这是被DDOS攻击吗？ 有没什么办法缓解下 这两天天天出先这样的问题
这是被DDOS攻击吗？ 有没什么办法缓解下 这两天天天出先这样的问题cnc=网通
dx=电信
lan=内网
电信的线路最近老流量特高
有时候连winbox都进不去 网通的线路都不能用 ping 192.168.0.1 ros IP掉包严重
把电线的线抽掉就好了
极度郁闷
有没什么办法缓解下地 可能是udp flood? 看下connections 好象ROS目前还没有非常有效的方法来挡住DDOS及SYN
只能是使路由受的伤小一点。
有一篇教程有说过，但我忘记在哪看的了，不好意思```
你也在百度上找找```我也帮你找找 在IPV4的环境下，谁都没办法“有效”的保证！！！ 找到了，是一篇防火墙，说是可以减少对ROS的压力：
以下为转：
# feb/18/2006 22:28:00 by RouterOS 2.9.2.7 QQ"710062554
# software id = 83RE-SN0
#
/ ip firewall filter
add chain=input connection-state=invalid action=drop \
comment="丢弃非法连接packets" disabled=no
add chain=input protocol=tcp dst-port=80 connection-limit=90,0 action=drop \
comment="限制总http连接数为90" disabled=no
add chain=input protocol=tcp psd=21,3s,3,1 action=drop \
comment="探测并丢弃端口扫描连接" disabled=no
add chain=input protocol=tcp connection-limit=3,32 src-address-list=black_list \
action=tarpit comment="压制DoS攻击" 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="探测DoS攻击" disabled=no
add chain=input dst-address-type=!local action=drop comment="丢弃掉非本地数据" \
disabled=no
add chain=input src-address-type=!unicast action=drop \
comment="丢弃掉所有非单播数据" disabled=no
add chain=input protocol=icmp action=jump jump-target=ICMP \
comment="跳转到ICMP链表" disabled=no
add chain=input protocol=tcp action=jump jump-target=virus \
comment="跳转到病毒链表" disabled=no
add chain=ICMP protocol=icmp icmp-options=0:0-255 limit=5,5 action=accept \
comment="Ping应答限制为每秒5个包" disabled=no
add chain=ICMP protocol=icmp icmp-options=3:3 limit=5,5 action=accept \
comment="Traceroute限制为每秒5个包" disabled=no
add chain=ICMP protocol=icmp icmp-options=3:4 limit=5,5 action=accept \
comment="MTU线路探测限制为每秒5个包" disabled=no
add chain=ICMP protocol=icmp icmp-options=8:0-255 limit=5,5 action=accept \
comment="Ping请求限制为每秒5个包" disabled=no
add chain=ICMP protocol=icmp icmp-options=11:0-255 limit=5,5 action=accept \
comment="Trace TTL限制为每秒5个包" disabled=no
add chain=ICMP protocol=icmp action=drop comment="丢弃掉任何ICMP数据" \
disabled=no
add chain=forward connection-state=established action=accept \
comment="接受以连接的数据包" disabled=no
add chain=forward connection-state=related action=accept \
comment="接受相关数据包" disabled=no
add chain=forward connection-state=invalid action=drop \
comment="丢弃非法数据包" disabled=no
add chain=forward protocol=tcp connection-limit=50,32 action=drop \
comment="限制每个主机TCP连接数为50条" disabled=no
add chain=forward src-address-type=!unicast action=drop \
comment="丢弃掉所有非单播数据" disabled=no
add chain=forward protocol=icmp action=jump jump-target=ICMP \
comment="跳转到ICMP链表" disabled=no
add chain=forward action=jump jump-target=virus comment="跳转到病毒链表" \
disabled=no
add chain=virus protocol=tcp dst-port=41 action=drop \
comment="DeepThroat.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=82 action=drop \
comment="Worm.NetSky.Y@mm" disabled=no
add chain=virus protocol=tcp dst-port=113 action=drop \
comment="W32.Korgo.A/B/C/D/E/F-1" disabled=no
add chain=virus protocol=tcp dst-port=2041 action=drop \
comment="W33.Korgo.A/B/C/D/E/F-2" disabled=no
add chain=virus protocol=tcp dst-port=3150 action=drop \
comment="DeepThroat.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=3067 action=drop \
comment="W32.Korgo.A/B/C/D/E/F-3" disabled=no
add chain=virus protocol=tcp dst-port=3422 action=drop \
comment="Backdoor.IRC.Aladdinz.R-1" disabled=no
add chain=virus protocol=tcp dst-port=6667 action=drop \
comment="W32.Korgo.A/B/C/D/E/F-4" disabled=no
add chain=virus protocol=tcp dst-port=6789 action=drop \
comment="Worm.NetSky.S/T/U@mm" disabled=no
add chain=virus protocol=tcp dst-port=8787 action=drop \
comment="Back.Orifice.2000.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=8879 action=drop \
comment="Back.Orifice.2000.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=8967 action=drop \
comment="W32.Dabber.A/B-2" disabled=no
add chain=virus protocol=tcp dst-port=9999 action=drop \
comment="W32.Dabber.A/B-3" disabled=no
add chain=virus protocol=tcp dst-port=20034 action=drop \
comment="Block.NetBus.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=21554 action=drop \
comment="GirlFriend.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=31666 action=drop \
comment="Back.Orifice.2000.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=43958 action=drop \
comment="Backdoor.IRC.Aladdinz.R-2" disabled=no
add chain=virus protocol=tcp dst-port=999 action=drop \
comment="DeepThroat.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=6670 action=drop \
comment="DeepThroat.Trojan-4" disabled=no
add chain=virus protocol=tcp dst-port=6771 action=drop \
comment="DeepThroat.Trojan-5" disabled=no
add chain=virus protocol=tcp dst-port=60000 action=drop \
comment="DeepThroat.Trojan-6" disabled=no
add chain=virus protocol=tcp dst-port=2140 action=drop \
comment="DeepThroat.Trojan-7" disabled=no
add chain=virus protocol=tcp dst-port=10067 action=drop \
comment="Portal.of.Doom.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=10167 action=drop \
comment="Portal.of.Doom.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=3700 action=drop \
comment="Portal.of.Doom.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=9872-9875 action=drop \
comment="Portal.of.Doom.Trojan-4" disabled=no
add chain=virus protocol=tcp dst-port=6883 action=drop \
comment="Delta.Source.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=26274 action=drop \
comment="Delta.Source.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=4444 action=drop \
comment="Delta.Source.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=47262 action=drop \
comment="Delta.Source.Trojan-4" disabled=no
add chain=virus protocol=tcp dst-port=3791 action=drop \
comment="Eclypse.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=3801 action=drop \
comment="Eclypse.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=65390 action=drop \
comment="Eclypse.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=5880-5882 action=drop \
comment="Y3K.RAT.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=5888-5889 action=drop \
comment="Y3K.RAT.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=30100-30103 action=drop \
comment="NetSphere.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=30133 action=drop \
comment="NetSphere.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=7300-7301 action=drop \
comment="NetMonitor.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=7306-7308 action=drop \
comment="NetMonitor.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=79 action=drop \
comment="FireHotcker.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=5031 action=drop \
comment="FireHotcker.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=5321 action=drop \
comment="FireHotcker.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=6400 action=drop \
comment="TheThing.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=7777 action=drop \
comment="TheThing.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=1047 action=drop \
comment="GateCrasher.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=6969-6970 action=drop \
comment="GateCrasher.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=2774 action=drop comment="SubSeven-1" \
disabled=no
add chain=virus protocol=tcp dst-port=27374 action=drop comment="SubSeven-2" \
disabled=no
add chain=virus protocol=tcp dst-port=1243 action=drop comment="SubSeven-3" \
disabled=no
add chain=virus protocol=tcp dst-port=1234 action=drop comment="SubSeven-4" \
disabled=no
add chain=virus protocol=tcp dst-port=6711-6713 action=drop \
comment="SubSeven-5" disabled=no
add chain=virus protocol=tcp dst-port=16959 action=drop comment="SubSeven-7" \
disabled=no
add chain=virus protocol=tcp dst-port=25685-25686 action=drop \
comment="Moonpie.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=25982 action=drop \
comment="Moonpie.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=31337-31339 action=drop \
comment="NetSpy.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=8102 action=drop comment="Trojan" \
disabled=no
add chain=virus protocol=tcp dst-port=8011 action=drop comment="WAY.Trojan" \
disabled=no
add chain=virus protocol=tcp dst-port=7626 action=drop comment="Trojan.BingHe" \
disabled=no
add chain=virus protocol=tcp dst-port=19191 action=drop \
comment="Trojan.NianSeHoYian" disabled=no
add chain=virus protocol=tcp dst-port=23444-23445 action=drop \
comment="NetBull.Trojan" disabled=no
add chain=virus protocol=tcp dst-port=2583 action=drop \
comment="WinCrash.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=3024 action=drop \
comment="WinCrash.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=4092 action=drop \
comment="WinCrash.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=5714 action=drop \
comment="WinCrash.Trojan-4" disabled=no
add chain=virus protocol=tcp dst-port=1010-1012 action=drop \
comment="Doly1.0/1.35/1.5trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=1015 action=drop \
comment="Doly1.0/1.35/1.5trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=2004-2005 action=drop \
comment="TransScout.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=9878 action=drop \
comment="TransScout.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=2773 action=drop \
comment="Backdoor.YAI..Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=7215 action=drop \
comment="Backdoor.YAI.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=54283 action=drop \
comment="Backdoor.YAI.Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=1003 action=drop \
comment="BackDoorTrojan-1" disabled=no
add chain=virus protocol=tcp dst-port=5598 action=drop \
comment="BackDoorTrojan-2" disabled=no
add chain=virus protocol=tcp dst-port=5698 action=drop \
comment="BackDoorTrojan-3" disabled=no
add chain=virus protocol=tcp dst-port=31554 action=drop \
comment="SchainwindlerTrojan-2" disabled=no
add chain=virus protocol=tcp dst-port=18753 action=drop \
comment="Shaft.DDoS.Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=20432 action=drop \
comment="Shaft.DDoS.Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=65000 action=drop \
comment="Devil.DDoS.Trojan" disabled=no
add chain=virus protocol=tcp dst-port=11831 action=drop \
comment="LatinusTrojan-1" disabled=no
add chain=virus protocol=tcp dst-port=29559 action=drop \
comment="LatinusTrojan-2" disabled=no
add chain=virus protocol=tcp dst-port=1784 action=drop \
comment="Snid.X2Trojan-1" disabled=no
add chain=virus protocol=tcp dst-port=3586 action=drop \
comment="Snid.X2Trojan-2" disabled=no
add chain=virus protocol=tcp dst-port=7609 action=drop \
comment="Snid.X2Trojan-3" disabled=no
add chain=virus protocol=tcp dst-port=12348-12349 action=drop \
comment="BionetTrojan-1" disabled=no
add chain=virus protocol=tcp dst-port=12478 action=drop \
comment="BionetTrojan-2" disabled=no
add chain=virus protocol=tcp dst-port=57922 action=drop \
comment="BionetTrojan-3" disabled=no
add chain=virus protocol=tcp dst-port=3127 action=drop \
comment="Worm.Novarg.a.Mydoom.a1." disabled=no
add chain=virus protocol=tcp dst-port=6777 action=drop \
comment="Worm.BBeagle.a.Bagle.a." disabled=no
add chain=virus protocol=tcp dst-port=8866 action=drop \
comment="Worm.BBeagle.b" disabled=no
add chain=virus protocol=tcp dst-port=2745 action=drop \
comment="Worm.BBeagle.c-g/j-l" disabled=no
add chain=virus protocol=tcp dst-port=2556 action=drop \
comment="Worm.BBeagle.p/q/r/n" disabled=no
add chain=virus protocol=tcp dst-port=20742 action=drop \
comment="Worm.BBEagle.m-2" disabled=no
add chain=virus protocol=tcp dst-port=4751 action=drop \
comment="Worm.BBeagle.s/t/u/v" disabled=no
add chain=virus protocol=tcp dst-port=2535 action=drop \
comment="Worm.BBeagle.aa/ab/w/x-z-2" disabled=no
add chain=virus protocol=tcp dst-port=5238 action=drop \
comment="Worm.LovGate.r.RpcExploit" disabled=no
add chain=virus protocol=tcp dst-port=1068 action=drop comment="Worm.Sasser.a" \
disabled=no
add chain=virus protocol=tcp dst-port=5554 action=drop \
comment="Worm.Sasser.b/c/f" disabled=no
add chain=virus protocol=tcp dst-port=9996 action=drop \
comment="Worm.Sasser.b/c/f" disabled=no
add chain=virus protocol=tcp dst-port=9995 action=drop comment="Worm.Sasser.d" \
disabled=no
add chain=virus protocol=tcp dst-port=10168 action=drop \
comment="Worm.Lovgate.a/b/c/d" disabled=no
add chain=virus protocol=tcp dst-port=20808 action=drop \
comment="Worm.Lovgate.v.QQ" disabled=no
add chain=virus protocol=tcp dst-port=1092 action=drop \
comment="Worm.Lovgate.f/g" disabled=no
add chain=virus protocol=tcp dst-port=20168 action=drop \
comment="Worm.Lovgate.f/g" disabled=no
add chain=virus protocol=tcp dst-port=1363-1364 action=drop \
comment="ndm.requester" 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="cichainlid" \
disabled=no
add chain=virus protocol=tcp dst-port=3410 action=drop \
comment="Backdoor.Optixprotocol" disabled=no
add chain=virus protocol=tcp dst-port=8888 action=drop \
comment="Worm.BBeagle.b" disabled=no
add chain=virus protocol=udp dst-port=44444 action=drop \
comment="Delta.Source.Trojan-7" disabled=no
add chain=virus protocol=udp dst-port=8998 action=drop \
comment="Worm.Sobig.f-3" disabled=no
add chain=virus protocol=udp dst-port=123 action=drop comment="Worm.Sobig.f-1" \
disabled=no
add chain=virus protocol=tcp dst-port=3198 action=drop \
comment="Worm.Novarg.a.Mydoom.a2." disabled=no
add chain=virus protocol=tcp dst-port=139 action=drop comment="Drop Blaster \
Worm" disabled=no
add chain=virus protocol=tcp dst-port=135 action=drop comment="Drop Blaster \
Worm" disabled=no
add chain=virus protocol=tcp dst-port=445 action=drop comment="Drop Blaster \
Worm" disabled=no
/ ip firewall connection tracking
set enabled=yes tcp-syn-sent-timeout=5s tcp-syn-received-timeout=5s \
tcp-established-timeout=10h tcp-fin-wait-timeout=2m \
tcp-close-wait-timeout=1m tcp-last-ack-timeout=30s \
tcp-time-wait-timeout=2m tcp-close-timeout=10s udp-timeout=30s \
udp-stream-timeout=3m icmp-timeout=10s generic-timeout=10m \
tcp-syncookie=yes 把防火墙另存为*.rsc
ftp到ROS，import 导入就行了。
但是我没测试过，你试一下看看 看封了好多端口哦
怕把一些网吧有用的东西封了
。。。。。。。。。。。。。。。。。。。 呵呵。。。据说而已，其实更糟糕 找电信换ip吧
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