IP Range Scan Results

[Quazzi]

Hi guys - been a bit scarce l8ly - busy as hell.......
Well, finally, the results of the scan follow; This is a shocker - but then again, I filtered out non-responding (dead) ip's and I scanned on Sunday night (05/10/2003) @ 22:30 - maybe everyone's not connected??

I'm not listing IP Addresses here but anyone with a valid reason can email me requesting the dump of the results for their own perusal

IP Range Scanned - 165.165.0.1 to 165.165.254.254
Total live connections : 554

Thats it - comments??

I'll maybe re-run the scan later on in the week and see what results we get then.

I scanned the IP's by writing a script to ping a range and the response was logged - if u'v got better ideas to scan, please comment or forever hold your peace.

 

[caroper]

So this small minoraty on MyADSL represents 100% of the active users [}]

 

[StephanB]

would be interesting to see the differnce between business hours during the week and after hours.

 

[ernstn]

Pinging may not be the answer. I believe a lot of ADSL users have firewalls in place, some of which will prevent the ping from being effective

 

[desraid]

i beilieve there are thousands of ADSL users out there.
anyways nice try!

 

[paf]

Hi Quazzi,
Interesting. What exactly would constitue a "valid reason" though? - don't answer that.
Ernstn is right - my server for one wouldn't have responded and I can't think of many reasons why a machine on an ADSL connection, on a dynamic IP address nogal, should respond to a ping request.

 

[microfast]

Some software for IP scanning and port scanning

http://207.44.240.49/download/

 

[Harlock]

You need to do a port scan, not an IP ping sweep, I personaly use a firewall and have two computers connected all the time, I deny ICMP, best is to scan port range from 21 to 1024, I found various guys have FTP and WEB servers or Torrents up but block ICMP.

 

[microfast]

IP Scanning finished
9781 sec, 0.150 sec/host

165.165.0.1 - 165.165.254.254

IPs scanned: 65278
Alive hosts: 6482

 

[Quazzi]

<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by microfast</i>
<br />IP Scanning finished
9781 sec, 0.150 sec/host

165.165.0.1 - 165.165.254.254

IPs scanned: 65278
Alive hosts: 6482
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Just completed another - modified the script to test port results too (0-65000) - damn this one took long - very close to your results, I think we're getting close

Results:

Time taken - 12025 secs
IP Range Scanned - 165.165.0.1 - 165.165.254.254
Total live connections : 6411

A bit of a difference from last night - I guess people don't like leaving their ADSL connection on 24/7 - so much for ALWAYS ON eh?

 

[Andre]

Quoting from http://www.telkomsa.net/products/adsl_telkom_internet.jsp

In addition the ADSL session will also be disconnected after idling for sixty minutes. A right click on the mouse will re-establish the connection

 

[LoneGunman]

talking re IP scanning, a little killer app that I use occasionally when bored, to rapidly scan through IP ranges (as well as autolog accessible FTP's for closer er research) is a tool called Grims Ping..
(http://grimsping.cjb.net/) 2 megs in size..
As regards the Telkom switching connection off after 60 minutes of idling, there're a couple of apps around to send pings out and simulate PC activity, to stop servers from assuming you're away and switching you off. Stay Connected is one..

 

[microfast]

started 00.00 monday 6th October

Scanning finished
10038 sec, 0.154 sec/host

165.165.0.1 - 165.165.254.254

IPs scanned: 65278
Alive hosts: 4692

Something interesting: IPs over 165.165.200.xxx have a significantly higher ping response - 80-120ms, whereas IPs below 165.165.200.xxx have a much lower ping response - 25-40ms. This is consistant.

 

[Andre]

<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by LoneGunman</i>
As regards the Telkom switching connection off after 60 minutes of idling, there're a couple of apps around to send pings out and simulate PC activity, to stop servers from assuming you're away and switching you off. Stay Connected is one..
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

You don't even need an app. The Windows Task Scheduler and a batch file to ping somewhere will do the trick.