How do I send gratuitous ARPs under Linux? How do I tell my DUMMY router that the IP is over here now, under Linux operating systems?You can use the arping command to send a gratuitous reply using the -A option. arping can send ARP REQUEST to a neighbor host:# arping -U {IP-HERE} -I {Interface-Name-HERE}# arping -A -c {Number} -I {Interface-Name-HERE}# arping -U 1.2.3.4 -I eth1The following command will send a Gratuitous ARP reply, four times, on the eth1 interface for IP address 1.2.3.4.# arping -c 4 -A -I eth1 1.2.3.4
Where,
- -A: ARP reply-C 4: Send it four times-I eth1: Use eth1 interface1.2.3.4: Replace this with your actual IP address.
http://www.cyberciti.biz/faq/linux-networking-sending-gratuitous-arps/
还深深埋在心底，要除去，怕是不能活命。
