[nsp] using /31s

Tomas Daniska tomas at tronet.com
Tue Feb 10 11:57:11 EST 2004

> The problem w/
> 'ip unnumbered'
> Is that you now depend on another interface being up.  
> Granted the other 
> interface is usually a ethernet interface which is pretty 
> reliable, you 
> open yourself up to one more point of failure.

one usually wants a _stable_, link-independent ip on a box - so it's not
needed to try all possible ip's just to reach the box in case some
link(s) fail(s)

so one usually has a loopback interface which doesn't use to go down...



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