Class C addresses are commonly used for small to mid-size businesses. IP addresses with a first octet from 192 to 223 are part of this class. Class C addresses also include the second and third octets as part of the Net identifier. The last octet is used to identify each host.
When Search Engine find that you’ve a link coming from same C Class IP on which your website is located, the back link will not have any importance.
So for a successful back linking strategy, it is always advisable to get links from websites on different C class IP. If you source more than one link from same C class IP, you will get benefit of only one link. Please note that you will not get penalized if you’ve link coming from same C class IP, but you’ll not get any advantage either.This is the use of C class IP in SEO.
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