User Manual

16-Port Gigabit (Hi-Power) PoE+ Ethernet Smart Managed Pro Switch with 2 SFP Ports
Configure System Information User Manual76
4. Enter one of the following passwords:
• After registration, enter the device admin password.
• If you previously managed the switch through the Insight app or Cloud portal, enter
the Insight network password for the last Insight network location.
For information about the credentials, see
Credentials for the device UI on page 26.
5. Click the Go
button.
The System Information page displays.
6. Select System > Management
> Denial of Service > Denial of Service Configuration.
7. Select the types of DoS attacks for the switch to monitor and block and configure any
associated values:
• Denial of Service Min TCP Header Size. Specify the minimum
TCP header size
allowed. If you select the Denial of Service TCP Fragment
radio button, the switch
drops the first TCP fragment with a TCP payload packet for which the minimum TCP
header size is larger than the IP payload length minus the IP header size. The range
for the minimum TCP header size is from 0 to 31. The default value is 20.
• Denial of Service Max ICMP Packet Size. Specify the maximum ICMPv4 packet
size allowed. If ICMPv4 DoS prevention or ICMPv6 DoS prevention is enabled, the
switch
drops ICMPv4
or ICMPv6 ping packets with a size greater than the configured
value. The range is from 0 to 16376. The default value is 512.
• Denial of Service ICMPv4. Enabling ICMPv4 DoS prevention causes the switch to
drop ICMPv4 packets with a type set to ECHO_REQ (ping) and a size greater than
the configured ICMPv4 packet size.