IFRConfig	1.09 (20 Dec 2001)
*IFRConfig is used to configure internet interfaces using reverse-ARP, or BootP, and the netmask using ICMP netmask queries.
Syntax: *IFRConfig [-e] [-f] <interface> [ revarp | bootp ] [ netmask ]

Switches:
  -e  write error report to Inet$Error
  -f  force setting of interface
