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Port Scans

My router is reporting that I am getting port scans from IBM. It is scanning ports 33400 up to 33455. I looked this IP address up under whois and this is what it reports.

Search results for: 129.33.82.49


OrgName: IBM
OrgID: IBM-1
Address: IBM Raleigh - IP Services Team
Address: 3039 Cornwallis Road
City: Reserach Triangle Park
StateProv: NC
PostalCode: 27709-2195
Country: US

NetRange: 129.33.0.0 - 129.33.255.255





Is this WCG doing these scans and if so, WHY?
[Nov 7, 2005 2:32:05 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Port Scans

The scans on your ports are traceroutes that IBM uses in order to direct traffic in the most efficent ways. This topic was gone over and over again with a near riot on the board until it was finally related the reason for the trace route.



"These traceroutes are indeed coming from IBM. They happen whenever someone downloads any significant data from an IBM hosting center. Since IBM uses multiple ISPs, they're done to find the most efficient route to the client to improve throughput. This is why some people noticed these before joining World Community Grid.

They are using software from Route Science (http://www.routescience.com/), if you want to know more.

Bottom line, traceroutes are harmless and, in this case, useful for getting the data to you efficently. Hope this clears up this little mystery. We'll be adding this to our network FAQ for future reference."
----------------------------------------
Rick Alther
World Community Grid Application Developer
[Nov 7, 2005 3:12:17 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Port Scans

Thanks for the answer. smile smile smile
[Nov 7, 2005 5:04:09 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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