[sdnog] How does RIR un-allocate IP resources

Hiba Eltigani higba6 at gmail.com
Fri Jan 23 21:24:04 SAST 2015

Hello Samir
   RIRs usually have differenet policies to reach the stage where they have
to un-allocate resources. I think in Afrinic case, member will have to be
overdue for around 2 years and he will be notified by different means
including e-mail, post and sometimes phone before the process start.
    RIRs use their publicaly accessed whois databases as a proof of
allocation and based on that some providers cross-check routes received to
make sure that related resources are actually allocated and not hijacked.
So, as part of un-allocation RIR will make the resources free in the
database and this might result in providers stopping advertising the routes
automatically, that is not the common case .
Most of the RIRs usually make checks to insure reclaimed resources are not
visible in Internet nor have associated objects in any Internet Routing
Registry. If it is, then they contact the providers which in most of cases
withdraw the routes.
   In addition there are some entities provide reports on such hijacked
resources to the public, i just can't recall the report name.
On Jan 22, 2015 7:25 PM, "Samir S. Omer" <samir.saif at sudren.edu.sd> wrote:

> Greetings all,
> as we know from the internet ecosystem that operators and companies or
> enterprises obtains their IP addresses from their LIR or RIR (as the case
> in Sudan) in exchange for a certain fees.
> I was wondering in the case of AFRINIC if one of its members failed to pay
> the bill or had any issue that required that its IP resources to be
> un-allocated.
> what is the mechanism that AFRINIC can take to do so? if the members is
> already announcing his prefixes to the internet, is there some sort of
> "black list" ?
> can AFRINIC (or RIR generally) completly un-allocate addresses from that
> member and shut down his BGP announcment to the internet ?
> is may be a simple question, but I really dont know how its done.
> Regards,
> Samir
> --
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