What is the most standard subnet length on internet
lionair at samsung.com
Mon Dec 22 18:10:24 CST 2008
I appreciate many people gave me advices,
Some of persons asked me about my questions, I'm sorry for that I couldn't reply to everyone.
Because of your help, I could get many opinions and standards regarding IP allocation policy.
by the way, in APNIC's IP allocation sizes policy, there is a comments like below.
"Below are the minimum sizes for allocations and assignments, This information is provided at the request of the ISP community
to assist in filtering policy decisions "
Currently, is there any provider filtering routes under LIR's minimum allocation size such as /22 ?
SAMSUNG NETWORKS Inc.
Email: lionair at samsung.com
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------- Original Message -------
Sender : Danny McPherson<danny at tcb.net>
Date : 2008-12-21 02:42 (GMT+09:00)
Title : Re: What is the most standard subnet length on internet
On Dec 18, 2008, at 9:43 PM, 정치영 wrote:
> Yes, I guess my concern is close to the second meaning.
> It seems so simple. Currently annoucement of /24 seems to be okey,
> most upstream providers accept this.
> However I wonder if there is any ground rule based on any standard
> or official recommandation.
> If there is some standardized rule about prefix length to be
> annouced, I will make my bgp & IP allocation policy of
> each data center of my company, and I will be able to more fairly
> and squarely speak to my customer like this
> "You have to change your server's IP address if you want move your
> server to other place"
Some useful guidance is provided here (and in
subsequent references) as well:
An Architecture for IP Address Allocation with CIDR
Classless Inter-Domain Routing (CIDR): an Address Assignment and
Network Renumbering Overview
A Framework for Inter-Domain Route Aggregation
More information about the NANOG