nanog mailing list archives

Re: Only 5x IPv4 /8 remaining at IANA


From: Kevin Stange <kevin () steadfast net>
Date: Tue, 19 Oct 2010 14:55:42 -0500

On 10/19/2010 10:15 AM, John van Oppen wrote:
I would say for most of our customers, especially in the hosting space, a "class C" is a /24, they just don't know 
networking at all and build their hosting lans using /24s for each vlan.

Very few of the requests that we get are submitted using CIDR notation.   Personally, I think this is a big reason 
for random table bloat, I have had so many arguments about customers being able to aggregate announcements for BGP it 
is not even funny...   the "I want to announce the blocks as a class Cs" request is irritatingly common.

It's been our general policy to always respond in CIDR notation whenever
we get a request in class notation and to hope that our customers either
figure out what that means on their own or ask us for clarification and
learn something.

IPv6 is helping because a lot of people seem to be making the connection
that the "slash" notation is related between the two.

-- 
Kevin Stange
Chief Technology Officer
Steadfast Networks
http://steadfast.net
Phone: 312-602-2689 ext. 203 | Fax: 312-602-2688 | Cell: 312-320-5867

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