mailing list archives
RE: Minimum prefix length?
From: "Ejay Hire" <ejay.hire () isdn net>
Date: Wed, 11 Jun 2003 14:58:16 -0500
This doesn't seem to be much of a problem with prefixes less than or equal to /24. Domestically, Verio is the big
exception. They seem to filter anything longer than a /20.
From: Temkin, David [mailto:temkin () sig com]
Sent: Wednesday, June 11, 2003 2:04 PM
To: nanog () merit edu
Subject: Minimum prefix length?
A few years ago I had an issue with a few of the larger carriers rejecting my routes (from a natural Class B space)
because their prefix length was too short (at one point I simply had the /16 divided into two /17's and this still got
rejected in some places). I can't remember which carriers exactly, but it may have been some larger transit providers
Anyone know what the current attitude is by carriers about this? Nowadays with ever-growing memory and CPU it doesn't
seem like it's as much of an issue. In an environment where we're all trying to conserve address space watching
natural boundries doesn't seem all that smart.
IMPORTANT:The information contained in this email and/or its attachments is confidential. If you are not the intended
recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments.
Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient
is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer,
solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or
her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of
the information contained herein or that this message or any of its attachments is free of viruses.