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About ARP
Name: xiaodong0412 Date: February 29, 2004 at 19:55:09 Pacific OS: solaris2.6 CPU/Ram: blade 1000
Comment:
I add a IP address using shell,how could I program with C language to inform other macheines in the LAN updating the ARP cache? Thanks
Name: fpmurphy Date: March 1, 2004 at 13:40:14 Pacific
Reply:
The usual method is to flush the local arp cache and then ping all the systems that need their arp caches updated. The missing local arp cache entry should force a new arp request which in turn update the other systems`caches.
Programmatically, you could try the gratuitous arp trick. Do a Web search for "gratuitous arp" or see volume 1 of Richard Stevens TCP/IP Illustrated.
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