Yes, but why are all zeros and all ones in the host field disallowed? Because they seem to be broadcasts or refer to the entire subnet.
On a point-to-point WAN, so what if you send to broadcast? There's only one station on the other end anyway! So IF devices support /31, you can use it. The only advantage would be it wastes fewer addresses, though. Priscilla At 04:03 AM 11/30/01, [EMAIL PROTECTED] wrote: >Sincerely do not know, when you find out let me know. To me using /31 is >against all subnet rules, /31 gives you a subnet mask of 255.255.255.254, >with two host addresses each, but these addresses are not usable. > >The most I have used and seen people use is /30 (255.255.255.252), for WAN >interface IP address allocations. > >Regards. >Oletu > >----- Original Message ----- >From: Nicolas FEVRIER >To: >Sent: Thursday, November 29, 2001 2:39 PM >Subject: /31 subnet. [7:27742] > > > > 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. >_________________________________________________________ >Do You Yahoo!? >Get your free @yahoo.com address at http://mail.yahoo.com ________________________ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=27856&t=27742 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
