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BGP multihoming
From: Baldur Norddahl <baldur.norddahl () gmail com>
Date: Wed, 29 Jan 2014 21:32:57 +0100

Apologies for a RIPE question on NANOG, although I believe this issue will
soon enough to be relevant for the ARIN region as well.

I had a customer ask if we could provide him with BGP such that he could be
multihomed. He already has 128 IP addresses from another ISP. Obviously a
/25 is a non go for multihoming as everyone are going to ignore his route.

I would then need to help him with acquiring a /24 PI. Which appears to be
impossible as RIPE does no longer assign PI space and PI can not be
reassigned and thus be bought.

Is assigning a /24 from my own PA space for the purpose of BGP multihoming
considered sufficient "need"?

Could he get some PI from another region, such as ARIN? How does others
handle this situation?



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