Re: Subnets and IPDiscover
Doug Hughes (Doug.Hughes@Eng.Auburn.EDU)
Tue, 20 Feb 1996 17:12:52 -0600
>Return-Path: owner-tkined@ibr.cs.tu-bs.de
>Received: from ra.ibr.cs.tu-bs.de (ra.ibr.cs.tu-bs.de [134.169.246.34]) by dns.eng.auburn.edu (v8.7.3/8.6.4) with SMTP id RAA00329 for <Doug.Hughes@Eng.Auburn.EDU>; Tue, 20 Feb 1996 17:05:51 -0600 (CST)
>Received: from sol [134.169.34.1] by ra.ibr.cs.tu-bs.de (8.6.10/tubsibr) with ESMTP id TAA10217; Tue, 20 Feb 1996 19:30:41 +0100
>Received: from schoenw@localhost by sol.ibr.cs.tu-bs.de (8.6.10/tubsibr) id TAA17576; Tue, 20 Feb 1996 19:30:39 +0100
>Date: Tue, 20 Feb 1996 19:30:39 +0100
>From: Juergen Schoenwaelder <schoenw@ibr.cs.tu-bs.de>
>To: jrandall@credrouter.limited.net
>CC: tkined@ibr.cs.tu-bs.de
>In-reply-to: <01BAF4DF.DF6F2F00@jrandall.limited.net> (message from Justin
> Randall on Tue, 6 Feb 1996 22:09:34 -0500)
>Subject: Re: Subnets and IPDiscover
>Reply-to: schoenw@ibr.cs.tu-bs.de
>
>Hi!
>
>Justin Randall <jrandall@credrouter.limited.net> said:
>
>Justin> I am trying to find every system in use on a CIDR block with a
>Justin> netmask of 255.255.248.0. Is it possible to submit a netmask
>Justin> when doing an IP discover?
>
>No. You need to hack the sources a bit by adding a Tcl proc that
>creates all IP addresses in an address space defined by the network
>address and the netmask. Writing this proc might be tricky in Tcl if
>you want it to run fast.
>
>Perhaps we should extend the icmp command so that you can send ICMP
>messages to whole address spaces without creating a Tcl list of IP
>addresses. This would be a lot faster and simpler. Anyone who wants to
>contribute some code for this?
>
I'm not able to work on it at the moment, but it would be nice if
it would take network/mask pairs.. a list of network/mask pairs
would be the best.
--
____________________________________________________________________________
Doug Hughes Engineering Network Services
System/Net Admin Auburn University
doug@eng.auburn.edu
Pro is to Con as progress is to congress