Is this true?, backlinks from the same IP are not count? A site B site host in C host. B link to A A won't gain backlinks?
I am not fully confident but yes many seo and webmasters prefer to get backlinks from different ips as much as they can . May be by this google judge that site is getting back links from different places and sources .
I have 1 ip with more than 50 domains on it and I do cross link each other and all indexed without a problem.
No, that's not true.. Unless the IP Address is banned.. However, getting backlinks from different IP's is a good indicator of multiply votes by different sources