jdd@allegra.UUCP (11/08/83)
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