Configuring Device Security
Defining DoS Prevention
Cisco Small Business SFE/SGE Managed Switches Administration Guide
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STEP 3
Click Apply. The DoS prevention global settings are defined, and the device is
updated.
Defining Martian Addresses
Martian Address Filtering enables discarding IP packets from invalid IP addresses.
Martian addresses include packets from a source IP addresses outside or not
used within the configured network. Martian addresses include any address
within the following ranges:
•
0.0.0.0/8 (Except 0.0.0.0/32 as a Source Address)
— Addresses in this
block refer to source hosts on this network.
•
127.0.0.0/8
— Used as the Internet host loopback address.
•
192.0.2.0/24
— Used as the TEST-NET in documentation and example
codes.
•
224.0.0.0/4 (As a Source IP Address)
— Used in IPv4 Multicast address
assignments, and This formerly known as Class D Address Space.
•
240.0.0.0/4 (Except 255.255.255.255/32 as a Destination Address)
—
Reserved address range, and is formerly known as Class E Address Space.
To define Martian Addresses: