刘大喵

RouterOS 官方防火墙脚本
#使用方法:将此文本文件扩展名改为 .rsc #登录你的ROS的FTP,上传此文件 #在控制台(可用winbox ...
扫描右侧二维码阅读全文
02
2013/06

RouterOS 官方防火墙脚本

#使用方法:将此文本文件扩展名改为 .rsc
#登录你的ROS的FTP,上传此文件
#在控制台(可用winbox 里的New Terminal)执行命令:
# /import ROSofficial.rsc

#注意这里的设置中假定你的外网网卡的名字是 internet
#需要视情况修改(查找 / 替换)。

#关于TCP连接的一些设置,主要是减少连接的存活时间
/ ip firewall connection tracking
set enabled=yes tcp-syn-sent-timeout=1m tcp-syn-received-timeout=1m \
tcp-established-timeout=1d tcp-fin-wait-timeout=10s \
tcp-close-wait-timeout=10s tcp-last-ack-timeout=10s \
tcp-time-wait-timeout=10s tcp-close-timeout=10s udp-timeout=10s \
udp-stream-timeout=3m icmp-timeout=10s generic-timeout=10m

#删除已有的防火墙(如果有的话)
:foreach i in [/ip firewall filter find] do {/ip firewall filter remove $i}

#导入 RouterOS 官方防火墙脚本,这是神仙在bbs.router.net.cn上看到的。
#http://www.router.net.cn/softrouter/RouterOS/200602/3807.html
#参考manual.pdf P383/615 , 396/628
# TCP/UDP packets with different destination ports coming from the same host would be treated as port scan sequence
#在短时间内从同一地址用不断变化的端口向本机发送大量数据包,视为端口扫描
#短时间内同时建立大量TCP连接(超过10) ,视为 DoS 拒绝服务攻击, 进黑名单一天!
#黑名单上的只能建立三个并发连接, tarpit,是不是打太极 :-)
#内网的数据包不转发
#禁止从路由主机ping外网

/ ip firewall filter

#针对路由主机的,input
add chain=input connection-state=established action=accept comment="accept established connection packets" disabled=no
add chain=input connection-state=related action=accept comment="accept related connection packets" disabled=no
add chain=input connection-state=invalid action=drop comment="drop invalid packets" disabled=no
add chain=input protocol=tcp psd=21,3s,3,1 action=drop comment="detect and drop port scan connections" disabled=no
add chain=input protocol=tcp connection-limit=3,32 src-address-list=black_list action=tarpit comment="suppress DoS attack" disabled=no
add chain=input protocol=tcp connection-limit=10,32 action=add-src-to-address-list address-list=black_list address-list-timeout=1d comment="detect DoS attack" disabled=no
add chain=input dst-address-type=!local action=drop comment="drop all that is not to local" disabled=no
add chain=input src-address-type=!unicast action=drop comment="drop all that is not from unicast" disabled=no
add chain=input protocol=icmp action=jump jump-target=ICMP comment="jump to chain ICMP" disabled=no
add chain=input action=jump jump-target=services comment="jump to chain services" disabled=no
add chain=input action=log log-prefix="input" comment="log everything else" disabled=yes
add chain=input action=drop comment="drop everything else" disabled=no

#针对ICMP数据包
add chain=ICMP protocol=icmp icmp-options=0:0-255 limit=5,5 action=accept comment="0:0 allow ping and limit for 5pac/s" disabled=no
add chain=ICMP protocol=icmp icmp-options=3:3 limit=5,5 action=accept comment="3:3 allow trace and limit for 5pac/s" disabled=no
add chain=ICMP protocol=icmp icmp-options=3:4 limit=5,5 action=accept comment="3:4 allow MTU discovery and limit for 5pac/s" disabled=no
add chain=ICMP protocol=icmp icmp-options=8:0-255 limit=5,5 action=accept comment="8:0 and limit for 5pac/s" disabled=no
add chain=ICMP protocol=icmp icmp-options=11:0-255 limit=5,5 action=accept comment="11:0 allow TTL exceeded and limit for 5pac/s" disabled=no
add chain=ICMP protocol=icmp action=drop comment="Drop everything else" disabled=no

#路由主机上开启的一些端口,用于路由器上的网络服务。默认没有启用几个
add chain=services src-address=127.0.0.1 dst-address=127.0.0.1 action=accept comment="accept localhost" disabled=no
add chain=services protocol=tcp dst-port=20-21 action=accept comment="allow ftp" disabled=no
add chain=services protocol=tcp dst-port=22 action=accept comment="allow sftp, ssh" disabled=no
add chain=services protocol=tcp dst-port=23 action=accept comment="allow telnet" disabled=no
add chain=services protocol=tcp dst-port=80 action=accept comment="allow http, webbox" disabled=no
add chain=services protocol=tcp dst-port=8291 action=accept comment="Allow winbox" disabled=no
add chain=services protocol=udp dst-port=20561 action=accept comment="allow MACwinbox " disabled=no
add chain=services src-address=159.148.172.205 protocol=tcp dst-port=7828 action=accept comment="..." disabled=no
#
add chain=services protocol=tcp dst-port=2000 action=accept comment="Bandwidth server" disabled=yes
add chain=services protocol=udp dst-port=5678 action=accept comment=" MT Discovery Protocol" disabled=yes
add chain=services protocol=tcp dst-port=53 action=accept comment="allow DNS request" disabled=yes
add chain=services protocol=udp dst-port=53 action=accept comment="Allow DNS request" disabled=yes
add chain=services protocol=udp dst-port=1701 action=accept comment="allow L2TP" disabled=yes
add chain=services protocol=tcp dst-port=1723 action=accept comment="allow PPTP" disabled=yes
add chain=services protocol=gre action=accept comment="allow PPTP and EoIP" disabled=yes
add chain=services protocol=ipencap action=accept comment="allow IPIP" disabled=yes
add chain=services protocol=udp dst-port=1900 action=accept comment="UPnP" disabled=yes
add chain=services protocol=tcp dst-port=2828 action=accept comment="UPnP" disabled=yes
add chain=services protocol=udp dst-port=67-68 action=accept comment="allow DHCP" disabled=yes
add chain=services protocol=tcp dst-port=8080 action=accept comment="allow Web Proxy" disabled=yes
add chain=services protocol=tcp dst-port=123 action=accept comment="allow NTP" disabled=yes
add chain=services protocol=tcp dst-port=161 action=accept comment="allow SNMP" disabled=yes
add chain=services protocol=tcp dst-port=443 action=accept comment="allow https for Hotspot" disabled=yes
add chain=services protocol=tcp dst-port=1080 action=accept comment="allow Socks for Hotspot" disabled=yes
add chain=services protocol=udp dst-port=500 action=accept comment="allow IPSec connections" disabled=yes
add chain=services protocol=ipsec-esp action=accept comment="allow IPSec" disabled=yes
add chain=services protocol=ipsec-ah action=accept comment="allow IPSec" disabled=yes
add chain=services protocol=tcp dst-port=179 action=accept comment="Allow BGP" disabled=yes
add chain=services protocol=udp dst-port=520-521 action=accept comment="allow RIP" disabled=yes
add chain=services protocol=ospf action=accept comment="allow OSPF" disabled=yes
add chain=services protocol=udp dst-port=5000-5100 action=accept comment="allow BGP" disabled=yes
add chain=services protocol=tcp dst-port=1720 action=accept comment="allow Telephony" disabled=yes
add chain=services protocol=udp dst-port=1719 action=accept comment="allow Telephony" disabled=yes
add chain=services protocol=vrrp action=accept comment="allow VRRP " disabled=yes

#丢弃已知的病毒特征包 virus
add chain=virus protocol=tcp dst-port=135-139 action=drop comment="Drop Blaster Worm" disabled=no
add chain=virus protocol=udp dst-port=135-139 action=drop comment="Drop Messenger Worm" disabled=no
add chain=virus protocol=tcp dst-port=445 action=drop comment="Drop Blaster Worm" disabled=no
add chain=virus protocol=udp dst-port=445 action=drop comment="Drop Blaster Worm" disabled=no
add chain=virus protocol=tcp dst-port=593 action=drop comment="________" disabled=no
add chain=virus protocol=tcp dst-port=1024-1030 action=drop comment="________" disabled=no
add chain=virus protocol=tcp dst-port=1080 action=drop comment="Drop MyDoom" disabled=no
add chain=virus protocol=tcp dst-port=1214 action=drop comment="________" disabled=no
add chain=virus protocol=tcp dst-port=1363 action=drop comment="ndm requester" disabled=no
add chain=virus protocol=tcp dst-port=1364 action=drop comment="ndm server" disabled=no
add chain=virus protocol=tcp dst-port=1368 action=drop comment="screen cast" disabled=no
add chain=virus protocol=tcp dst-port=1373 action=drop comment="hromgrafx" disabled=no
add chain=virus protocol=tcp dst-port=1377 action=drop comment="cichlid" disabled=no
add chain=virus protocol=tcp dst-port=1433-1434 action=drop comment="Worm" disabled=no
add chain=virus protocol=tcp dst-port=2745 action=drop comment="Bagle Virus" disabled=no
add chain=virus protocol=tcp dst-port=2283 action=drop comment="Drop Dumaru.Y" disabled=no
add chain=virus protocol=tcp dst-port=2535 action=drop comment="Drop Beagle" disabled=no
add chain=virus protocol=tcp dst-port=2745 action=drop comment="Drop Beagle.C-K" disabled=no
add chain=virus protocol=tcp dst-port=3127-3128 action=drop comment="Drop MyDoom" disabled=no
add chain=virus protocol=tcp dst-port=3410 action=drop comment="Drop Backdoor OptixPro" disabled=no
add chain=virus protocol=tcp dst-port=4444 action=drop comment="Worm" disabled=no
add chain=virus protocol=udp dst-port=4444 action=drop comment="Worm" disabled=no
add chain=virus protocol=tcp dst-port=5554 action=drop comment="Drop Sasser" disabled=no
add chain=virus protocol=tcp dst-port=8866 action=drop comment="Drop Beagle.B" disabled=no
add chain=virus protocol=tcp dst-port=9898 action=drop comment="Drop Dabber.A-B" disabled=no
add chain=virus protocol=tcp dst-port=10000 action=drop comment="Drop Dumaru.Y" disabled=no
add chain=virus protocol=tcp dst-port=10080 action=drop comment="Drop MyDoom.B" disabled=no
add chain=virus protocol=tcp dst-port=12345 action=drop comment="Drop NetBus" disabled=no
add chain=virus protocol=tcp dst-port=17300 action=drop comment="Drop Kuang2" disabled=no
add chain=virus protocol=tcp dst-port=27374 action=drop comment="Drop SubSeven" disabled=no
add chain=virus protocol=tcp dst-port=65506 action=drop comment="Drop PhatBot, Gaobot" disabled=no

#转发的数据包 forward
add chain=forward connection-state=established action=accept comment="accept established packets" disabled=no
add chain=forward connection-state=related action=accept comment="accept related packets" disabled=no
add chain=forward connection-state=invalid action=drop comment="drop invalid packets" disabled=no
add chain=forward src-address-type=!unicast action=drop comment="drop all that is not from unicast" disabled=no
add chain=forward in-interface=internet src-address-list=not_in_internet action=drop comment="drop data from bogon IP's" disabled=no
add chain=forward in-interface=!internet dst-address-list=not_in_internet action=drop comment="drop data to bogon IP's" disabled=no
add chain=forward protocol=icmp action=jump jump-target=ICMP comment="jump to chain ICMP" disabled=no
add chain=forward action=jump jump-target=virus comment="jump to virus chain" disabled=no
add chain=forward action=accept comment="Accept everything else" disabled=no

#从路由主机访问外网的数据包 output
add chain=output connection-state=invalid action=drop comment="drop invalid packets" disabled=no
add chain=output connection-state=related action=accept comment="accept related packets" disabled=no
add chain=output connection-state=established action=accept comment="accept established packets" disabled=no
add chain=output action=drop comment="Drop all connections from this router" disabled=no

#定义内网特殊地址列表 bogon IP
/ ip firewall address-list
add list=not_in_internet address=0.0.0.0/8 comment="" disabled=no
add list=not_in_internet address=172.16.0.0/12 comment="" disabled=no
add list=not_in_internet address=192.168.0.0/16 comment="" disabled=no
add list=not_in_internet address=10.0.0.0/8 comment="" disabled=no
add list=not_in_internet address=169.254.0.0/16 comment="" disabled=no
add list=not_in_internet address=127.0.0.0/8 comment="" disabled=no
add list=not_in_internet address=224.0.0.0/3 comment="" disabled=no

#默认设置,没什么改变  connection helper
/ ip firewall service-port
set ftp ports=21 disabled=no
set tftp ports=69 disabled=no
set irc ports=6667 disabled=no
set h323 disabled=yes
set quake3 disabled=no
set mms disabled=no
set gre disabled=yes
set pptp disabled=yes

If you think my article is useful to you, please feel free to appreciate

Leave a Comment

联系我