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2024年6月1日发(作者:)

Juniper Screens配置

Screens 是Juniper防火墙对应用层(Scans,Floods,不规则IP包,DDos)攻击

的一个过滤器。通过使用大量硬件接口,在路由之前,进行规则匹配。

一、配置一个Screens

1,创建一个screens

#edit security screen ids-option untrust-screen

2,添加screens规则。

#set security screen ids-option untrust-screen alarm-without-drop

#set security screen ids-option untrust-screen icmp ping-death

#set security screen ids-option untrust-screen ip source-route-option

#set security screen ids-option untrust-screen ip tear-drop

#set security screen ids-option untrust-screen tcp port-scan threshold 1000

#set security screen ids-option untrust-screen tcp syn-flood alarm-threshold

1024

#set security screen ids-option untrust-screen tcp syn-flood attack-threshold

200

#set security screen ids-option untrust-screen tcp syn-flood source-threshold

1024

#set security screen ids-option untrust-screen tcp syn-flood

destination-threshold 2048

#set security screen ids-option untrust-screen tcp syn-flood timeout 20

#set security screen ids-option untrust-screen tcp land

3,应用Screens规则到zones

#set security zones security-zone untrust screen untrust-screen

查看命中数:

>show security screen statistics zone untrust

>show security screen statistics interface ge-0/0/0.0

二、泛洪(Flooding)防护

1,限制地址session会话

本文标签: 规则路由硬件大量