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I'm trying to make any implementation of mobile-ip
protocol in linux. For it I need a feature of ARP called gratuitous ARP. A
gratuitous ARP is an ARP Reply that is broadcast to all nodes on a link, but
not in response to any ARP Request. When an ARP Reply is broadcast, all hosts
are required to update their local ARP caches, wheteher or not the ARP Reply
was in response to an ARP Request the have issued. It's used when a host has
just changed its hardware address (for instance a mobile host), this packet
causes any other host on the cable that has an entry in its cache for the old
hardware address to update its ARP cache entry accordingly.
I'd like to know if there is any implementation in linux of this feature, for
instance in the arp command.
-- 
+------------------------------------------------------------------------------+
| Valentin Rodrigo Lopez                              e-mail: vrl@tid.es
|
| Div. 4340                                           phone:  +34-1-337 4523
|                          
| C/ Emilio Vargas, 6                                 fax:    +34-1-337 4222
|
| 28043 MADRID
|
| SPAIN
|
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