1SEND_ARP(8)                 System Manager's Manual                SEND_ARP(8)
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NAME

6       send_arp  -  tool  to  notify network of a new IP address / MAC address
7       mapping
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SYNOPSIS

10       send_arp takes the supplied data and sends it out as an  arp  broadcast
11       on  the  specified network device. This tool is mostly used by software
12       (such as piranha) that manipulates virtual IP addresses  and  needs  to
13       notify the network that the device servicing an IP address has changed.
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15       send_arp [-i ARG"]old-ip-addrold-mac-addrnew-ip-addrnew-mac-addr"
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DESCRIPTION

19       send_arp  sends  out  an  arp broadcast on the specified network device
20       (defaults to eth0), reporting an old and new IP address  mapping  to  a
21       MAC  address.  This  is  most useful in situations involving virtual IP
22       addresses, where the network device servicing that address has changed,
23       and other network arp caches need to be notified about it. All the data
24       is specified in the command line and is simply passed along in  an  arp
25       message  frame.   Since  the old and new data specified can contain the
26       same information, this tool can also be used to refresh arp  caches  or
27       send periodic broadcasts.
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29       send_arp  simply  takes  the  specified arguments and places them in an
30       ethernet arp broadcast.is a daemon used by pulse to monitor the running
31       status  of  the specified services on clustered servers.  This tool has
32       NO error checking and should not be run without the direct  supervision
33       of pulse!
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OPTIONS

37       -iARG  Optional. Indicates the network device to send the arp broadcast
38              on. If omitted, the program defaults to eth0.
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40       old-ip-addr
41              The original IP address (specified  in  nnn.nnn.nnn.nnn  format)
42              that  the  MAC address specified in "old-mac-addr" had mapped to
43              it.
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45       old-mac-addr
46              The MAC address that was servicing the IP address  specified  in
47              "old-ip-addr".   The MAC address is specified in hex, and can be
48              formatted with or without colon (":") separators.
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50       new-ip-addr
51              The new IP address (specified in  nnn.nnn.nnn.nnn  format)  that
52              the  MAC  address  specified in "new-mac-addr" now has mapped to
53              it.
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55       new-mac-addr
56              The MAC address that is now servicing the IP  address  specified
57              in  "new-ip-addr".  The MAC address is specified in hex, and can
58              be formatted with or without colon (":") separators.
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AUTHOR

62       send_arp: Yuri Volobuev 1997
63       man page: Keith Barrett <kbarrett@redhat.com>
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674th Berkeley Distribution       Thu May 10 2001                    SEND_ARP(8)
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