North American Network Operators Group

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Re: Interesting new spam technique - getting a lot more popular.

  • From: chuck goolsbee
  • Date: Thu Jun 15 16:38:33 2006

At 2:35 PM -0400 6/15/06, Matt Buford wrote:
But how could this possibly be IP abuse or evil (except perhaps in the eyes of the search engines)? What difference does it make to ARIN if I give a customer 30 IPs from a single /24 or 30 IPs from 30 different /24s?
How is that customer using those IPs? If the IPs are on a single server used for webhosting, it is in violation of ARIN's IPv4 allocation policy.

In every case where we've seen people asking for outrageous amounts of IP space for webhosting it is either because:

* They are trying to game the search engines due to this pervasive folklore.
* They lacked sufficient clue to grok name-based virtual hosting.

The latter can be fixed quite easily. I wish I had some way of debunking the former.

It makes little difference to me and is trivial to do in my topology since I already have 30+ /24s on the interface.
Just becasue you can, doesn't mean that you should. But hey, your network, your rules I guess.

It is slightly more work to document the IPs since they each have to be put into my database instead of a single range, but this is handled by the server people.
I prefer to have our 'server people' and our 'network people' working together without annoying each other too much.

While my use of the word "evil" was a smirking poke at the dominant search engine, I don't really think this behavior is malice so much as disregard for the ecosystem. We've done our best to be very conservative in our IP allocations to our customers, if nothing else to remain good neighbors to the rest of the Network.

I wasn't even aware of this bizarre SEO/IP scheme until we made that acquisition two years ago. Now I look around and see operations a fraction of our size consuming large allocations for small installations. The pursuit of a page rank seems a pretty selfish reason to consume a limited resource.