[107000] in North American Network Operators' Group
Re: It's Ars Tech's turn to bang the IPv4 exhaustion drum
daemon@ATHENA.MIT.EDU (Randy Bush)
Tue Aug 19 13:50:19 2008
Date: Tue, 19 Aug 2008 10:50:14 -0700
From: Randy Bush <randy@psg.com>
To: Alain Durand <alain_durand@cable.comcast.com>
In-Reply-To: <C4D07F0D.17843%alain_durand@cable.comcast.com>
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
> In practice, many routers require the packet to go twice in the hardware if
> the prefix length is > 64 bits, so even though it is a total waste of space,
> it is not stupid to use /64 for point-to-point links and even for loopbacks!
some of us remember when we thought similarly for /24s for p2p links,
especially when using rip.
and consider matsuzaki-san's dos vulnerability on a /64 p2p link. the
prudent operational advice today is to use a /127.
randy
