[9920] in North American Network Operators' Group
Re: NSP ... New Information
daemon@ATHENA.MIT.EDU (Edward Fang)
Mon Jun 9 00:38:25 1997
Date: Mon, 9 Jun 1997 00:34:03 -0400 (EDT)
From: Edward Fang <edfang@visi.net>
To: Jeremy Porter <jerry@fc.net>
cc: Larry Vaden <vaden@texoma.net>, nanog@merit.edu, tispa@swri.edu
In-Reply-To: <199706090351.WAA19857@freeside.fc.net>
This is all great and dandy, but then why does it appear that anybody with
a cable modem this side of the sun are using static IP's. Granted that
the Nic probably didn't allocate the current /8 (or the next one), but I
don't see any (and didn't see any prior) 'investigation' to make dynamic
allocation possible (or using RFC1918 addresses). Are they looking at
DHCP or RFC1918 as a solution for their userbase ?
While we're here pulling our teeth on returning addresses and not
allowing static IP's for a combined user base of several million internet
users, a group of users with less than 50K (correct me if I'm wrong here)
and no track history of rwhois/swipped addresses gets gets /8's for
allocation to a static IP userbase.......
Ed
On Sun, 8 Jun 1997, Jeremy Porter wrote:
:
:Use DHCP, get your customers to use DHCP. Current Best Current Pratices
:for IP allocations (http://ftp.fc.net/rfc/rfc2050.txt) states:
: 5. Due to the requirement to increase the utilization efficiency
: of IPv4 address space, all assignments are made with the
: assumption that sites make use of variable length subnet mask
: (VLSM) and classless technologies within their network. Any
: request for address space based on the use of classfull
: assumptions will require a detailed justification. The use of
: classfull technologies for the purposes of administrative
: convenience is generally insupportable due to the limited
: availability of free IPv4 address space.
:...
: 7.
: While it is understood that the use of static addressing may
: ease some aspects of administration, the current rate of
: consumption of the remaining unassigned IPv4 address space does
: not permit the assignment of addresses for administrative ease.
: Organizations considering the use of static IP address assignment
: are expected to investigate and implement dynamic assignment
: technologies whenever possible.
:
:
:This means that you should use renumbering technology as much as
:possible, so that when you can justify a /19 you can get one,
:until then, find an ISP that is multi-homes and can provide you
:the IP addresses you need, and consider two connections to them,
:giving you the benefit of being multi-homed without the cost of
:the routers needed for full BGP, or needing to justify a /19.
:
:
