How to block traffic from Specific subnets on Huawei switch 6720s?

Created: Apr 9, 2019 13:14:14Latest reply: Apr 10, 2019 08:39:51 271 6 0 0
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We are getting DDOSattack from 2 internet pools for our source IP addresses we want to block traffic from these destination subnets on our Huawei switch 6720s. we want apply extended ACL on at our internet transit to block DDOS at transit circuits. 


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Popeye_Wang
Admin Created Apr 9, 2019 13:29:59 Helpful(0) Helpful(0)

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Popeye_Wang
Popeye_Wang Admin Created Apr 9, 2019 13:15:37 Helpful(0) Helpful(0)

What type of DDOS attack are you facing, udp-flood or syn-flood?
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Steelblue
Steelblue Created Apr 9, 2019 13:25:23 Helpful(0) Helpful(0)

Posted by Popeye_Wang at 2019-04-09 13:15 What type of DDOS attack are you facing, udp-flood or syn-flood?
It seems udp-flood attack
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Steelblue
Steelblue Created Apr 9, 2019 13:26:53 Helpful(0) Helpful(0)

Looking forward to your reply
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Popeye_Wang
Popeye_Wang Admin Created Apr 9, 2019 13:29:59 Helpful(0) Helpful(0)

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Popeye_Wang
Popeye_Wang Admin Created Apr 9, 2019 13:30:04 Helpful(0) Helpful(0)

we only can mitigate this by switch but cannot stop it, adjust the threshold value

anti-attack fragment car cir 15000                                             
anti-attack tcp-syn car cir 15000                                              
anti-attack icmp-flood car cir 15000
 

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Mohamed_Mostafa
Mohamed_Mostafa Created Apr 10, 2019 08:39:51 Helpful(0) Helpful(0)

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