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24 .Nd reverse ARP daemon
39 utility services Reverse ARP requests on the Ethernet connected to
41 Upon receiving a request,
43 maps the target hardware address to an IP address via its name, which
44 must be present in both the
49 If a host does not exist in both databases, the translation cannot
50 proceed and a reply will not be sent.
52 By default, a request is honored only if the server
56 can "boot" the target; that is, a file or directory matching the glob
57 .Pa /tftpboot/\fIipaddr\fP*
60 is the target IP address in hex.
61 For example, the IP address 204.216.27.18 will be replied to if any of
62 .Pa /tftpboot/CCD81B12 ,
63 .Pa /tftpboot/CCD81B12.SUN3 ,
65 .Pa /tftpboot/CCD81B12-boot
67 This requirement can be overridden with the
73 forks a copy of itself and runs in the background.
74 Anomalies and errors are reported via
77 The following options are available:
78 .Bl -tag -width indent
80 Listen on all the Ethernets attached to the system.
83 is omitted, an interface must be specified.
96 Run in the foreground.
98 Specify the pathname of the PID file.
100 .Pa /var/run/rarpd.pid
102 .Pa /var/run/rarpd.ifname.pid
103 will be used depending on the
105 flag or the specified interface name.
107 Supply a response to any RARP request for which an ethernet to IP address
108 mapping exists; do not depend on the existence of
109 .Pa /tftpboot/\fIipaddr\fP* .
111 Supply an alternate tftp root directory to
119 to selectively respond to RARP requests, but use an alternate directory
122 Enable verbose syslogging.
125 .Bl -tag -width /etc/ethers -compact
129 .It Pa /var/run/rarpd.pid
138 .%T "RFC 903: Reverse Address Resolution Protocol"
144 .An Craig Leres Aq Mt leres@ee.lbl.gov
146 .An Steven McCanne Aq Mt mccanne@ee.lbl.gov .
147 Lawrence Berkeley Laboratory, University of California, Berkeley, CA.
151 utility can depend on the DNS to resolve the name discovered from
153 If this name is not in the DNS but is in
155 the DNS lookup can cause a delayed RARP response, so in this situation
156 it is recommended to configure