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Posting-Version: version B 2.10.1 6/24/83; site allegra.UUCP
Path: utzoo!linus!philabs!seismo!harpo!eagle!allegra!jdd
From: jdd@allegra.UUCP
Newsgroups: net.bugs.4bsd
Subject: Problems With Ifconfig(8) in 4.2BSD
Message-ID: <1963@allegra.UUCP>
Date: Mon, 7-Nov-83 18:30:58 EST
Article-I.D.: allegra.1963
Posted: Mon Nov  7 18:30:58 1983
Date-Received: Tue, 8-Nov-83 23:23:24 EST
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 14

The ifconfig(8) program, used to configure network devices in 4.2BSD, has a
couple of cute features relating to ARP.

First, the meanings of the "arp" and "-arp" flags are reversed in the
program from their definitions in the manual page.  Specifying "arp" turns
ARP off; specifying "-arp" turns it on.

Second, when ifconfig(8) reports the configuration, it does not interpret
the IFF_NOARP bit, so it doesn't tell you whether or not ARP is on.  The
user must know that 0x80 means IFF_NOARP.

Cheers,
John ("I Hate ARP") DeTreville
Bell Labs, Murray Hill