[nsp] /30 over WAN links

Gert Doering gert at greenie.muc.de
Sat Feb 7 04:46:59 EST 2004


On Fri, Feb 06, 2004 at 09:28:43PM -0500, jlewis at lewis.org wrote:
> > On Fri, Feb 06, 2004 at 01:40:44PM -0800, Hudson Delbert J Contr 61 CS/SCBN wrote:
> > > no waste. a net addy, 2 end point IPS and a bcast.
> > 
> > Wastes 2 addresses for every 2 used.  Go for unnumbered or /31s.
> Other than certain recent IOS versions, does anything else support /31 WAN 
> interfaces?

Hmmm, at least Bintec routers do.  They have no notion of a subnet mask 
for transit networks on p2p links - you configure a single IP address for 
your side and for the other side.  If they happen to be adjacent, you're
using a /31 :)

USENET is *not* the non-clickable part of WWW!
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de

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