Computing.Net > Forums > Windows XP > How to scan ports?

Computer Problems? Computing.Net has over 1,000,000 posts about all things technology related! Over 90% answered within 24 hours! Click here to start participating now! Also, be sure to check out the New User Guide.

How to scan ports?

Reply to Message Icon

Name: RangerTm
Date: February 10, 2002 at 14:58:04 Pacific
Comment:

Hi guys!
Does anyone know I can see what tcp/ip ports that are open?
I need this because I have ADSL with a cisco router and I have tried to open the ports GameSpy needs, but "netstat -a" doesn't show the ports I have opened via "set nat" in my router - so I was wondering if the ports really are open...
How do I scan all active ports?



Sponsored Link
Ads by Google

Response Number 1
Name: matti salminen
Date: February 10, 2002 at 16:55:52 Pacific
Reply:

netstat -a will show you the ports that are open on your PC only. To see the open ports on your router, you need to probe them from the "outside". One way (only one I know) would be to point your browser to https://grc.com/x/ne.dll?bh0bkyd2 and run a port check against your ip address. The NAT box appears to report closed ports as "stealth" and those open on the router but closed on your PC as "closed".


0
Reply to Message Icon

Related Posts

See More


corrupt windows\system 32... SB Live + Win XP



Post Locked

This post is quite old and has been locked from receiving new replies. Please create a new posting instead.


Go to Windows XP Forum Home


Sponsored links

Ads by Google


Results for: How to scan ports?

usb to parallel port www.computing.net/answers/windows-xp/usb-to-parallel-port/178833.html

How to block port 113? www.computing.net/answers/windows-xp/how-to-block-port-113/75030.html

how to unblock port www.computing.net/answers/windows-xp/how-to-unblock-port/144219.html