Path: utzoo!utgpu!attcan!uunet!mcvax!hp4nl!gouldnl!wytze From: wytze@gouldnl.UUCP (Wytze van der Raay) Newsgroups: comp.unix.aux Subject: Re: Comments from someone using A/UX Summary: broadcast address should be hostpart = all ones Keywords: not a bug Message-ID: <650@gouldnl.UUCP> Date: 10 Aug 88 07:37:54 GMT References: <17331@gatech.edu> <15011@apple.Apple.COM> <7903@mhuxu.UUCP> <15131@apple.Apple.COM> <571@sequent.cs.qmc.ac.uk> Reply-To: wytze@gouldnl.UUCP (Wytze van der Raay) Organization: Gould European Unix Support Centre Lines: 20 In article <571@sequent.cs.qmc.ac.uk> liam@cs.qmc.ac.uk (William Roberts) writes: >3. The default IP broadcast address is not the Berkeley default > >The default IP broadcast address is hostpart = all ones, in our >case 42.255.255.255, whereas our other machines expect the >Berkeley(?) convention of hostpart = all zeros, i.e. 42.0.0.0 >To achieve the desired effect we have to make an explicit >ifconfig call which sets the broadcast address to 42.0.0.0 I'm afraid your Berkeley systems are out-of-date. Since the days of BSD 4.3 the default IP broadcast address is indeed hostpart = all ones, thereby correcting the BSD 4.2 anomaly of using all zeros, which was not according to the recommendation in RFC919. So rather than condemning Apple's AUX on his point, it should be praised, for keeping up-to-date with current IP broadcast standards. -- | Wytze van der Raay ...!mcvax!gouldnl!wytze | | Gould European Unix Support Centre wytze@gouldnl.nl | | Maarssenbroek, The Netherlands (USA) ...!gould!wraay |