Manual
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349 
5.3 Security Feature Example 
Scenario:  
The User has follows configuration requirements: the switch do not forward data packet whose 
source IP address is equal to the destination address, and those whose source port is equal to 
the destination port. Only the ping command with defaulted options is allowed within the IPv4 
network, namely the ICMP request packet can not be fragmented and its net length is normally 
smaller than 100. 
Configuration procedure: 
Switch(config)# dosattack-check srcip-equal-dstip enable 
Switch(config)# dosattack-check srcport-equal-dstport enable 
Switch(config)# dosattack-check icmp-attacking enable 
Switch(config)# dosattack-check icmpV4-size 100 










