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Invisiblefunkymonk
Get's down, withthe get-down.
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Registered: 11/29/02
Posts: 8,160
Loc: saskatchewan
SuperScan
    #2610364 - 04/28/04 04:29 AM (14 years, 30 days ago)

So I'm up late, I'm bored, and I started scanning my IP range, scanning 20 at a time..
This program reports back that xx many host's are live, then it starts tcp/udp scans
then i lose my network connection..

what's up with this? is there a ip in the range that's causing this? is it the program? is it my homemade cable? I know it may be alot of thing's, but what are your guy's idea's?




****all the above is pure fiction, no ports where harmed, scanned, fingered, or violated in anyway*********


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Offlinenife
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Registered: 12/26/03
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Re: SuperScan [Re: funkymonk]
    #2610382 - 04/28/04 04:37 AM (14 years, 30 days ago)

I bet you are flooding your connection, try using fewer threads on your scan. Also it may be that your cpu can't handle all of the new connections its trying to make at once. we're talking thousands of ports to try on each and every host. You do the math thats kinda a lot. Though on a good connection its easily do-able.


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Invisiblefunkymonk
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Re: SuperScan [Re: nife]
    #2610974 - 04/28/04 12:32 PM (14 years, 30 days ago)

i've got a good connection, good computer, so that's not the case..
I shall scan a smaller range of ip's..with a smaller range of ports to scan...


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Offline3DSHROOM
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Registered: 04/20/99
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Re: SuperScan [Re: funkymonk]
    #2612972 - 04/28/04 09:20 PM (14 years, 29 days ago)

Most ISP's don't like you mass scanning IPs/ports.


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Invisiblefunkymonk
Get's down, withthe get-down.
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Registered: 11/29/02
Posts: 8,160
Loc: saskatchewan
Re: SuperScan [Re: funkymonk]
    #2613438 - 04/28/04 11:16 PM (14 years, 29 days ago)

fair enough,

but do you think that is what disconnected me?


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Offline3DSHROOM
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Re: SuperScan [Re: funkymonk]
    #2613828 - 04/29/04 12:47 AM (14 years, 29 days ago)

Hard to say really..


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Invisiblezeta
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Registered: 05/25/02
Posts: 3,972
Re: SuperScan [Re: funkymonk]
    #2613866 - 04/29/04 12:57 AM (14 years, 29 days ago)

I'd say your ISP probably disconnected you


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Offlinenife
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Re: SuperScan [Re: zeta]
    #2614417 - 04/29/04 03:11 AM (14 years, 29 days ago)

I SERIOUSLY doubt your isp disconnected you. Take it from someone who used to scan from a 10mbit. Its really not that hard to flood a connection with a scan. I could do it with 50 hosts doing a full portscan on each. so assuming you have like a 2.5 mbit connection(a good comcast cable) then 12 or so hosts doing full portscan would just about fill your conection. Not with data, just the connections in and out are time consuming and windows TCP/IP stack isn't the greatest.

ISP's don't just pull the plug and then put it back on. Basically if they are going to shut you down for scanning, you aren't going to get it back without a phone call and a good reason for scanning.


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Invisiblefunkymonk
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Registered: 11/29/02
Posts: 8,160
Loc: saskatchewan
Re: SuperScan [Re: nife]
    #2615649 - 04/29/04 01:04 PM (14 years, 29 days ago)

"but ISP customer service guy, it must be a virus"


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InvisibleTinMan
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Registered: 10/01/02
Posts: 2,956
Loc: Russia
Re: SuperScan [Re: nife]
    #2618507 - 04/29/04 10:18 PM (14 years, 28 days ago)

Consider it a warning. There are automated scripts that look for this type of scanning. No human interaction is needed to disconnect a customer. ISPs don't care if its legit scanning or not, portscanning is portscanning.


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