I know that, but the network and broadcast addresses are unusable. Thus the two good addresses for hosts. ""Craig Columbus"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > With a /30 you use 4 IP addresses (network, 2 node, 1 broadcast). You save > addresses with a /31. > Here's a link with more info: > > http://www.ietf.org/rfc/rfc3021.txt?number=3021 > > Thanks, > Craig > > At 08:32 AM 11/30/2001 -0500, you wrote: > >Maybe I'm missing something, but there are only 2 useable addresses in a > >/30, and only 2 interfaces participating in a point-to-point link, so how > >are there 50% of the addresses wasted. > > > >Steve > > > > > >""MADMAN"" wrote in message > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Point to point connections, with a /30 you waste 50% of the > > > avaivalable addresses. > > > > > > Dave > > > > > > Nicolas FEVRIER wrote: > > > > > > > > Hi group, > > > > > > > > I'm puzzled by the use of /31 subnets... > > > > Anybody can explain me the benefits of such a subnet on an interface ? > > > > > > > > Thanxx. > > > > > > > > Nicolas. > > > -- > > > David Madland > > > Sr. Network Engineer > > > CCIE# 2016 > > > Qwest Communications Int. Inc. > > > [EMAIL PROTECTED] > > > 612-664-3367 > > > > > > "Emotion should reflect reason not guide it"
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