the port or service that uses port 50000 or whatever enabled in Sys Prefs Sharing and/or in Sys Prefs Security Firewall Advanced (also need to authenticate with the gold padlock to to change anything)? You may let traffic through the router but then you have to let it into the computer.

Regarding download speed, is it terrible for all computers on your home network, particularly wired ones? Then get your ISP to come out and check your lines between your place and their server. Or are you wireless? Try running a test while wired via ethernet cable. Maybe your wireless signal is too weak to support good download speeds. Maybe your wireless land line phone that operates in the same frequency range as your router is interfering with your connection.

Feb 6, 2010 5:42 AM in response to j.v.

Hello - I have a similar type issue and was wondering if anyone could help;

I was hoping some folks in here using utorrent and a linksys router could help. I researched several site to no avail.

What I have done so far:

1) Created a static IP (192.168 - - ) in my network.
2) Logged into Linksys and forwarded that port number in utorrent to that static IP
3) Systems preferences - allowed utorrent for incoming connections

My issue is, my IP on the internet is (24.60 - -) and I'm connected to my network through my static IP (192.168.-.-). When I tried to connect to my network using my internet IP (24.60) I cannot connect. Basically incoming connections see my network (192.168) and not my macbook (24.60) and that's why (I think) I get no incoming connections.

I also read www.portforward.com and how to create a static IP.

I was connectible before and all of a sudden it stopped one day.

If anyone could help I would appreciate it.

Feb 6, 2010 12:07 PM in response to mnolan14

Hi mnolan14, and a warm welcome to the forums! 🙂

It's quite acceptable to start a new topic of your own, certainly feel free to start a new topic to attract more helpers to your particular situation, here's a link if as is often the case, it's hard to find out where to do it...

http://discussions.apple.com/post!default.jspa?forumID=755

The 24.60.x.x is your outside IP with Comcast, not the one your Router is handing out, & you can't connect to the outside one from within, nor the inside one from outside.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Trouble with port forwarding, DHCP, VUZE, and downloading speed.

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