[72281] in North American Network Operators' Group
Announcing a /19 from a /16
daemon@ATHENA.MIT.EDU (Eric Pylko)
Mon Jul 5 16:02:37 2004
From: "Eric Pylko" <eric@infinitenetworks.us>
To: <nanog@merit.edu>
Date: Mon, 5 Jul 2004 16:02:14 -0400
Errors-To: owner-nanog-outgoing@merit.edu
Hi-
I'm working on a project within a large corporation and asked their =
network
folks about getting a /19 from one of their /16s. I wanted it to avoid =
NAT
and any possible overlapping from using RFC1918 addresses. This project
gets connected to the internet at different times throughout the year at
different locations through different ISPs. I would announce the /19 =
for a
short period of time, maybe a month or so.
The response I got back was that this was impossible since ISPs require =
an
announcement of the /16 the /19 would come from. I have done work with =
ISPs
before (and have read the NANOG list for many years) but haven't heard =
of
such a requirement nor can I find any standards that indicate the same
thing.
Does anyone have requirements of a /19 announcement requires the /16 to =
be
there as well? The company has plenty of /16s that it uses internally =
that
are not being announced on the Internet at all.
Thanks-
-Eric
