>why would this be needed? > >30 bits works perfect for serial links... Am I missing something?\
It wastes two bits with every subnet. IPv4 address space is not an infinite resource. > >>>> "Karen Young" 10/31/01 02:03PM >>> >Currently you can't use /31 networks. However, there is an RFC that >proposes changes that would allow their use on point-to-point links only. > >RFC 3021 Using 31-Bit Prefixes on IPv4 Point-to-Point Links. A. Retana, >R. White, V. Fuller, D. McPherson. December 2000. (Format: TXT=19771 >bytes) (Status: PROPOSED STANDARD) > >Just an FYI, >Karen > > >>>>>>>>>>>>>>>>>>> Original Message Good...... but you can't have a subnet >with 31 bits.... that would leave >2 >> "hosts" and the network address and the broadcast would use them up, so >you >> end up with 0 hosts per subnet. For point-to-point serial links, you'd >> usually use a /30 (255.255.255.252) which gives you 4 addresses per >subnet >> (1 network, 1 broadcast, and two hosts) > >> Mike W. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=24888&t=24712 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]