#Siga o passo-a-passo, depois remover as configurações, pois pesa na caixa.


1-      reset cpu-defend statistics packet-type ttl-expired all
2-      wait 2 min then check send to CPU ttl-expired packets.
display cpu-defend statistics packet-type ttl-expired slot 0
 
3-      please configure cpu-defend policy find the attack-source .
#
cpu-defend policy test
 auto-defend enable
 auto-defend attack-packet sample 5
 auto-defend threshold 30  
 auto-defend trace-type source-mac source-ip  
 auto-defend protocol ttl-expired
#
#
cpu-defend-policy test
cpu-defend-policy test global
 
4-      after finished above configuration , we can use below command find the attack-source .
 
[Quidway] display auto-defend attack-source
  Attack Source User Table (MPU):
  -----------------------------------------------------------------------------------------------
   MacAddress       InterfaceName      Vlan:Outer/Inner      TOTAL
  -----------------------------------------------------------------------------------------------
  0000-0000-0001   GigabitEthernet5/0/0         500            310
  -----------------------------------------------------------------------------------------------
  Total: 1
 
  Attack Source IP Table (MPU):
  -------------------------------------------------------
   IPAddress        TOTAL Packets
  -------------------------------------------------------
  50.1.1.3         310
  -------------------------------------------------------
  Total: 1


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Contribuição Luiz Puppin