Justin M. Streiner
streiner at cluebyfour.org
Wed Jan 29 17:25:55 UTC 2014
On Wed, 29 Jan 2014, Baldur Norddahl wrote:
> 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.
Not necessarily everyone, but a lot of providers will filter that. More
headaches than it's worth.
> 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"?
I haven't looked at RIPE policies in a while, but I would imagine that
assigning a customer a /24 of your space because they need to multihome is
considered a justifiable use.
> Could he get some PI from another region, such as ARIN? How does others
> handle this situation?
Most likely no, for two reasons. 1. Most RIRs don't assign IPv4 /24s to
end-users except in very special cases, 2. The smallest PI block they
would assign is usually something like a /21 or /22, so your customer
would need to be justifiably using that much space before they could apply
for a PI block, and 3, if the customer is in an area outside of $RIR's
service area, they would direct them to contact the appropriate RIR.
I also hope your customer is making plans for IPv6 deployment.
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