UDP and Port Question

I

Ishakir

Member

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Joined

Sep 3, 2002

Location

Roselle, IL

• Jul 31, 2003

• #1

Hello guys,

I'm really new to the world of broad band an LANs. What I'm trying to figure out is if port 6112 allows UDP out or if it's restricted by my ISP. Yes, I could call them, but is there any way i can get a list of open / closed / restricted ports currently associated with my connection?

Thanks!
-Ish-

 

jajmon

Member

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Joined

Apr 19, 2002

Location

Burnsville, Minnesota

• Jul 31, 2003

• #2

You may want to check this,,,,,

http://www.cert.org/advisories/CA-2001-31.html

It refers to a vulnerablity buffer overflow exploit on systems running CDE (linux/unix) and is a border line topic for discussion in this forum.

 

mbentley

Gloriously Lead, Overclockix Chief Architect

Joined

Sep 26, 2002

Location

Indianapolis, IN

• Jul 31, 2003

• #3

Ishakir said:

Hello guys,

I'm really new to the world of broad band an LANs. What I'm trying to figure out is if port 6112 allows UDP out or if it's restricted by my ISP. Yes, I could call them, but is there any way i can get a list of open / closed / restricted ports currently associated with my connection?

Thanks!
-Ish-

Click to expand...

just out of curiousity, what is it that you are trying to do that needs port 6112 for udp out?

 

X

xtrmeocr

Member

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Joined

Jun 26, 2002

• Jul 31, 2003

• #4

my guess would be any game made by Blizzard.(aka starcraft, warcraft, etc)

 

OP

I

Ishakir

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Joined

Sep 3, 2002

Location

Roselle, IL

• Jul 31, 2003

• Thread Starter
• #5

Very good xtrmeocr you are dead on.

Starcraft to be exact, my little brother plays that game and was kind of upset when he found that he could not host games. He could, although connect just fine.

Thanks for your input guys!

 

Smokeys

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Joined

May 24, 2003

Location

Toronto, Ontario

• Jul 31, 2003

• #6

Try forwarding 6112 tcp/udp to his computer, that may fix his problem

 

OP

I

Ishakir

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Joined

Sep 3, 2002

Location

Roselle, IL

• Jul 31, 2003

• Thread Starter
• #7

How would I do that?
Completely new to this stuff .

Thanks

 

mbentley

Gloriously Lead, Overclockix Chief Architect

Joined

Sep 26, 2002

Location

Indianapolis, IN

• Jul 31, 2003

• #8

are you using a router to share your internet connection??

 

OP

I

Ishakir

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Joined

Sep 3, 2002

Location

Roselle, IL

• Jul 31, 2003

• Thread Starter
• #9

No router. The connection is coming out of the wall and straight into this computer. I'm beginning to think that it's the ISP that has restricted these ports? Not sure if that is possible. No one can direct connect to me nor can I host any games. I'm not behind any firewall currently, will put that up later tonight.

Hope that helps.

Thanks
-Ish-

 

XWRed1

Senior Member

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Joined

Oct 31, 2001

• Jul 31, 2003

• #10

If its plugged straight into his computer then you don't need to forward. I seriously doubt your ISP is blocking it, ISPs usually only stoop to block things that are truly bothersome.

A way to check though would be to have some other person or computer on the Internet scan yours and see if that port comes up blocked.

 

A

AdvanS13

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Joined

Dec 10, 2002

Location

Hillsboro, OR

• Jul 31, 2003

• #11

sometimes certain modems have firewalls built into them....but i doubt its that .

 

X

xtrmeocr

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Joined

Jun 26, 2002

• Jul 31, 2003

• #12

what kind of internet connection do you have? and what OS?

 

OP

I

Ishakir

Member

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Joined

Sep 3, 2002

Location

Roselle, IL

• Jul 31, 2003

• Thread Starter
• #13

Called the internet provider today and it turns out that they DO block ports. I'm assuming its almost all of them since I can't host a thing. They did say, however, that if I got a fixed IP, that I'd be able to control the ports. Think this'd be worth getting (an increase of $10.00 per month).

Unfortunately, this is the only broadband provider in my area (wireless) and nothing is coming to the area any time soon.

Thanks for the help,
Ish

 

Smokeys

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Joined

May 24, 2003

Location

Toronto, Ontario

• Jul 31, 2003

• #14

When you phoned them up, did you specifically mention udp 6112?

Many isps block ports for ones that have caused alot of trouble (80/tcp incoming, 135-139/tcp). It seems odd that they would cover that port.

 

OP

I

Ishakir

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Joined

Sep 3, 2002

Location

Roselle, IL

• Jul 31, 2003

• Thread Starter
• #15

They didn't say what ports exactly, is there any way to check which ports are free besides having someone scan me? No one is currently available to do that right now for me.

 

X

xtrmeocr

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Joined

Jun 26, 2002

• Jul 31, 2003

• #16

i'm betting since this a wireless ISP they are giving you a NAT'd IP. So its basicly all incoming ports are blocked. Its unfortunate its your only boradband option :\

out of curiosity does your ip start with 10. or 192. or 172. ?

 

OP

I

Ishakir

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Joined

Sep 3, 2002

Location

Roselle, IL

• Aug 1, 2003

• Thread Starter
• #17

Yes, my IP begins with a 192. when I use ipconfig. When I use www.whatismyip.com it begins with a 216.

Does this mean something?

Thanks

 

X

xtrmeocr

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Joined

Jun 26, 2002

• Aug 1, 2003

• #18

ip's in the 192 rage are non-routable addresses used for private use. basicly you have to decide if the ability to host servers is worth the $10 a month. if it is then they will probably give you a static public IP.