Purchase of IP-address

[zjack]

Can anyone tell me how and where I can purchase a Class C IP-address?

 

[ChrisAC]

You would normally apply for an IP range from your ISP. This range will usually come out of their allocated range. We have a couple of ranges from RIPE and when customers sign up with us for leased lines or ADSL, then they have to fill out a RIPE allocation form which then gets submitted to the IPNOC for approval. However, most customers only get either a /30 range (2 IP's), a /29 (6 IP's) or a /28 (14 IP's). What range they are given depends on what they need for external access. For example, if they only have a firewall and no mail server or anything else then they get a /30, one IP for the router and the other for the firewall. If they have a mail server behind the firewall and perhaps a web server or FTP server or VPN server then they might get a /29.

However, getting a /24 (class C) is not easy and you have to be a VERY large organisation to get one. We couldn't allocate a range ourselves for that so the application would have to go directly to RIPE, and at the moment they are very scrict on IP allocations. If you are in the US then the registry would be ARIN.

So, the question is, why do you need a /24 range? You will have to justify how you would use all those IP addresses.

Chris.
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Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
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