近段时间生产平台服务上看到不少IP地址发起大量线程，本来打算利用APF或者脚本来阻止这些连接。但想想为何在最后的防御上面做啦？这里我使用防火墙的访问控制列表拒绝就行了，考虑控制列表经常维护操作平凡建议创建组。贴上我的实例：
object-group network deny_ddos
host 70.39.96.146
object-group network permit_other
any
ip access-list extended deny_ddos
deny ip object-group deny_ddos any
permit ip object-group permit_other any
interface FastEthernet0/0/0
description Out-Web80-1 (CNportal)
ip address 115.85.150.130 255.255.255.248
ip access-group deny_ddos in
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
