防住ARP

在CU一位老兄的blog看到的 先轉貼過來備用 #!/bin/bash declare gw=`route -n | grep -e '^0.0.0.0'` declare gwname=`echo $gw | grep -oe '\w*$'` declare gwip=`echo $gw | grep -oe '[0-9]\{2,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}'` declare gwmac=`arp -n | grep -e $gwip | grep -oe '[0-9A-F]\{2\}:[0-9A-F]\{2\}:[0-9A-F]\{2\}:[0-9A-F]\{2\}:[0-9A-F]\{2\}:[0-9A-F]\{2\}'` echo "switch $gwname arp: $gwip - $gwmac to static" arp -s $gwip $gwmac echo "done, off arp reuqest .." ifconfig $gwname -arp echo "all done." 本文出自 51CTO.COM技術博客