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防止ARP攻击,使用命令route、grep、ifconfig等。 #!/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." (责任编辑：IT) |